GeForce 8800 GTS (G92) vs Radeon HD 6770

Intro

Compare all that to the Radeon HD 6770, which has GPU clock speed of 900 MHz, and 512 MB of GDDR5 memory running at 1050 MHz through a 128-bit bus. It also features 800 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the Radeon HD 6770 should be just a bit faster than the GeForce 8800 GTS (G92) overall. (explain)

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

Texel Rate

The GeForce 8800 GTS (G92) is a little bit (about 16%) faster with regards to AF than the Radeon HD 6770. (explain)

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

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 6770 is superior to the GeForce 8800 GTS (G92), by far. (explain)

Radeon HD 6770		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

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.