Ati radeon hd 4850 gpu: ATI Radeon HD 4850 Specs

Specifications — ATI Radeon HD 4850: Smarter by Design?

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Since only the Radeon HD 4850 has been made available for the moment, let’s look at the specifications for that card, along with those of the GeForce 9800 GTX +, which Nvidia has pulled out of its sleeve at the last minute to compete with it (though it won’t be available until July17).

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GPU HD 3870 X2 HD 4850 9800 GTX 9800 GTX + 280 GTX
GPU frequency 825 MHz 625 MHz 675 MHz 738 MHz 602 MHz
ALU frequency 825 MHz 625 MHz 1688 MHz 1836 MHz 1296 MHz
Memory frequency 900 MHz 1000 MHz 1100 MHz 1100 MHz 1107 MHz
Memory bus width 2×256 bits 256 bits 256 bits 256 bits 512 bits
Memory quantity 2 x 512 MB 512 MB 512 MB 512 MB 1024 MB
Number of ALUs 640 800 128 128 240
Number of texture units 32 40 64 64 80
Number of ROPs 32 16 16 16 32
Shading power 1. 06 TFlops 1 TFlops (648) GFlops (705) GFlops 933 GFlops
Memory bandwidth 115.2 GB/s 64 GB/s 70.4 GB/s 70.4 GB/s 141.7 GB/s
Number of transistors 1334 million 956 million 754 million 754 million 1400 million
Process 0.055µ 0.055µ 0.065µ 0.055µ 0.065µ
Die area 2 x 196 mm² 260 mm² 324 mm² 248 mm² 576 mm²
Generation 2008 2008 2008 2008 2008
Shader Model supported 4. 1 4.1 4.0 4.0 4.0

When looking at the main characteristics, first of all the 4850 seems to leave the 9800 GTX, or even its + version, no chance – with 27% more transistors, 800 ALUs, and a theoretical processing power of 1 Tflop, or 42% higher, not to mention support for Direct3D 10.1 and a superiority that’s often quite marked in synthetic tests, as we’ve seen. All that is nothing to sneeze at. Yet, due to its keeping a 256-bit memory bus, memory bandwidth remains a little weak. And AMD still has a clear lag in the number of texture units and ROPs, and seems not to have learned from the errors of the past in that department.

Engraved at 55 nm, the RV770 is a relatively small chip at 260 mm², less than half the size of the GT 200. That’s no longer an advantage for AMD, however, with Nvidia catching up with the 9800 GTX +, which introduced the G92b, a G92 engraved at 55 nm and which, according to our measurements, is 5% smaller than the RV770 thanks to its smaller number of transistors. That, by the way, is the main innovation of this card, and it allows a 9% boost in GPU frequency (and ALU frequency). And… that’s all! All the other characteristics (with the possible exception of temperature and power consumption, which we’ll check later) remain identical. We initially wondered why Nvidia hasn’t called the new card «GeForce 9800 Ultra,» and that would appear to be the explanation. It remains to be seen whether this new version really deserves to exist, except that it’s always a positive point for the purchaser to be able to distinguish between the two versions of the GPU (which wouldn’t have been possible with a gradual replacement of the 9800 GTX’ GPU).

Finally, note that the 4850 has the same theoretical power as the 3870 X2, but with an architecture that’s slightly improved, as we’ve seen, and other characteristics that are slightly different (in particular more texture units). So it will be particularly interesting to compare these two cards in the tests.

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ATI 100242L Radeon HD 4850 512 MB GDDR3 PCI-E Video Card

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The ATI Radeon HD 4850 Graphics Card brings the power of graphics, supercomputing to gamers and setting a new standard for visual computing. Redefine the way you play and take HD gaming to the extreme with best-in-class performance.

100242L Product Overview

Technical Information
  • RAMDAC Speed:     400 MHz
  • Maximum Resolution:     2560 x 1600
  • Analog Signal:     Yes
  • Digital Signal:     Yes
  • API Supported:     DirectX 10. 1
  • API Supported:     OpenGL 2.0
  • Multi-GPU Technology:     CrossFireX
  • Shader Model:     4.1
  • Number of Monitors Supported:     2
  • HDCP Supported:     Yes
  • Dual Link DVI Supported:     Yes
Processor & Chipset
  • Chipset Manufacturer:     ATI
  • Chipset Line:     Radeon
  • Chipset Series:     HD 4000
  • Chipset Model:     4850
  • Processor Speed:     625 MHz
  • Number of Stream Processors:     800
  • Standard Memory:     512 MB
  • Memory Speed:     993 MHz
  • Memory Technology:     GDDR3 SDRAM
  • Bus Width:     256 bit
  • Host Interface:     PCI Express 2. 0 x16
  • DVI:     Yes
  • Number of DVI Outputs:     2
  • System Requirements:     
  • PCI Express based PC is required with one x16 lane graphics slot available on the motherboard
  • 450 Watt or greater power supply with 75 Watt 6-pin PCI Express power connector recommended (550 Watt and two 6-pin connectors for ATI CrossFireX technology in dual mode)
  • 1GB of system memory
  • Installation software requires CD-ROM drive
  • DVD playback requires DVD drive
  • Blu-ray / HD DVD playback requires Blu-ray / HD DVD drive
  • For a complete ATI CrossFireX system, a second ATI Radeon HD 4850 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per board is required
  • Operating System:

  • Microsoft Windows Vista
  • Platform Supported:     PC


ATI Radeon HD 4850 — Drivers & Specifications 2023


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  • Specs
  • Drivers
  • Benchmark & ​​Performance
  • Gaming
  • Specs

    Radeon R700
    PCIe 2. 0 x16
    GPU frequency
    625 MHz
    Memory size
    512 MB

    9002 5 DirectX

    10.1 (10_1)
    Release date
    Jun 25th, 2008


    Chip variation
    RV770 PRO (215-0669065)
    55 nm
    956 million
    Die size

    900 27 256 mm²

    Video card

    Release date
    Jun 25th, 2008
    Radeon R700
    Production 900 26

    Release price
    199 USD
    PCIe 2.0 x16
    127 in our database
    Radeon R600


    GPU frequency
    625 MHz
    Memory frequency
    993 MHz 1986 Mbps effective

    900 41


    Memory size
    512 MB
    Memory type
    Memory bus
    256 bit
    63. 55 GB/s

    Render 9001 1

    Compute units
    L1 cache
    16 KB (per CU)
    L2 cache
    256 KB


    Pixel rate
    10.00 GPixel/s
    Texture rate
    25.00 GTexel/s
    FP32 performance 9002 6

    1,000 GFLOPS
    Performance FP64
    200.0 GFLOPS (1:5)

    Design and dimensions

    Slot width
    Single-slot 90 028

    246 mm 9.7 inches
    Heat dissipation
    110 W
    Recommended PSU
    300 W
    2x DVI1x S-Video
    Power Connectors
    1x 6-pin

    900 25 Board number



    10.1 (10_1)
    3. 3
    Shader Model


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    Benchmark and performance


    1 937 39101

    Comparison with similar graphics cards

    • 90 014
    • ATI Radeon HD 4850


    • 9 0014


    For games


    ATI Radeon HD 4850 specifications, price, gaming test, competitors

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    • Radeon HD 4850

    903 48 The ATI Radeon HD 4850 was announced on 2008-06-25 and later went on sale at a suggested price of 199 . The graphics accelerator is based on a chip: RV770 PRO
    (215-0669065). Created on the TeraScale architecture using a 55 nm process technology. The gaming performance is 1.5 out of 100 in our tests.

    The stock TDP is 110W.

    Price in Russia

    Want to buy a Radeon HD 4850 cheaply? Look at the list of stores that already sell a video card in your city.

    ATI Radeon HD 4850 benchmark

    Gaming speed

    ATI Radeon HD 4850 performance in games, benchmarks and similar applications, according to our tests.

    Office computer

    Office computer

    Popular among users who choose a graphics adapter for the office.


    Popularity among users who choose a workstation graphics adapter.

    Data obtained from tests by users who tested their systems with and without overclocking. Thus, you see the average values ​​corresponding to the video card.

    Our benchmarks

    3D DX9

    Minimum Average Maximum
    10 Illumination: 11 13



    8 Reflections: 10 12
    7 Parallax: 8 9

    DirectX 9 3D graphics test suite. DirectX 9 is an API that has been used to create many games. Although obsolete, it remains relevant to this day. It has been used to create popular games that have already become classics, such as Halo, Far Cry, Doom 3 and Half Life Two.

    3D DX10

    Minimum Average Maximum
    6 MRender: 8 8



    7 N-body: 8 8



    8 Spray: 12 14


    2. 6

    DirectX 10 3D Graphics Test Suite DirectX 10 is a newer set of APIs that are used to build popular games. Gradually losing relevance, however, is used in such well-known games as Battlefield 4, Company of Heroes, Crysis and Dirt.



    Manufacturer ATI
    ArchitectureCode name for the microarchitecture generation. TeraScale
    Chip manufacturer A company that manufactures chips in its own factory. TSMC
    Process The manufacturing process, measured in nanometers. The smaller the technical process, the more perfect the technology, the lower the heat dissipation and power consumption. 55 nm
    Number of transistors 956,000,000
    Interface PCI Express version. It is backward compatible, which allows you to install a PCIe 4.0 video card in a motherboard with a PCIe 3.0 slot. Sometimes manufacturers cut the number of lanes, for example AMD in the RX 6500 XT, which results in performance drops of up to 10-40%, depending on the game, when running an outdated 3.0-only motherboard. PCIe 2.0 x16
    TDPThermal Design Power is an indicator that determines the heat dissipation in standard operation. 110W.
    Power supply Recommended power supply capacity for trouble-free operation. Please note that there are other consumers in the system, and power supplies vary in quality and efficiency. Also, operating at the power limit of the PSU, the fan may be too noisy. 300W.

    Video processor specifications

    Video memory specifications

    Video memory frequency Depends on the type of soldered chips. 9931986
    Type of video memory Each new generation provides a twofold increase in throughput while reducing voltage and heat dissipation. GDDR3
    Bus width Once upon a time, a relevant characteristic, since the performance of mid-budget cards was greatly reduced, lowering the bus width. Now there are very fast GPUs with a small bus, but very high-frequency memory chips, which gives sufficient bandwidth. 256bit
    Bandwidth bandwidth — an important characteristic obtained by a simple formula bandwidth = bus width * memory frequency. 63.55 GB/s

    Supported Technologies

    DirectX High Level API. Windows users can check their version by typing «dxdiag» in the start menu search. We recommend buying graphics accelerators that support the latest version at the time of purchase, so as not to face the fact that a new game does not start in a couple of years. 10.1 (10_1)
    OpenGL Platform and language independent programming interface. Used not only for applications, but also in some great games, such as SOMA. 3.3
    OpenCL Used to speed up calculations. For example, Photoshop uses OpenCL acceleration for Edge Refinement, Smart Sharpen, and Blur Gallery. 1.1
    Vulkan A low-level, cross-platform API that gives developers direct access and control over the graphics accelerator. Some games allow you to choose between DirectX and Vulkan, with the latter having better performance. N/A
    Shader Model Shader version is important if you want to play modern games but buy an old graphics card. 4.1

    Detailed specifications

    Shading Units 800
    TMUsTexture mapping unit — graphics card blocks that apply textures to polygons. 40
    ROPsRender output units — rasterization units. Their number and performance directly affects the fill rate. 16
    Compute UnitsExecutive units in AMD video cards. 10
    L1 Cache 16 KB (per CU)
    L2 Cache 256KB

    Theoretical performance

    Pixel Rate 10.00 GPixel/s
    Texture Rate 25.00 GTexel/s
    FP32 (float) performance 1,000 GFLOPS
    FP64 (double) performance 200.0GFLOPS (1:5)

    The rest

    Presentation datePresentation in the media, official information. 2008-06-25
    Generation Radeon R700
    (HD 4800)
    GPU RV770 PRO
    Video outputs 2x DVI
    1x S-Video
    Power cable connector 1x 6-pin
    Board number B501-31


    Games Office Heavy duty
    Better than Nvidia NVS 310 AMD Radeon HD 7500M Nvidia GeForce GT 555M
    Worse than Nvidia Quadro 1000M Nvidia GeForce GT 635M Nvidia GeForce GT 420

    Please note that competitors are selected automatically based on performance in a particular task.