Radeon R9 280 vs Radeon R9 M375

Intro

Compare those specifications to the Radeon R9 M375, which uses a 28 nm design. AMD has set the core speed at 1015 MHz. The DDR3 memory runs at a speed of 1100 MHz on this particular 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

As far as performance goes, the Radeon R9 280 should in theory be a lot better than the Radeon R9 M375 overall. (explain)

Radeon R9 280		240000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 204800 (582%)

Texel Rate

The Radeon R9 280 should be much (approximately 157%) better at texture filtering than the Radeon R9 M375. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 63896 (157%)

Pixel Rate

The Radeon R9 280 will be quite a bit (about 84%) better at anti-aliasing than the Radeon R9 M375, and will be capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon R9 M375		16240 Mpixels/sec
	Difference: 13616 (84%)

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 maximum amount of information (counted in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total texture units by the core 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.