Radeon R9 M295X vs Radeon R9 M375X

Intro

Compare those specs to the Radeon R9 M375X, which uses a 28 nm design. AMD has set the core frequency at 1015 MHz. The GDDR5 memory works at a speed of 1125 MHz on this specific card. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M295X should perform much faster than the Radeon R9 M375X overall. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon R9 M375X		72000 MB/sec
	Difference: 104000 (144%)

Texel Rate

The Radeon R9 M295X is much (about 136%) more effective at AF than the Radeon R9 M375X. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon R9 M375X		40600 Mtexels/sec
	Difference: 55400 (136%)

Pixel Rate

The Radeon R9 M295X will be a lot (more or less 48%) faster with regards to AA than the Radeon R9 M375X, and also should be capable of handling higher resolutions more effectively. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon R9 M375X		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: Bandwidth is the largest amount of data (in units of MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high 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 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.