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

Intro

The GeForce 8800 GTS (G80) 640MB has a core clock speed of 513 MHz and a GDDR3 memory speed of 792 MHz. It also features a 320-bit bus, and uses a 90 nm design. It is made up of 96 SPUs, 48 Texture Address Units, and 20 Raster Operation Units.

Compare all that to the Radeon HD 5750 512MB, which has a core clock frequency of 700 MHz and a GDDR5 memory frequency of 1150 MHz. It also features a 128-bit bus, and uses a 40 nm design. It is comprised of 720(144x5) SPUs, 36 Texture Address Units, and 16 Raster Operation Units.

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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

The Radeon HD 5750 512MB should in theory be just a bit faster than the GeForce 8800 GTS (G80) 640MB in general. (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 is a little bit (approximately 2%) better at anisotropic 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 running with a high screen resolution 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: Memory bandwidth is the max amount of data (in units of MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach 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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