GeForce GTX 560 Ti vs Radeon R9 M390X

Intro

Compare those specs to the Radeon R9 M390X, which has core clock speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X		125 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 45 Watts (36%)

Memory Bandwidth

The Radeon R9 M390X should in theory perform much faster than the GeForce GTX 560 Ti overall. (explain)

Radeon R9 M390X		160000 MB/sec
GeForce GTX 560 Ti		128256 MB/sec
	Difference: 31744 (25%)

Texel Rate

The Radeon R9 M390X is quite a bit (more or less 76%) better at texture filtering than the GeForce GTX 560 Ti. (explain)

Radeon R9 M390X		92544 Mtexels/sec
GeForce GTX 560 Ti		52608 Mtexels/sec
	Difference: 39936 (76%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 560 Ti is a better choice, but not by far. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon R9 M390X		23136 Mpixels/sec
	Difference: 3168 (14%)

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 data (in units of MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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