GeForce GTX 460 SE vs Radeon HD 6770

Intro

Compare that to the Radeon HD 6770, which features GPU clock speed of 900 MHz, and 512 MB of GDDR5 RAM set to run at 1050 MHz through a 128-bit bus. It also features 800 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 42 Watts (39%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 SE should be much faster than the Radeon HD 6770 overall. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 41600 (62%)

Texel Rate

The Radeon HD 6770 is a small bit (more or less 15%) more effective at texture filtering than the GeForce GTX 460 SE. (explain)

Radeon HD 6770		36000 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 4800 (15%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 460 SE is superior to the Radeon HD 6770, by far. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 6400 (44%)

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 largest amount of data (counted in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount 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 calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.