GeForce GTX 560 Ti 448 vs Radeon R9 M295X

Intro

Compare that to the Radeon R9 M295X, which comes with a clock speed of 750 MHz and a GDDR5 memory frequency of 1375 MHz. It also features a 256-bit bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 85 Watts (68%)

Memory Bandwidth

In theory, the Radeon R9 M295X should be 22% quicker than the GeForce GTX 560 Ti 448 in general, because of its greater bandwidth. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 32000 (22%)

Texel Rate

The Radeon R9 M295X should be much (approximately 134%) better at anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 55008 (134%)

Pixel Rate

The GeForce GTX 560 Ti 448 should be quite a bit (more or less 22%) more effective at full screen anti-aliasing than the Radeon R9 M295X, and also will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 5280 (22%)

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 (in units of MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.