GeForce GTX 560 Ti 448 vs Radeon HD 5570

Intro

Compare that to the Radeon HD 5570, which features GPU core speed of 650 MHz, and 512 MB of DDR3 memory set to run at 900 MHz through a 128-bit bus. It also is comprised of 400(80x5) Stream Processors, 20 Texture Address Units, 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 560 Ti 448		210 Watts
	Difference: 167 Watts (388%)

Memory Bandwidth

In theory, the GeForce GTX 560 Ti 448 should perform quite a bit faster than the Radeon HD 5570 overall. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 115200 (400%)

Texel Rate

The GeForce GTX 560 Ti 448 should be a lot (about 215%) faster with regards to anisotropic filtering than the Radeon HD 5570. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 27992 (215%)

Pixel Rate

The GeForce GTX 560 Ti 448 should be much (about 463%) more effective at full screen anti-aliasing than the Radeon HD 5570, and also capable of handling higher resolutions better. (explain)

GeForce GTX 560 Ti 448		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 largest amount of data (measured in MB per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units by the core 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.