GeForce GTX 470 vs Radeon HD 5570

Intro

Compare all that to the Radeon HD 5570, which comes with GPU clock speed of 650 MHz, and 512 MB of DDR3 RAM running at 900 MHz through a 128-bit bus. It also is comprised 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 470		215 Watts
	Difference: 172 Watts (400%)

Memory Bandwidth

In theory, the GeForce GTX 470 should perform quite a bit faster than the Radeon HD 5570 in general. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 105120 (365%)

Texel Rate

The GeForce GTX 470 is quite a bit (approximately 161%) better at texture filtering than the Radeon HD 5570. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 20992 (161%)

Pixel Rate

The GeForce GTX 470 is a lot (approximately 367%) more effective at FSAA than the Radeon HD 5570, and will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 19080 (367%)

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 largest amount of data (measured in MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its 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 clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.