GeForce GTX 560 vs Radeon R9 M385X

Intro

Compare those specifications to the Radeon R9 M385X, which makes use of a 28 nm design. AMD has set the core frequency at 1100 MHz. The GDDR5 RAM runs at a speed of 1500 MHz on this specific card. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce GTX 560 should be quite a bit faster than the Radeon R9 M385X overall. (explain)

GeForce GTX 560		128128 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 32128 (33%)

Texel Rate

The Radeon R9 M385X will be quite a bit (more or less 36%) better at texture filtering than the GeForce GTX 560. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce GTX 560		45360 Mtexels/sec
	Difference: 16240 (36%)

Pixel Rate

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

GeForce GTX 560		25920 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 8320 (47%)

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 data (counted in MB per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs 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 output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.