Geforce GTX 690 vs Radeon R9 M375X

Intro

Compare those specs to the Radeon R9 M375X, which features a GPU core clock speed of 1015 MHz, and 4096 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Geforce GTX 690 should theoretically be a lot better than the Radeon R9 M375X overall. (explain)

Geforce GTX 690		384512 MB/sec
Radeon R9 M375X		72000 MB/sec
	Difference: 312512 (434%)

Texel Rate

The Geforce GTX 690 should be a lot (approximately 477%) faster with regards to anisotropic filtering than the Radeon R9 M375X. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon R9 M375X		40600 Mtexels/sec
	Difference: 193640 (477%)

Pixel Rate

The Geforce GTX 690 should be a lot (about 261%) better at AA than the Radeon R9 M375X, and also will be able to handle higher resolutions better. (explain)

Geforce GTX 690		58560 Mpixels/sec
Radeon R9 M375X		16240 Mpixels/sec
	Difference: 42320 (261%)

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 largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 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 higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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