GeForce GTX 560 vs Radeon R9 M295X

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce GTX 560		150 Watts
	Difference: 25 Watts (20%)

Memory Bandwidth

The Radeon R9 M295X should theoretically perform much faster than the GeForce GTX 560 overall. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce GTX 560		128128 MB/sec
	Difference: 47872 (37%)

Texel Rate

The Radeon R9 M295X will be much (more or less 112%) better at anisotropic filtering than the GeForce GTX 560. (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce GTX 560		45360 Mtexels/sec
	Difference: 50640 (112%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 560 is the winner, but it probably won't make a huge difference. (explain)

GeForce GTX 560		25920 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 1920 (8%)

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 max amount of information (counted in MB per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better 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 maximum number of pixels that the graphics 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 number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.