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GeForce 8800 GTS (G80) 320MB vs Radeon HD 7750

Intro

The GeForce 8800 GTS (G80) 320MB uses a 90 nm design. nVidia has set the core speed at 513 MHz. The GDDR3 memory is set to run at a frequency of 792 MHz on this particular model. It features 96 SPUs as well as 48 Texture Address Units and 20 Rasterization Operator Units.

Compare all of that to the Radeon HD 7750, which comes with core speeds of 800 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 memory. It features 512 SPUs along with 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750 55 Watts
GeForce 8800 GTS (G80) 320MB 143 Watts
Difference: 88 Watts (160%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7750 should be 14% faster than the GeForce 8800 GTS (G80) 320MB overall, due to its greater bandwidth. (explain)

Radeon HD 7750 72000 MB/sec
GeForce 8800 GTS (G80) 320MB 63360 MB/sec
Difference: 8640 (14%)

Texel Rate

The Radeon HD 7750 should be a small bit (more or less 4%) better at AF than the GeForce 8800 GTS (G80) 320MB. (explain)

Radeon HD 7750 25600 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 976 (4%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 7750 is superior to the GeForce 8800 GTS (G80) 320MB, by far. (explain)

Radeon HD 7750 12800 Mpixels/sec
GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
Difference: 2540 (25%)

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

Check prices at:

Radeon HD 7750

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 7750
Manufacturer nVidia AMD
Year Feb 2007 February 2012
Code Name G80 Cape Verde Pro
Memory 320 MB 1024 MB
Core Speed 513 MHz 800 MHz
Memory Speed 1584 MHz 4500 MHz
Power (Max TDP) 143 watts 55 watts
Bandwidth 63360 MB/sec 72000 MB/sec
Texel Rate 24624 Mtexels/sec 25600 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 96 512
Texture Mapping Units 48 32
Render Output Units 20 16
Bus Type GDDR3 GDDR5
Bus Width 320-bit 128-bit
Fab Process 90 nm 28 nm
Transistors 681 million 1500 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.1
OpenGL Version OpenGL 3.0 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 maximum amount of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 320MB

Amazon.com

Check prices at:

Radeon HD 7750

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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