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GeForce 8800 GS vs Radeon HD 6950 2GB

Intro

The GeForce 8800 GS uses a 65 nm design. nVidia has clocked the core speed at 550 MHz. The GDDR3 memory is set to run at a speed of 800 MHz on this particular model. It features 96 SPUs as well as 48 Texture Address Units and 12 Rasterization Operator Units.

Compare all of that to the Radeon HD 6950 2GB, which comes with core clock speeds of 800 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 memory. It features 1408 SPUs along with 88 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GS 105 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 95 Watts (90%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6950 2GB should theoretically be much superior to the GeForce 8800 GS in general. (explain)

Radeon HD 6950 2GB 160000 MB/sec
GeForce 8800 GS 38400 MB/sec
Difference: 121600 (317%)

Texel Rate

The Radeon HD 6950 2GB will be quite a bit (more or less 167%) faster with regards to AF than the GeForce 8800 GS. (explain)

Radeon HD 6950 2GB 70400 Mtexels/sec
GeForce 8800 GS 26400 Mtexels/sec
Difference: 44000 (167%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6950 2GB is the winner, by far. (explain)

Radeon HD 6950 2GB 25600 Mpixels/sec
GeForce 8800 GS 6600 Mpixels/sec
Difference: 19000 (288%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce 8800 GS

Amazon.com

Check prices at:

Radeon HD 6950 2GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce 8800 GS Radeon HD 6950 2GB
Manufacturer nVidia AMD
Year Jan 2008 December 2010
Code Name G92 Cayman Pro
Memory 384 MB 2048 MB
Core Speed 550 MHz 800 MHz
Memory Speed 1600 MHz 5000 MHz
Power (Max TDP) 105 watts 200 watts
Bandwidth 38400 MB/sec 160000 MB/sec
Texel Rate 26400 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 96 1408
Texture Mapping Units 48 88
Render Output Units 12 32
Bus Type GDDR3 GDDR5
Bus Width 192-bit 256-bit
Fab Process 65 nm 40 nm
Transistors 754 million 2640 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GS

Amazon.com

Check prices at:

Radeon HD 6950 2GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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