GeForce GTX 570 vs Radeon HD 5570

Intro

Compare those specs to the Radeon HD 5570, which has GPU clock speed of 650 MHz, and 512 MB of DDR3 RAM running at 900 MHz through a 128-bit bus. It also is made up of 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 5570		43 Watts
GeForce GTX 570		219 Watts
	Difference: 176 Watts (409%)

Memory Bandwidth

The GeForce GTX 570 should in theory be a lot faster than the Radeon HD 5570 overall. (explain)

GeForce GTX 570		152000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 123200 (428%)

Texel Rate

The GeForce GTX 570 should be much (approximately 238%) better at texture filtering than the Radeon HD 5570. (explain)

GeForce GTX 570		43920 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 30920 (238%)

Pixel Rate

The GeForce GTX 570 will be quite a bit (more or less 463%) better at AA than the Radeon HD 5570, and also will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 24080 (463%)

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 max amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, 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 write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 ability to reach the max fill rate.