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GeForce 8800 GTS (G80) 640MB vs Radeon HD 5750 512MB

Intro

The GeForce 8800 GTS (G80) 640MB comes with core clock speeds of 513 MHz on the GPU, and 792 MHz on the 640 MB of GDDR3 RAM. It features 96 SPUs as well as 48 TAUs and 20 ROPs.

Compare those specifications to the Radeon HD 5750 512MB, which has GPU core speed of 700 MHz, and 512 MB of GDDR5 memory set to run at 1150 MHz through a 128-bit bus. It also is made up of 720(144x5) Stream Processors, 36 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB 86 Watts
GeForce 8800 GTS (G80) 640MB 143 Watts
Difference: 57 Watts (66%)

Memory Bandwidth

In theory, the Radeon HD 5750 512MB will be 16% quicker than the GeForce 8800 GTS (G80) 640MB overall, due to its higher bandwidth. (explain)

Radeon HD 5750 512MB 73600 MB/sec
GeForce 8800 GTS (G80) 640MB 63360 MB/sec
Difference: 10240 (16%)

Texel Rate

The Radeon HD 5750 512MB will be a bit (approximately 2%) better at texture filtering than the GeForce 8800 GTS (G80) 640MB. (explain)

Radeon HD 5750 512MB 25200 Mtexels/sec
GeForce 8800 GTS (G80) 640MB 24624 Mtexels/sec
Difference: 576 (2%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 5750 512MB is the winner, though not by far. (explain)

Radeon HD 5750 512MB 11200 Mpixels/sec
GeForce 8800 GTS (G80) 640MB 10260 Mpixels/sec
Difference: 940 (9%)

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) 640MB

Amazon.com

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Radeon HD 5750 512MB

Amazon.com

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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) 640MB Radeon HD 5750 512MB
Manufacturer nVidia AMD
Year Nov 2006 (640) October 13, 2009
Code Name G80 Juniper LE
Memory 640 MB 512 MB
Core Speed 513 MHz 700 MHz
Memory Speed 1584 MHz 4600 MHz
Power (Max TDP) 143 watts 86 watts
Bandwidth 63360 MB/sec 73600 MB/sec
Texel Rate 24624 Mtexels/sec 25200 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 11200 Mpixels/sec
Unified Shaders 96 720(144x5)
Texture Mapping Units 48 36
Render Output Units 20 16
Bus Type GDDR3 GDDR5
Bus Width 320-bit 128-bit
Fab Process 90 nm 40 nm
Transistors 681 million 1040 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 640MB

Amazon.com

Check prices at:

Radeon HD 5750 512MB

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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