GeForce GTX 460 SE vs Radeon HD 5570

Intro

Compare those specifications to the Radeon HD 5570, which features GPU core speed of 650 MHz, and 512 MB of DDR3 memory running at 900 MHz through a 128-bit bus. It also is comprised of 400(80x5) Stream Processors, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 107 Watts (249%)

Memory Bandwidth

In theory, the GeForce GTX 460 SE will be 278% quicker than the Radeon HD 5570 overall, because of its greater bandwidth. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 80000 (278%)

Texel Rate

The GeForce GTX 460 SE will be much (about 140%) better at anisotropic filtering than the Radeon HD 5570. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 18200 (140%)

Pixel Rate

The GeForce GTX 460 SE is quite a bit (about 300%) faster with regards to FSAA than the Radeon HD 5570, and also should be able to handle higher screen resolutions better. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 15600 (300%)

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 data (measured in megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, the result should 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can 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 Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.