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GeForce 8800 GTS (G92) vs Radeon HD 5670

Intro

The GeForce 8800 GTS (G92) uses a 65 nm design. nVidia has set the core speed at 650 MHz. The GDDR3 RAM works at a frequency of 970 MHz on this particular model. It features 128 SPUs as well as 64 TAUs and 16 ROPs.

Compare all of that to the Radeon HD 5670, which features core speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 400(80x5) SPUs along with 20 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
GeForce 8800 GTS (G92) 135 Watts
Difference: 74 Watts (121%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5670 is 3% faster than the GeForce 8800 GTS (G92) overall, because of its greater data rate. (explain)

Radeon HD 5670 64000 MB/sec
GeForce 8800 GTS (G92) 62080 MB/sec
Difference: 1920 (3%)

Texel Rate

The GeForce 8800 GTS (G92) is a lot (about 168%) faster with regards to anisotropic filtering than the Radeon HD 5670. (explain)

GeForce 8800 GTS (G92) 41600 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 26100 (168%)

Pixel Rate

The GeForce 8800 GTS (G92) will be a lot (approximately 68%) more effective at FSAA than the Radeon HD 5670, and will be capable of handling higher resolutions while still performing well. (explain)

GeForce 8800 GTS (G92) 10400 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 4200 (68%)

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 (G92)

Amazon.com

Check prices at:

Radeon HD 5670

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 (G92) Radeon HD 5670
Manufacturer nVidia AMD
Year Dec 2007 January 14, 2010
Code Name G92 Redwood XT
Memory 512 MB 1024 MB
Core Speed 650 MHz 775 MHz
Memory Speed 1940 MHz 4000 MHz
Power (Max TDP) 135 watts 61 watts
Bandwidth 62080 MB/sec 64000 MB/sec
Texel Rate 41600 Mtexels/sec 15500 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 6200 Mpixels/sec
Unified Shaders 128 400(80x5)
Texture Mapping Units 64 20
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 627 million
Bus PCIe x16 2.0 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 data (in units of megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G92)

Amazon.com

Check prices at:

Radeon HD 5670

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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