GeForce GTX 460 vs Radeon R9 M385X

Intro

Compare all that to the Radeon R9 M385X, which comes with a clock speed of 1100 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is made up of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M385X should in theory be just a bit better than the GeForce GTX 460 overall. (explain)

Radeon R9 M385X		96000 MB/sec
GeForce GTX 460		86400 MB/sec
	Difference: 9600 (11%)

Texel Rate

The Radeon R9 M385X will be much (approximately 63%) faster with regards to texture filtering than the GeForce GTX 460. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce GTX 460		37800 Mtexels/sec
	Difference: 23800 (63%)

Pixel Rate

The Radeon R9 M385X should be a small bit (approximately 9%) more effective at AA than the GeForce GTX 460, and should be able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 M385X		17600 Mpixels/sec
GeForce GTX 460		16200 Mpixels/sec
	Difference: 1400 (9%)

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 (in units of MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at 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 write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 max fill rate.