Radeon R7 250 vs Radeon R9 M375

Intro

Compare those specifications to the Radeon R9 M375, which makes use of a 28 nm design. AMD has set the core speed at 1015 MHz. The DDR3 memory works at a speed of 1100 MHz on this model. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 250 should perform quite a bit faster than the Radeon R9 M375 overall. (explain)

Radeon R7 250		73600 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 38400 (109%)

Texel Rate

The Radeon R9 M375 will be quite a bit (about 69%) better at AF than the Radeon R7 250. (explain)

Radeon R9 M375		40600 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 16600 (69%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 M375 is superior to the Radeon R7 250, by a large margin. (explain)

Radeon R9 M375		16240 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 8240 (103%)

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 megabytes per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If 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 texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. 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 is also dependant 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.