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GeForce 8800 GT 512MB vs Radeon HD 6750

Intro

The GeForce 8800 GT 512MB comes with a core clock frequency of 600 MHz and a GDDR3 memory speed of 900 MHz. It also makes use of a 256-bit bus, and makes use of a 65 nm design. It is comprised of 112 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Compare those specs to the Radeon HD 6750, which features a clock frequency of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It features 720 SPUs, 36 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 86 Watts
GeForce 8800 GT 512MB 105 Watts
Difference: 19 Watts (22%)

Memory Bandwidth

Performance-wise, the Radeon HD 6750 should theoretically be a bit better than the GeForce 8800 GT 512MB in general. (explain)

Radeon HD 6750 64000 MB/sec
GeForce 8800 GT 512MB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce 8800 GT 512MB should be quite a bit (approximately 29%) better at AF than the Radeon HD 6750. (explain)

GeForce 8800 GT 512MB 33600 Mtexels/sec
Radeon HD 6750 26100 Mtexels/sec
Difference: 7500 (29%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 6750 is a better choice, by far. (explain)

Radeon HD 6750 11600 Mpixels/sec
GeForce 8800 GT 512MB 9600 Mpixels/sec
Difference: 2000 (21%)

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 GT 512MB

Amazon.com

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Radeon HD 6750

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 GT 512MB Radeon HD 6750
Manufacturer nVidia AMD
Year Oct 2007 January 2011
Code Name G92 Juniper Pro
Memory 512 MB 512 MB
Core Speed 600 MHz 725 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 105 watts 86 watts
Bandwidth 57600 MB/sec 64000 MB/sec
Texel Rate 33600 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 112 720
Texture Mapping Units 56 36
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 1040 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.0

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 can be applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount 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 Raster Operations Pipelines by the clock 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce 8800 GT 512MB

Amazon.com

Check prices at:

Radeon HD 6750

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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