GeForce GTX 460 SE vs Radeon HD 6770

Intro

Compare those specs to the Radeon HD 6770, which features a GPU core clock speed of 900 MHz, and 512 MB of GDDR5 RAM running at 1050 MHz through a 128-bit bus. It also features 800 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

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

Theoretically speaking, the GeForce GTX 460 SE should perform a lot 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 should be a little bit (about 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

The GeForce GTX 460 SE will be much (about 44%) better at full screen anti-aliasing than the Radeon HD 6770, and also should be able to handle higher resolutions while still performing well. (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 (counted in megabytes per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling 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 record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.