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GeForce 8800 GTS (G80) 320MB vs Radeon HD 5750 1GB

Intro

The GeForce 8800 GTS (G80) 320MB makes use of a 90 nm design. nVidia has set the core frequency at 513 MHz. The GDDR3 memory works at a speed of 792 MHz on this specific card. It features 96 SPUs along with 48 Texture Address Units and 20 ROPs.

Compare those specs to the Radeon HD 5750 1GB, which has GPU core speed of 700 MHz, and 1024 MB of GDDR5 RAM running at 1150 MHz through a 128-bit bus. It also is made up of 720(144x5) Stream Processors, 36 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB 86 Watts
GeForce 8800 GTS (G80) 320MB 143 Watts
Difference: 57 Watts (66%)

Memory Bandwidth

In theory, the Radeon HD 5750 1GB should be 16% quicker than the GeForce 8800 GTS (G80) 320MB in general, because of its higher bandwidth. (explain)

Radeon HD 5750 1GB 73600 MB/sec
GeForce 8800 GTS (G80) 320MB 63360 MB/sec
Difference: 10240 (16%)

Texel Rate

The Radeon HD 5750 1GB is a little bit (approximately 2%) faster with regards to anisotropic filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

Radeon HD 5750 1GB 25200 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 576 (2%)

Pixel Rate

The Radeon HD 5750 1GB will be a bit (about 9%) better at anti-aliasing than the GeForce 8800 GTS (G80) 320MB, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5750 1GB 11200 Mpixels/sec
GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
Difference: 940 (9%)

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 5750 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 5750 1GB
Manufacturer nVidia AMD
Year Feb 2007 October 13, 2009
Code Name G80 Juniper LE
Memory 320 MB 1024 MB
Core Speed 513 MHz 700 MHz
Memory Speed 1584 MHz 4600 MHz
Power (Max TDP) 143 watts 86 watts
Bandwidth 63360 MB/sec 73600 MB/sec
Texel Rate 24624 Mtexels/sec 25200 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 11200 Mpixels/sec
Unified Shaders 96 720(144x5)
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 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 across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core clock 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 a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 320MB

Amazon.com

Check prices at:

Radeon HD 5750 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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