GeForce GTX 560 Ti vs Radeon R9 M275X

Intro

Compare those specs to the Radeon R9 M275X, which comes with a clock frequency of 900 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X		50 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 120 Watts (240%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti will be 78% faster than the Radeon R9 M275X overall, due to its greater data rate. (explain)

GeForce GTX 560 Ti		128256 MB/sec
Radeon R9 M275X		72000 MB/sec
	Difference: 56256 (78%)

Texel Rate

The GeForce GTX 560 Ti should be a lot (more or less 46%) more effective at AF than the Radeon R9 M275X. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon R9 M275X		36000 Mtexels/sec
	Difference: 16608 (46%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 560 Ti is the winner, by far. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon R9 M275X		14400 Mpixels/sec
	Difference: 11904 (83%)

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 maximum amount of information (measured in MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.