GeForce GTX 460 SE vs Radeon HD 5670

Intro

Compare all of that to the Radeon HD 5670, which comes with clock speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 400(80x5) SPUs as well as 20 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 89 Watts (146%)

Memory Bandwidth

In theory, the GeForce GTX 460 SE is 70% quicker than the Radeon HD 5670 overall, due to its greater data rate. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 44800 (70%)

Texel Rate

The GeForce GTX 460 SE will be much (about 101%) faster with regards to AF than the Radeon HD 5670. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 15700 (101%)

Pixel Rate

The GeForce GTX 460 SE will be quite a bit (approximately 235%) faster with regards to full screen anti-aliasing than the Radeon HD 5670, and also able to handle higher resolutions better. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 14600 (235%)

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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.