GeForce GTX 590 vs Radeon R9 M385X

Intro

Compare those specifications to the Radeon R9 M385X, which has a core clock frequency of 1100 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 590 should be much faster than the Radeon R9 M385X in general. (explain)

GeForce GTX 590		328320 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 232320 (242%)

Texel Rate

The GeForce GTX 590 is much (about 26%) faster with regards to texture filtering than the Radeon R9 M385X. (explain)

GeForce GTX 590		77696 Mtexels/sec
Radeon R9 M385X		61600 Mtexels/sec
	Difference: 16096 (26%)

Pixel Rate

The GeForce GTX 590 should be much (about 231%) more effective at AA than the Radeon R9 M385X, and should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 590		58272 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 40672 (231%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once 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 applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.