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GeForce 8800 GTS (G80) 320MB vs Radeon HD 6750 1GB

Intro

The GeForce 8800 GTS (G80) 320MB has clock speeds of 513 MHz on the GPU, and 792 MHz on the 320 MB of GDDR3 RAM. It features 96 SPUs along with 48 TAUs and 20 Rasterization Operator Units.

Compare those specs to the Radeon HD 6750 1GB, which comes with a GPU core clock speed of 725 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is made up of 720 Stream Processors, 36 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB 86 Watts
GeForce 8800 GTS (G80) 320MB 143 Watts
Difference: 57 Watts (66%)

Memory Bandwidth

The Radeon HD 6750 1GB, in theory, should perform a bit faster than the GeForce 8800 GTS (G80) 320MB in general. (explain)

Radeon HD 6750 1GB 64000 MB/sec
GeForce 8800 GTS (G80) 320MB 63360 MB/sec
Difference: 640 (1%)

Texel Rate

The Radeon HD 6750 1GB is a small bit (more or less 6%) faster with regards to anisotropic filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

Radeon HD 6750 1GB 26100 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 1476 (6%)

Pixel Rate

The Radeon HD 6750 1GB should be a small bit (more or less 13%) faster with regards to anti-aliasing than the GeForce 8800 GTS (G80) 320MB, and also able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 6750 1GB 11600 Mpixels/sec
GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
Difference: 1340 (13%)

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) 320MB

Amazon.com

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Radeon HD 6750 1GB

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 GTS (G80) 320MB Radeon HD 6750 1GB
Manufacturer nVidia AMD
Year Feb 2007 January 2011
Code Name G80 Juniper Pro
Memory 320 MB 1024 MB
Core Speed 513 MHz 725 MHz
Memory Speed 1584 MHz 4000 MHz
Power (Max TDP) 143 watts 86 watts
Bandwidth 63360 MB/sec 64000 MB/sec
Texel Rate 24624 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 96 720
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 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that are processed 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 320MB

Amazon.com

Check prices at:

Radeon HD 6750 1GB

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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