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GeForce 8800 GTS (G92) vs Radeon HD 6770 1GB

Intro

The GeForce 8800 GTS (G92) comes with a GPU core clock speed of 650 MHz, and the 512 MB of GDDR3 memory runs at 970 MHz through a 256-bit bus. It also is made up of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

Compare that to the Radeon HD 6770 1GB, which has GPU clock speed of 900 MHz, and 1024 MB of GDDR5 RAM running at 1050 MHz through a 128-bit bus. It also is comprised of 800 SPUs, 40 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 1GB 108 Watts
GeForce 8800 GTS (G92) 135 Watts
Difference: 27 Watts (25%)

Memory Bandwidth

The Radeon HD 6770 1GB should theoretically perform a little bit faster than the GeForce 8800 GTS (G92) in general. (explain)

Radeon HD 6770 1GB 67200 MB/sec
GeForce 8800 GTS (G92) 62080 MB/sec
Difference: 5120 (8%)

Texel Rate

The GeForce 8800 GTS (G92) is just a bit (approximately 16%) more effective at AF than the Radeon HD 6770 1GB. (explain)

GeForce 8800 GTS (G92) 41600 Mtexels/sec
Radeon HD 6770 1GB 36000 Mtexels/sec
Difference: 5600 (16%)

Pixel Rate

The Radeon HD 6770 1GB should be much (more or less 38%) better at anti-aliasing than the GeForce 8800 GTS (G92), and able to handle higher resolutions while still performing well. (explain)

Radeon HD 6770 1GB 14400 Mpixels/sec
GeForce 8800 GTS (G92) 10400 Mpixels/sec
Difference: 4000 (38%)

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

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Radeon HD 6770 1GB

Amazon.com

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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 6770 1GB
Manufacturer nVidia AMD
Year Dec 2007 January 2011
Code Name G92 Juniper XT
Memory 512 MB 1024 MB
Core Speed 650 MHz 900 MHz
Memory Speed 1940 MHz 4200 MHz
Power (Max TDP) 135 watts 108 watts
Bandwidth 62080 MB/sec 67200 MB/sec
Texel Rate 41600 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 128 800
Texture Mapping Units 64 40
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-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 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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 memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G92)

Amazon.com

Check prices at:

Radeon HD 6770 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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