Radeon R9 M295X vs Radeon R9 M375

Intro

Compare those specs to the Radeon R9 M375, which features core clock speeds of 1015 MHz on the GPU, and 1100 MHz on the 4096 MB of DDR3 RAM. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M295X should theoretically be a lot better than the Radeon R9 M375 in general. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 140800 (400%)

Texel Rate

The Radeon R9 M295X will be quite a bit (about 136%) faster with regards to texture filtering than the Radeon R9 M375. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 55400 (136%)

Pixel Rate

The Radeon R9 M295X should be much (more or less 48%) faster with regards to FSAA than the Radeon R9 M375, and capable of handling higher resolutions while still performing well. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon R9 M375		16240 Mpixels/sec
	Difference: 7760 (48%)

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 max amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.