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GeForce 8800 GS vs Radeon HD 6750

Intro

The GeForce 8800 GS comes with a GPU clock speed of 550 MHz, and the 384 MB of GDDR3 RAM runs at 800 MHz through a 192-bit bus. It also features 96 SPUs, 48 TAUs, and 12 ROPs.

Compare those specifications to the Radeon HD 6750, which has a clock frequency of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It is made up of 720 SPUs, 36 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 86 Watts
GeForce 8800 GS 105 Watts
Difference: 19 Watts (22%)

Memory Bandwidth

Theoretically, the Radeon HD 6750 should be much faster than the GeForce 8800 GS in general. (explain)

Radeon HD 6750 64000 MB/sec
GeForce 8800 GS 38400 MB/sec
Difference: 25600 (67%)

Texel Rate

The GeForce 8800 GS should be a small bit (about 1%) better at texture filtering than the Radeon HD 6750. (explain)

GeForce 8800 GS 26400 Mtexels/sec
Radeon HD 6750 26100 Mtexels/sec
Difference: 300 (1%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6750 is the winner, and very much so. (explain)

Radeon HD 6750 11600 Mpixels/sec
GeForce 8800 GS 6600 Mpixels/sec
Difference: 5000 (76%)

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 GS

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.

Specifications

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Model GeForce 8800 GS Radeon HD 6750
Manufacturer nVidia AMD
Year Jan 2008 January 2011
Code Name G92 Juniper Pro
Memory 384 MB 512 MB
Core Speed 550 MHz 725 MHz
Memory Speed 1600 MHz 4000 MHz
Power (Max TDP) 105 watts 86 watts
Bandwidth 38400 MB/sec 64000 MB/sec
Texel Rate 26400 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 96 720
Texture Mapping Units 48 36
Render Output Units 12 16
Bus Type GDDR3 GDDR5
Bus Width 192-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 data (measured in megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number 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 rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GS

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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