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GeForce 8800 GTX vs Radeon HD 5750 512MB

Intro

The GeForce 8800 GTX has a core clock frequency of 575 MHz and a GDDR3 memory frequency of 900 MHz. It also uses a 384-bit memory bus, and uses a 90 nm design. It features 128 SPUs, 64 Texture Address Units, and 24 ROPs.

Compare those specs to the Radeon HD 5750 512MB, which comes with clock speeds of 700 MHz on the GPU, and 1150 MHz on the 512 MB of GDDR5 RAM. It features 720(144x5) SPUs as well as 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 GTX 155 Watts
Difference: 69 Watts (80%)

Memory Bandwidth

Performance-wise, the GeForce 8800 GTX should in theory be just a bit better than the Radeon HD 5750 512MB overall. (explain)

GeForce 8800 GTX 86400 MB/sec
Radeon HD 5750 512MB 73600 MB/sec
Difference: 12800 (17%)

Texel Rate

The GeForce 8800 GTX will be a lot (approximately 46%) better at anisotropic filtering than the Radeon HD 5750 512MB. (explain)

GeForce 8800 GTX 36800 Mtexels/sec
Radeon HD 5750 512MB 25200 Mtexels/sec
Difference: 11600 (46%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 8800 GTX is the winner, by far. (explain)

GeForce 8800 GTX 13800 Mpixels/sec
Radeon HD 5750 512MB 11200 Mpixels/sec
Difference: 2600 (23%)

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 GTX

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 GTX Radeon HD 5750 512MB
Manufacturer nVidia AMD
Year Nov 2006 October 13, 2009
Code Name G80 Juniper LE
Memory 768 MB 512 MB
Core Speed 575 MHz 700 MHz
Memory Speed 1800 MHz 4600 MHz
Power (Max TDP) 155 watts 86 watts
Bandwidth 86400 MB/sec 73600 MB/sec
Texel Rate 36800 Mtexels/sec 25200 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 11200 Mpixels/sec
Unified Shaders 128 720(144x5)
Texture Mapping Units 64 36
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 384-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 largest amount of information (counted in MB per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few 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

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GeForce 8800 GTX

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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