Power Consumption — Nvidia’s GeForce 8800 GTS 512 MB
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Power Consumption
Here’s the power supply’s total consumption. This sums up the consumption of the configuration as a whole including the Tagan U15 530 W power supply losses, which are 20% on the range of power considered here.
As expected the GeForce 8800 GTS 512 MB, which is based on the G92, raises the power consumption compared to the 8800 GT but not excessively. The rise in the configuration’s power consumption reaches 7 W when idle and 18 W when in peak (this is once the PSU losses have been subtracted). It allows the card to remain below the level of the previous GeForce 8800 GTS, but also below the HD 3870 in peak. While idle, the more advanced process used by AMD allow it to keep the upper hand. This value is without a doubt the most important when it comes to electrical costs and the PC’s carbon-footprint from global use.
Noise, Temperatures, Overclocking
The GeForce 8800 GTS 512 MB doesn’t appear to be louder than the 8800 GT, which is a very good thing. The fan was quiet and didn’t accelerate during our benchmarks. No worries here.
Let’s note that this reduces our interest in the Gigabyte version that replaces the heatsink with the VF-700-FS01 from Zalman. The latter doesn’t correct a potential flaw on the original version but on the contrary, cancels the requirement for a heatsink on the memory chips.
In regards to temperatures, we picked up a drop of approximately 5°C when compared to a GeForce 8800 GT in the same conditions. This is thanks to the prominent cooling system. We obtained 55°C in idle and 85°C in peak. Those values are lower than those found on the Radeon HD3870. Given all of this, the GeForce 8800 GTX and its much less evolved processes are only slightly hotter in idle (58°C) and remains 1°C below the 8800 GTS 512 MB in peak.
Overclocking
Where overclocking is concerned, we were quite surprised.
We thought the GPU, already pushed to high frequencies and equipped with 128 stream processors would not gain much compared to the memory. The opposite was true. We’ve been able to push the G92 of the 8800 GTS 512 MB from 650 to 776 MHz (+19% or 500 GFlops, meaning 44% better than a GTX!). All this is really impressive and a good sign regarding the G92 yields. However, the memory didn’t support more than a 3.5% increase, by reaching 1004 MHz with difficulty. This is perfectly reasonable for a memory chip certified to run at 1 GHz. In the end, with a game quite demanding in raw throughput like Age of Empires 3, we gained 9%.
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Review of ASUS GeForce 8800 GT 512Mb at NVIDIA G92 GECID.
com. Page 1
::>Video cards
>2007
> ASUS EN8800GT/G/HTDP/512M
20-12-2007
Page 1
Page 2
One page
Almost 2 months have passed since the official announcement of the GeForce 8800 GT graphics processor, and video cards based on it are still very rare in the free sale, as a result of which their prices do not drop to the recommended level. But finally, to our and, we hope, your joy, one of these video cards got into our test laboratory, but before getting acquainted with it, we suggest getting acquainted with its basis, i.e. G9 GPU itself2.
The GPU, which is codenamed G92, is now made using a «thinner» 65 nm process technology and consists of 754 million transistors. It is based on a unified shader architecture based on GigaThread technology, which implies an array of common processors for streaming vertex, pixel and geometry subroutines (although any other subroutines, such as physics calculations, can be executed if they are translated into a form understandable by the GPU).
This GPU has full hardware support for OpenGL 2.0 and DirectX 10.0, which means working with Shader Model 4.0, executing geometry shaders, support for changing geometry and writing intermediate data from shaders. At the same time, it supports working with 128-bit floating-point numbers to represent color information at all stages of the rendering pipeline. nine0003
GPU diagram G92
Textures and rendering (rendering) is handled by the NVIDIA Lumenex Engine, which supports 16x anisotropic filtering, 16x full screen anti-aliasing in multisampling modes and supersampling for normal and translucent surfaces. It also supports working with HDR lighting (high dynamic-range) and anti-aliasing at 128-bit precision (32-bit description of each texture point component when filtering and painting). Advanced lossless compression algorithms are used to compress color information, textures, z-buffer data and normal maps. And to cut off points invisible in the final scene, the Z-cull method is used, and thanks to the Early-Z technology, this method is able to discard the “extra” even before rasterization, so that you do not have to process unnecessary information.
nine0003
Despite the great similarity between the G80 and G92 architectures, it is worth noting that the texture modules of the latter have 2 times more texture address units, which should slightly speed up work with them and, accordingly, have a positive effect on performance.
Traditionally, for solutions of this level, SLI technology is supported, which allows you to increase the power of the graphics subsystem using parallel rendering on two or even more video cards. In addition, G92 supports NVIDIA Quantum Effects Technology, which is an extension of the shader architecture for performing physics calculations and rendering various effects on the GPU.
Video and HD video post-processing is handled by PureVideo HD technology built into the GPU to offload the central processing power when watching Blu-ray and HD DVD movies. The technology is fully compatible with H.264, VC-1, MPEG2 and WMV9 codecs for high definition video compression (up to 1920×1080 and bitrates up to 30-40 Mbps), and also includes HDCP (High-Bandwidth Digital Content Protection) content protection binding.
Hardware-assisted spatio-temporal deinterlacing, image scaling, frame de-scaling (2:2 and 3:2), frame conversion error correction, color correction, noise reduction, and smoothing are also performed.
The G92 itself is also responsible for working with external interfaces, unlike the previous solutions of the 8800 line, where the NVIO chip handled this. Two dual-link DVI outputs are supported, capable of forming an image with a resolution of up to 2560×1600 on digital monitors, and two 400 MHz RAMDACs are responsible for analog output, which are capable of forming an image with a resolution of up to 2048×1536 at a refresh rate of 85 Hz. The integrated HDTV encoder allows you to output to TV-out (Component/Composite/S-Video) images in up to 1080p. nine0003
A significant innovation is the use of an advanced PCI Express 2.0 interface for connecting a video card on the G92, which is backward compatible with the outdated slower PCI Express 1.0/1.1. PCI Express 2.0 allows you to double the bandwidth of a bidirectional data exchange channel, which for the x16 slot translates into 8 Gb / s in each direction, against 4 Gb / s in the previous protocol connector.
It is unlikely that the accelerated interface will bring a noticeable increase in the performance of a single video card, but in MultiGPU modes the effect should be noticeable. nine0003
These are the capabilities and features of the NVIDIA G92 graphics processor, and now let’s get some more technical details about it when comparing the characteristics of two possible solutions based on this GPU — GeForce 8800 GT with 256 and 512 MB of video memory.
|
GeForce 8800 GT 512 MB |
GeForce 8800 GT 256 MB |
|
|
Core frequency, MHz |
600 |
|
|
Frequency of universal processors, MHz |
1500 |
|
|
Number of universal processors |
112 |
|
|
Number of texture/blend units |
56 / 16 |
|
|
Memory size, Mb |
512 |
256 |
|
Effective memory frequency, MHz |
1800 (2*900) |
1400 (2*700) |
|
Memory type |
GDDR3 |
|
|
Memory bus width, bits |
256 |
|
|
Power consumption, W |
to 110 |
|
|
List price, $ |
249 |
199 |
Well, now let’s move on to a closer acquaintance with the test sample, which became the long-awaited reason for writing this material.
Meet ASUS EN8800GT/G/HTDP/512M — the first production sample of the GeForce 8800 GT that came to us for testing. nine0003
First, let’s give a brief description of the video card:
|
Model |
ASUS EN8800GT/G/HTDP/512M |
|
Graphics core |
NVIDIA GeForce 8800 GT (G92-270) |
|
Conveyors |
112 unified |
|
Supported APIs |
DirectX 10.0 |
|
Core frequency, MHz |
600 |
|
Size (type) of memory, MB |
512 (GDDR3) |
|
Real (effective) memory frequency, MHz |
900 (1800 DDR) |
|
Memory bus |
256 bit |
|
Tire standard |
PCI Express 2. |
|
Maximum resolution |
Up to 2560×1600 |
|
Outputs |
2x DVI-I (VGA via adapter only) |
|
nine0002 HDCP support HD video decoding |
Yes |
|
Drivers |
Fresh drivers can be downloaded from: |
|
Manufacturer website |
http://www.asus.com.tw/ |
|
Average price |
View in price.ua. |
0 X16 All prices for ASUS GeForce 8800 GT 512
The video card comes in a large double cardboard box with a handle, which is traditional for top products from ASUS.
The front of the package tells only the main features of the content and complements this with information about the presence in the kit of the full version of the popular game Company of Heroes: Opposing Fronts. nine0003
At the same time, the upper part of the package can be opened like a book, providing the buyer with information about the capabilities of the technology, or rather the GamerOSD utility, which allows you to configure some image and video card parameters, chat or communicate via WEB-camera without leaving your favorite game.
The reverse side of the package contains a little more information about the capabilities of the video card, but basically it is a listing of the capabilities of the G92 chip and an advertisement for ASUS proprietary technologies and utilities, such as Splendid, Video Security, GamerOSD and SmartDoctor. nine0003
Of the useful technical data on the packaging, we can only note the increased minimum system requirements for the computer in which the buyer is going to install ASUS EN8800GT/G/HTDP/512M/A.
So, now you “require” at least 1 GB of RAM or better, more, as well as a power supply unit with a capacity of at least 400 W, capable of delivering 26 A through the 12V line.
extensions. It includes:
- Peripheral Molex to 6-pin video power adapter;
- VGA to DVI adapter;
- Component HDTV-Out;
- Video Quick Install User’s Guide;
- 2 CDs with drivers, utilities and multilingual electronic manual;
- Complete DVD version of Company of Heroes: Opposing Fronts;
- Branded folder for 16 discs.
The entire surface of the front part of ASUS EN8800GT/G/HTDP/512M/A is hidden by an updated cooling system that now occupies only one slot, which is traditional for most GeForce 8800 GT implementations, regardless of the final manufacturer (seller, in fact).
The new cooler is quite compact and able to remove heat from all heating elements, both the GPU and video memory, and the power management module.
But, on the other hand, the price for compactness is the use of a rather noisy high-speed turbine, which at maximum rotational speed will always be annoying, both when the PC is turned on and during a high load of the hot G92 (with poor ventilation in the case).
The video card is made on green textolite with standard (reference) wiring, as expected. The circuit board itself is designed for all variants of video cards with G92 chips, both GeForce 8800 GT and GeForce 8800 GTS, which can already be confirmed with confidence after the recent announcement of the latter. So, one of the channels is not wired in the power stabilizer, which will be needed for video cards based on the G92-400 (GeForce 8800 GTS). We also draw your attention to the fact that the design of the board is also designed to install a VIVO chip, although we have not yet heard of such video cards. nine0003
The graphics card is large enough that it can become a hindrance when installing it in compact cases.
Also, because the auxiliary power connector is parallel to the graphics card circuit board, the graphics card actually needs a little more space from the back of the case to the hard drive cage or front panel.
The set of interface connectors includes two DVI, converted to VGA using adapters, and one HDTV-Out. Note that all connectors, including the SLI connector, are prudently closed with caps so that they can retain their original appearance for a longer time. nine0003
This is how the G92-270 graphics core (NVIDIA GeForce 8800 GT 256-bit) physically looks, operating at 600/1500 MHz for the raster and shader units, respectively. Data exchange with video memory now takes place over a 256-bit bus.
The 512 MB video memory itself is made up of eight GDDR3 Qimonda HYB18H512312BF-10 chips, which are designed to operate at an effective frequency of 2000 MHz, but on ASUS EN8800GT/G/HTDP/512M/A it operates at the recommended NVIDIA frequency of 1800 MHz DDR (real 900 MHz).
NVIDIA GeForce 8800 GT-Technical characteristics
349 $ / 20242 ₽ (rub)
Core frequency 1500 MHz
Process technology 65 nm
Power consumption (TDP) 105 W
Maximum memory 512 MB GB
NVIDIA GeForce 8800 GT was released in 2007 and by 2023 it has moderate performance (better than 49% of all video cards).
The main advantages of this model are: Value for money: 20.2, Price at the time of release: 349, Core frequency: 1500, Process: 65, Power consumption (TDP): 105, Maximum memory: 512 MB.
General
|
Value for money The sum of all the advantages of the device divided by its price. The more%, the better the quality per unit price in comparison with all analogues. |
19.7%
489 place in the rating Price/Quality |
|
Architecture |
Tesla |
|
Codename |
G92 |
|
Type |
Desktop |
|
Release price |
349 $ |
|
Number of shaders |
112 |
|
Number of CUDA cores A large number of CUDA cores improve performance in graphics computing, |
|
|
Core frequency |
1500 MHz |
|
Number of transistors |
754 million |
|
Process |
65 nm |
|
Power Demand (TDP) |
105 W |
|
Maximum temperature |
105 °C |
|
Floating point capacity |
336.0 gflops |
|
Tire |
PCI-E 2.0 |
|
Interface |
PCIe 2.0 x16 |
|
Length |
|
|
Additional power connectors |
6-pin & 8-pin |
|
SLI support |
2-way |
|
Video connectors |
Dual Link DVIHDTV |
|
Multi-monitor support |
1 |
|
Maximum resolution via VGA |
|
|
Audio input for HDMI |
S/PDIF |
|
High Dynamic-Range Lighting (HDRR) |
128 bit |
|
3D Vision |
+ |
|
CUDA The CUDA architecture enables applications that are optimized for |
