GeForce GTX 460 SE vs Radeon HD 5670

Intro

Compare all of that to the Radeon HD 5670, which comes with GPU core speed of 775 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also features 400(80x5) SPUs, 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 should be a lot faster than the Radeon HD 5670 overall. (explain)

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

Texel Rate

The GeForce GTX 460 SE is quite a bit (more or less 101%) better at texture filtering than the Radeon HD 5670. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 460 SE is the winner, by a large margin. (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: Bandwidth is the max amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses 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 texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.