Radeon R9 280X vs Radeon R9 M375X

Intro

Compare that to the Radeon R9 M375X, which features clock speeds of 1015 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 280X should in theory be much better than the Radeon R9 M375X in general. (explain)

Radeon R9 280X		288000 MB/sec
Radeon R9 M375X		72000 MB/sec
	Difference: 216000 (300%)

Texel Rate

The Radeon R9 280X is quite a bit (about 168%) more effective at texture filtering than the Radeon R9 M375X. (explain)

Radeon R9 280X		108800 Mtexels/sec
Radeon R9 M375X		40600 Mtexels/sec
	Difference: 68200 (168%)

Pixel Rate

The Radeon R9 280X should be much (about 67%) faster with regards to anti-aliasing than the Radeon R9 M375X, and also able to handle higher resolutions while still performing well. (explain)

Radeon R9 280X		27200 Mpixels/sec
Radeon R9 M375X		16240 Mpixels/sec
	Difference: 10960 (67%)

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 maximum amount of information (measured in MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.