GeForce GTX 460 SE vs Radeon HD 6770

Intro

Compare those specs to the Radeon HD 6770, which features GPU clock speed of 900 MHz, and 512 MB of GDDR5 memory set to run at 1050 MHz through a 128-bit bus. It also is made up of 800 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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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

In theory, the GeForce GTX 460 SE should be quite a bit faster than the Radeon HD 6770 in general. (explain)

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

Texel Rate

The Radeon HD 6770 will be a bit (more or less 15%) faster with regards to AF 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 running with lots of anti-aliasing 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 maximum amount of data (in units of megabytes per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 can be applied in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

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