Gigabyte G1 Gaming GeForce GTX 960 4GB Review (Page 13 of 13)
Page 13 — Overclocking and Conclusion
Gigabyte supplies a utility for tuning their graphics cards, called OC Guru II. As its name suggests, it is a utility used for tuning the performance of your video card. It allows the voltage of your GPU and memory to be adjusted for overclocking and fan speed control. On a side note, Gigabyte’s OC Guru II has one of the best fan speed control features I have ever seen; it allows a six step fan speed adjustment based on temperature. You really cannot ask for more. Just for comparison, MSI Afterburner only allows four. Most people like to use MSI Afterburner — me included — but for the sake of this review, we will stick with the manufacturer’s software. With the Gigabyte G1 Gaming GeForce GTX 960 4GB, I think the fan programming from the factory is bang on already.
With the latest software revision, I got it installed on my test platform, and immediately got to work. I bumped up the core voltage 12.5mV, and went as far as I could go. As you can see in our screenshot above, the GTX 960 core did pretty well in this area — Gigabyte already has a 139MHz core overclock from the factory, and I managed to squeeze an extra 130MHz out of that. The net figure is 1371MHz GPU with 1434MHz boost, which translates to a commendable 21.7% over NVIDIA specifications, or 10.2% over Gigabyte specifications. To verify stability, I ran a burn in test using Furmark. I also scanned for artifacts in in addition to testing for stability using this program. Since Gigabyte neglected to overclock the memory from the factory, here is where our work comes in handy. Starting from 7010MHz effective, our Samsung K4G41325FC-HC28 memory ICs reached 7992MHz without any problems, a commendable 14% over NVIDIA specifications.
In the end, our Gigabyte G1 Gaming GeForce GTX 960 4GB was able to clock 21.7% over NVIDIA base clocks for core and 14% for memory. To see how it performed, I ran Fire Strike Extreme in 3DMark, and got a score of 3953.
The Gigabyte G1 Gaming GeForce GTX 960 4GB (Which is overclocked slightly from the factory) delivered a score of 3538 in base form, which represents an improvement of roughly 11.7%.
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It is true just because two things look very similar from a distance, does not mean they are the same thing. On the other hand, because two things look similar, it means there are ways where they share similar characteristics. Just like my friend in the introduction of this review who got a haircut that ostensibly looked the same as it was before, it is a clear indication there are elements that are the same, and then we have differences beneath the surface. For the Gigabyte G1 Gaming GeForce GTX 960 4GB, we can share a similar story. We can say it looks similar the G1 Gaming variant of the GTX 970, because it has pretty much the same heatsink installed. After so many years of using Gigabyte’s WindForce 3X cooler on a variety of video cards, it is a proven formula that works.
It is not just because of its massive 600W of thermal dissipation power. It is also because of its near-perfect fan ramp up profile, creating a card that is literally silent when idling, and runs reasonably cool and quiet when it is not. Further equipped with the usual Gigabyte G1 Gaming formula of high quality electronic components, hand-picked GPU, and specially selected memory, the GV-N960G1 GAMING-4GD is one of the faster cards in the market today, plus some room left for further overclocking. For the parts beneath the surface, NVIDIA’s GM206 slots between the GK104 and GM204 in performance, except it is much closer to the GK104 than the GM204. It is not a bad thing, considering the GK104 was a pretty good GPU, and the GM206 carries a substantial improvement in power consumption over its predecessor. It is just if you already own a GTX 760, it is probably not worth the swap. On the other hand, if you are shopping for a new mainstream card that delivers, the Gigabyte G1 Gaming GeForce GTX 960 4GB remains to be the one that stands out from the crowd.
Now, back to the topic of haircuts, excuse me while I make a call to the lady who cuts my hair.
Gigabyte provided this product to APH Networks for the purpose of evaluation.
APH:Renewal Award
Since April 30, 2007, Number Ratings have been dropped for all CPUs, motherboards, RAM, SSD/HDDs, and graphics cards. This is to ensure the most appropriate ratings reflected without the inherent limits of using numbers. Everything else will continue using the Number Rating System.
More information in our Review Focus.
The Gigabyte G1 Gaming GeForce GTX 960 4GB continues to be an outstanding interpretation of the GPU it represents in a world filled with run-of-the-mill graphics cards.
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Page Index
1. Introduction, Packaging, Specifications
2.
NVIDIA GeForce GTX 960 Architecture
3. A Closer Look, Installation, Test System
4. Benchmark: 3DMark
5. Benchmark: Battlefield 4
6. Benchmark: BioShock Infinite
7. Benchmark: Crysis 3
8. Benchmark: GRID 2
9. Benchmark: Metro: Last Light
10. Benchmark: Thief
11. Benchmark: Unigine: Heaven 4.0
12. Power Usage, Temperature, Noise
13. Overclocking and Conclusion
NVIDIA GeForce GTX 960 specifications, performance, preview
Today is January 22nd, which means NVIDIA launches GeForce GTX 960.
The new GeForce GTX 960 is equipped with Maxwell GM206-300 GPU, which is in fact, the full chip. The GM206 is pretty much GM204 cut in half, thus it has only two Graphics Processing Clusters (GPCs), each with four Streaming Multiprocessors Maxwell (SMMs). Most importantly I can now confirm GM206 has 64 Texture Mapping Units (TMUs) and 32 Raster Operations Pipelines (ROPs).
GeForce GTX 960 features 2GB GDDR5 memory across 128-bit interface.
The reference card is equipped with one 6-pin power connector and the TDP is measured at 120W. Now let me remind you, TDP is not maximum power consumption, but thermal power design. These cards can easily reach higher consumption, especially with non-reference with 8pin or dual 6pin connectors.
GeForce GTX 960 power consumption is somewhat disappointing. We have a new card with 640 CUDA cores less than GTX 970 and TDP rated just 25W lower.
NVIDIA GeForce GTX 960 will be available with reference design as well. However due to the cost of NVTTM cooler, GTX 960 will feature older GTX 670-style plastic blower-type cooler. It’s nothing special, but GTX 960 will be compatible with some of the previous GeForce GTX models, so those who already bought aftermarket coolers, can easily upgrade to newer card at lower cost.
NVIDIA GeForce GTX 960 is priced at 199 USD. Custom models are available starting from 209 USD.
| NVIDIA GeForce GTX 960 Specifications | |||
|---|---|---|---|
| GeForce GTX 960 | GeForce GTX 970 | GeForce GTX 980 | |
| Picture | |||
| GPU | 28nm GM206-300 | 28nm GM204-200 | 28nm GM204-400 |
| CUDA Cores | 1024 | 1664 | 2048 |
| TMUs | 64 | 104 | 128 |
| ROPs | 32 | 64 | 64 |
| Core clock | 1127 MHz | 1050 MHz | 1127 MHz |
| Boost Clock | 1178 MHz | 1178 MHz | 1216 MHz |
| Memory Clock | 1753 MHz | 1753 MHz | 1753 MHz |
| Memory Bus | 128-bit | 256-bit | 256-bit |
| Memory Size | 2GB | 4GB | 4GB |
| Bandwidth | 112 GB/s | 224 GB/s | 224 GB/s |
| DirectX | 11. 3/12 |
11.3/12 | 11.3/12 |
| TDP | 120W | 145W | 165W |
| Power Connectors | 1x 6-pin | 2x 6-pin | 2x 6pin |
| Display Outputs | 2x DL-DVI,HDMI 2.0, DP | 1x DVI-I, 1x HDMI 2.0, 3x DP | 1x DVI-I, 1x HDMI 2.0, 3x DP |
| MSRP | 199 USD | 329 USD | 549 USD |
NVIDIA GTX 960 is overclockers dream
While this statement may come as a surprise to some of you, it is actually true. Of course not all sample will clock at 1.5 GHz, but for models like MSI GTX 960 GAMING can reach 1558/1800 MHz (core/mem) without much trouble.
Maxwell GM206 block diagram
Here is GM206 block diagram, which confirms our predictions about TMUs and ROPs.
NVIDIA GeForce GTX 960 performance preview
Testing platform configuration:
- Intel Core i7 3960X @ 4.
5 GHz, ASUS X79, Kingston 16GB @ 2400 MHz - MSI GTX 960 GAMING (non-reference clocks 1216 / 1279 / 7010 MHz)
NVIDIA GeForce GTX 960 graphics cards roundup
This roundup will also cover few cards you have not seen so far, including: Gigabyte GTX 960 WF2, Gigabyte GTX 960 Mini-ITX, MSI GTX 960 (ref.), POV GTX 960 (ref.), POV GTX 960 AMMO and some others.
| NVIDIA GeForce GTX 960 Roundup | |||
|---|---|---|---|
| Picture | Name | Clocks | Comments |
| ASL | |||
| ASL GeForce GTX 960 | – / – / 7010 MHz | 1x 6pin (GTX 960 2G D5) | |
| ASUS | |||
| ASUS GeForce GTX 960 STRIX | 1253 / 1317 / 7010 MHz | 1x 6pin, backplate, DVI 2x, HDMI 1x, DP 1x (STRIX-GTX960-DC2OC-2GD5, 90YV07N0-M0NA00) |
|
| ASUS GeForce GTX 960 | (GTX960-DC2OC-2GD5-PRO) | ||
| COLORFUL | |||
| Colorful iGame GeForce GTX 960 | |||
| Colorful GeForce GTX 960 | (GTX960 CH-2GD5) | ||
| EVGA | |||
| EVGA GeForce GTX 960 SSC | 1279 / 1342 / 7010 MHz | 1x 8pin (02G-P4-2966-KR) | |
| EVGA GeForce GTX 960 SC Mini | 1216 / 1279 / 7010 MHz | 1x 6pin (02G-P4-2962-KR) | |
| EVGA GeForce GTX 960 FTW | 1304 / 1367 / 7010 MHz | 1x 8pin (02G-P4-2968-KR) | |
EVGA GeForce GTX 960 (Ref. ) |
1127 / 1178 / 7010 MHz | 1x 8pin (02G-P4-2963-KR) | |
| GAINWARD | |||
| Gainward GTX 960 | |||
| Gainward GeForce GTX 960 Phantom | |||
| GALAX/KFA2 | |||
| Galax GeForce GTX 960 | NVTTM cooler (GTX 960-2GD5) | ||
| Galax GeForce GTX 960 SOC (GAMER) | (GTX 960-2GD5 OC), backplate | ||
| KFA2 GeForce GTX 960 (Ref.) | – / – / 7010 MHz | ||
| KFA2 GeForce GTX 960 OC | – / – / 7010 MHz | ||
| KFA2 GeForce GTX 960 EXOC | – / – / 7010 MHz | Backplate | |
| Gigabyte | |||
| Gigabyte GeForce GTX 960 Mini-ITX | 1165 / 1228 / 7010 MHz | The first GTX960 Mini-ITX model (GV-N960IXOC-2GD) | |
Gigabyte GeForce GTX 960 G1. Gaming |
1241 / 1307 / 7010 MHz | 2x 6-pin, backplate (GV-N960G1 GAMING-2GD) | |
| Gigabyte GeForce GTX 960 WindForce 2X OC | 1216 / 1279 / 7010 MHz | New WindForce 2X cooler (GV-N960WF2OC-2GD) | |
| INNO3D | |||
| Inno3D Geforce GTX 960 HerculeZ X2 OC | 1178 / – / 7010 MHz | Herculez 3X AIR Boss (no 40mm fan) (N960-1DDV-E5CNX) | |
| Inno3D Geforce GTX 960 HerculeZ X1 | 1127 / 1178 / 7010 MHz | (N960-1SDV-E5CN) | |
| Inno3D iChill GeForce GTX 960 Ultra | 1329 / 1393 / 7010 MHz | (C960-2SDN-E5CNX) | |
| MSI | |||
| MSI GeForce GTX 960 GAMING 2G | 1216 / 1279 / 7010 MHz | 1x 8pin, 4+1 phase VRM, Twin Frozr V | |
| MSI GeForce GTX 960 GAMING 100ME | 1216 / 1279 / 7010 MHz | 1x 8pin, 4+1 phase VRM, backplate, Twin Frozr V | |
| MSI GeForce GTX 960 OC (Armor 2X) | 1178 / 1241 / 7010 MHz | 1x 6pin, 3+1 phase PWM, Armor 2X | |
MSI GeForce GTX 960 (Ref. ) |
1127 / 1178 / 7010 MHz | ||
| PALIT/MAXSUN | |||
| Palit GeForce GTX 960 OC | |||
| Palit GeForce GTX 960 JetStream | 1203 / – / 7200 MHz | ||
| Palit GeForce GTX 960 Super JetStream | 1279 / 1343 / 7200 MHz | ||
| MAXSUN GeForce GTX 960 JetStream | 1203 / – / 7200 MHz | ||
| MAXSUN GeForce GTX 960 Super JetStream 2G | 1279 / 1343 / 7200 MHz | ||
| PNY | |||
| PNY GeForce GTX 960 | (GF960GTX2GEPB) | ||
| Point-of-View | |||
| POV GeForce GTX 960 | – / – / 7010 MHz | ||
| POV GeForce GTX 960 AMMO | – / – / 7010 MHz | ||
| ZOTAC | |||
| ZOTAC GeForce GTX 960 | 1177 / 1240 / 7010 MHz | (ZT-90301-10M) | |
| ZOTAC GeForce GTX 960 OC | 1177 / 1240 / 7010 MHz | (ZT-90302-10M) | |
| ZOTAC GeForce GTX 960 AMP! | 1266 / 1329 / 7010 MHz | (ZT-90303-10M) | |
| ZOTAC GeForce GTX 960 AMP! | 1266 / 1329 / 7010 MHz | (ZT-90304-10M) | |
| ZOTAC GeForce GTX 960 AMP! | 1266 / 1329 / 7010 MHz | Free Metal Gear Solid V (ZT-90307-10M) | |
| ZOTAC GeForce GTX 960 | 1177 / 1240 / 7010 MHz | Free Metal Gear Solid V (ZT-90306-10M) | |
Review MSI GTX 960 Gaming 2G – the most balanced video card NVIDIA
NVIDIA video cards with the number «60» in the name are rightfully considered optimally balanced solutions capable of running even the most demanding games at FullHD resolution, albeit not at ultra, but certainly at high graphics settings.
Moreover, in order to get a significant increase in performance, the new “sixties” should be bought in one generation. For example, the GeForce GTX 460 (Fermi architecture) was successfully replaced by the GTX 660 (Kepler), which, in turn, was replaced by the GTX 960 (Maxwell). It is about the brand new GeForce GTX 960 by MSI that will be discussed in this article.
The editors would like to thank MSI for kindly providing the video card for testing.
1. Specifications
2. Architectural features
3. Design and construction
4. Test bench configuration
5. Overclocking and testing 9 Results in benchmarks and
games 6.0002 7. Conclusions
8. Prices in online stores
Specifications
| Model name | MSI GTX 960 Gaming 2G |
| Graphics chip | GM206 |
| Process | 28 nm |
| Number of stream processors | 1024 |
| Number of texture units and render units | 64 / 32 |
| Core frequency / Boost | 1241 / 1304 MHz |
| Video memory size | 2 GB |
| Memory bus | 128 |
| Memory type | GDDR5 |
| Memory frequency | 7010 MHz |
| Video outputs | DVI, HDMI, 3 x DisplayPort |
| Declared power level | 120 W |
| Power supply | 8-pin |
| Dimensions | 267 x 139 x 36 mm |
Architectural Features
NVIDIA’s latest graphics chip architecture is Maxwell, named after the famous British scientist James Maxwell.
By the way, the previous architectures of Fermi and Kepler are the Italian physicist Enrico Fermi and the German astronomer Johannes Kepler, respectively.
Maxwell is divided into two generations with slight architectural differences: the first includes the entry-level GeForce GTX 750 and 750 Ti graphics accelerators, and the second includes the mid-range GTX 960, the pre-flagship GTX 970, the flagship GTX 980, and not so much the gaming as the already enthusiastic GTX TITAN X.
The GeForce GTX 960 has 1024 stream processors. For comparison, the one-stage junior GTX 750 Ti has only 640 microcores. The reference version of the GTX 960 has a frequency formula of 1127/1178 MHz for the core (nominal / Boost) and 7000 MHz for the video memory. MSI overclocked its own GTX 960 Gaming 2G directly at the factory to 1241/1304 MHz for the core (in the early version of the BIOS firmware, video cards were slightly lower), and left the memory frequency unchanged.
NVIDIA’s decision to equip the GTX 960 with only a 128-bit memory bus initially received a lot of criticism from gamers and PC enthusiasts.
But as practice has shown, at FullHD resolution, the 128-bit GTX 960 significantly outperforms not only the 192-bit GTX 660, but also the 256-bit GTX 760 by a slight margin. of the famous Gaming series: the same black and red color, a pair of large fans and a dragon image. But de facto, the cooling system here is an updated TwinFrozr V, which is currently only used in MSI GTX 9 series video cards.00. Whereas slightly older MSI graphics cards, such as the R9 270 Gaming 2G, are cooled with Twin Frozr IV. The difference in temperature at the same fan speed between the old TwinFrozr IV and the new Twin Frozr V can be up to 10°C.
The cooling system heatsink consists of a large base plate, three SuperSU heat pipes (two 6 mm, one 8 mm) and a large number of thin Airflow fins. Additionally, a small heatsink is installed directly on the printed circuit board of the video card on top of the transistors of the power subsystem. All this is blown by two 100-mm fans with a unique shape of Torx blades.
On one of the fans, the MSI logo flaunts, on the other, an image of a dragon. Another manufacturer’s logo and a dragon are depicted on the end of the casing, and when the PC is turned on, they glow white (flicker can be adjusted using the Gaming APP).
Another important innovation of the MSI GTX 960 Gaming 2G cooling system is the Zero Frozr technology, which completely turns off the graphics card fans in idle PC and even in simple games to minimize noise and reduce wear and tear. If desired, the noise level can also be reduced in resource-intensive games: for this, in the Gaming APP, you can switch between frequency profiles OC (1304 MHz), Gaming (1253 MHz) and Silent (1178 MHz). In the case of the latter profile, the fans rotate at ultra-low speeds.
The printed circuit board is black and about a third empty, since the energy-efficient GeForce GTX 960 graphics chip (TPD of only 120 W) does not require a very powerful power subsystem. For comparison, the previous GTX 760 consumed as much as 170 watts of electricity.
Nevertheless, the MSI GTX 960 Gaming 2G fully complies with the Military Class reliability standard with SolidCap capacitors capable of operating at elevated temperatures and superconducting SFC inductors.
On the reverse side, the board is not covered by a solid metal plate — this is the privilege of the «anniversary» version of the GTX 960 Gaming 100ME. On the other hand, a metal stiffener stretches along one of the edges, so you don’t have to worry about the strength of the structure.
MSI GTX 960 Gaming 2G has five video outputs: DVI (with D-Sub adapter), HDMI and three DisplayPort. The graphics card comes with useful MSI Afterburner applications for manual overclocking (with Predator for gameplay video recording), MSI Gaming APP for switching frequency profiles, and XSplit Gamecaster for streaming games to YouTube and Twitch.
Test bench configuration
- AMD FX-8320E processor (8 cores, 3.2-4.0 GHz)
- be quiet! Pure Rock (up to 150W)
- MSI 970 Gaming motherboard (AMD AMD3+)
- RAM Kingston HyperX Savage 2×8 GB (DDR3, 2400 MHz)
- MSI GTX 960 Gaming 2G graphics card (2 GB)
- WD Black hard drive (4 TB, 7200 rpm)
- be quiet! POWER ZONE Z1-850W (750 W, 80 PLUS Bronze)
Overclocking and testing
We managed to overclock our MSI GTX 960 Gaming 2G to 1396/1459 MHz for the core and 7732 MHz for the memory without increasing the supply voltage.
The increase in clock frequency compared to the nominal amounted to 155 MHz (12 percent) for the core and 720 MHz (10 percent) for the memory. A decent result, given the already existing factory overclocking.
Video card tested in Unigine Valley graphics benchmark (Extreme HD mode) and games with built-in benchmarks Tomb Raider (graphic settings «Excellent»), Middle-earth: Shadow of Mordor («High»), Total War: Rome II (Ultra) and Sniper Elite 3 (Ultra) at 19 resolution20x1080 dots.
Benchmark and game results
| Game or benchmark / graphics settings | Rated frequencies, fps | Acceleration, fps | Growth, percent |
| Unigine Valley, Extreme HD | 35 | 39 | 11 |
| Tomb Raider, Excellent | 90 | 99 | 10 |
| Middle-earth: Shadow of Mordor, High | 70 | 77 | 10 |
| Total War: Rome II, Ultra | 65 | 72 | 11 |
| Sniper Elite 3, Ultra | 91 | 101 | 11 |
As shown by testing, all benchmarks and games received an increase in frame rate, equivalent to overclocking — 10-11 percent.
So, in the games Tomb Raider and Sniper Elite 3, after overclocking, the frame rate reached 100 FPS, and in the slightly more demanding Middle-earth: Shadow of Mordor and Total War: Rome II, it exceeded 70 FPS.
At idle, when the graphics card fans were not spinning, the core temperature was 50 ° C, after a fifteen-minute warm-up by the Unigine Valley benchmark at nominal frequencies — 66 ° C with a fan speed of 800 rpm, and under load after overclocking increased to only 68 °C at the same speed. The TwinFrozr V cooling system coped with its task not only efficiently, but also extremely quietly.
Conclusions
60 confirmed its status as a perfectly balanced video card in terms of price and performance. The MSI GTX 960 Gaming 2G version was doubly pleased: quiet, efficient and, which is important for a gamer, a stylish-looking cooling system, high reliability of the design, rather big factory overclocking and even more potential for additional manual overclocking.
The video card turned out without obvious flaws, for which it deservedly receives our highest award, Root-Nation Editors’ Choice.
Benefits:
- high performance
- Balanced Energy
- high quality electronic components
- quiet and efficient cooling system
- good overclocking potential
Deficiencies:
- none significant
Prices in online stores
It is possible to display similar models if this one is not in the catalog.
[socialmart]
[freemarket model=”MSI GTX 960″]
[ava model=”MSI GTX 960″]
Review of ASUS Turbo GeForce GTX 960 GreenTech_Reviews
Review and testing of ASUS Turbo GeForce GTX 960 OC Edition
Reference versions of junior models of video cards are practically not in demand — still, even though they are relatively cold, but regular cooling, in comparison with the proprietary developments of many manufacturers, even purely psychologically may not suit.
But, of course, there is a plus in this type of cooling — hot air is completely taken out of the case. Another negative point may be the design. Of course, the top NVIDIA video cards now have a very stylish design, but less productive solutions cannot boast of this. ASUS offers the Turbo series — video cards with not the usual DirectCU cooling, but, by analogy with the reference versions, with a turbine. Today we have ASUS Turbo GeForce GTX 9 in our hands60, which stands out against the background of others also with the snow-white color of the casing of the cooling system. What is hidden under it? What will be the temperatures? Can this video card be overclocked? You will find the answers to these questions as you read this review!
It is extremely easy to see a box with ASUS Turbo GeForce GTX 960 on a store shelf. You have already seen the photo of the front of the box, so there is no point in ranting further on this topic.
The manufacturer pays special attention to the cooling system, a set of high-quality electronic components called Super Alloy Power, as well as proprietary ASUS GPU Tweak software, which comes with a one-year premium license for XSplit Gamecaster (video recording and streaming).
The full model name is TURBO-GTX960-OC-2GD5.
The kit is not rich — a disk with drivers and software, as well as a brief instruction for installing a video card.
The design of the video card is completely new — a snow-white plastic casing with bright red elements attract the eye. It is a pity that in most cases such beauty is completely hidden from view.
The reverse side cannot boast of neatness. The backplate is not provided, so we see not only the reverse side of the turbine, but also the printed circuit board with electronic components.
You can’t just walk by and not look at the cooling design…
By the way, the fan draws air from both sides of the video card:
As you have already noticed, the size of the video card is greatly increased by the cooling system. The card itself is small, and it requires only one 6-pin cable to power it.
An SLI configuration can only be assembled from two such video cards — there is only one corresponding connector.
There are five interfaces for connecting displays:
— one DVI-I;
— one HDMI 2.0;
— three Display Ports.
A few screws and a couple of latches — and the plastic casing with the fan is removed. It seems that the radiator is the simplest. But no… More on that later.
Plastic part of the cooling system on the back.
Here is such a small hedgehog that meets us after dismantling the plastic part.
The GPU and memory power subsystem is cooled by a separate aluminum heatsink.
It comes into contact with mosfets through a soft, but not elastic, thermal pad.
But the main radiator is very heavy and has a thick copper base.
Video card without cooling. Note that this imprint of thermal paste is not factory. It’s just that the previous tester didn’t apply the thermal paste very carefully. It is noteworthy that three sites have been prepared for video memory, and only two microcircuits are used.
Two more (again — out of three) are located on the opposite side of the printed circuit board.
All chips are labeled Samsung K4G1325FC-HC28.
The GPU power subsystem has four phases, and one more for the memory.
The uP1608TK controller controls the voltage to the GPU.
For similar action for memory — uP1959R.
Test
Test bench:
— Intel Core i7-4770K @ 4.5 GHz
— ASUS Maximus VI Extreme
— Crucial Ballistix Tactical Tracer BLT4G3D1869DT2TXOB (2x 4 GB, 1866 MHz, 9-9-9-27)
— ASUS ROG RAIDR Express SSD 240 GB
— Fractal Design Newton R3 1000W (White, 80+ Platinum)
Information from the GPU-Z utility. Core frequency — 1190 (in Boost — 1253) MHz, memory — 1753 (7012) MHz. In fact, the frequency in Boost can reach 1341 MHz.
We managed to overclock the video card up to 1340 (in Boost — 1403) MHz for the core and up to 1853 (7412) MHz for the memory.