GeForce GTX 560 vs Radeon R9 M295X

Intro

Compare all that to the Radeon R9 M295X, which comes with GPU core speed of 750 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, 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

Performance-wise, the Radeon R9 M295X should in theory be a lot better than the GeForce GTX 560 in general. (explain)

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

Texel Rate

The Radeon R9 M295X will be a lot (about 112%) more effective 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 running with a high screen resolution is important to you, then the GeForce GTX 560 is a better choice, not by a very large margin though. (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 largest amount of information (measured in MB per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses 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 number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.