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GeForce 8800 GTS (G80) 320MB vs Radeon HD 6950 2GB

Intro

The GeForce 8800 GTS (G80) 320MB comes with core clock speeds of 513 MHz on the GPU, and 792 MHz on the 320 MB of GDDR3 RAM. It features 96 SPUs as well as 48 Texture Address Units and 20 Rasterization Operator Units.

Compare all of that to the Radeon HD 6950 2GB, which features 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 GTS (G80) 320MB 143 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 57 Watts (40%)

Memory Bandwidth

Theoretically, the Radeon HD 6950 2GB should perform a lot faster than the GeForce 8800 GTS (G80) 320MB overall. (explain)

Radeon HD 6950 2GB 160000 MB/sec
GeForce 8800 GTS (G80) 320MB 63360 MB/sec
Difference: 96640 (153%)

Texel Rate

The Radeon HD 6950 2GB is much (approximately 186%) better at anisotropic filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

Radeon HD 6950 2GB 70400 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 45776 (186%)

Pixel Rate

The Radeon HD 6950 2GB will be much (more or less 150%) better at anti-aliasing than the GeForce 8800 GTS (G80) 320MB, and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon HD 6950 2GB 25600 Mpixels/sec
GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
Difference: 15340 (150%)

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 GTS (G80) 320MB

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 GTS (G80) 320MB Radeon HD 6950 2GB
Manufacturer nVidia AMD
Year Feb 2007 December 2010
Code Name G80 Cayman Pro
Memory 320 MB 2048 MB
Core Speed 513 MHz 800 MHz
Memory Speed 1584 MHz 5000 MHz
Power (Max TDP) 143 watts 200 watts
Bandwidth 63360 MB/sec 160000 MB/sec
Texel Rate 24624 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 96 1408
Texture Mapping Units 48 88
Render Output Units 20 32
Bus Type GDDR3 GDDR5
Bus Width 320-bit 256-bit
Fab Process 90 nm 40 nm
Transistors 681 million 2640 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 320MB

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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