Radeon HD 5850 vs Radeon R9 M375

Intro

Compare that to the Radeon R9 M375, which uses a 28 nm design. AMD has set the core frequency at 1015 MHz. The DDR3 RAM runs at a frequency of 1100 MHz on this particular card. 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

The Radeon HD 5850 should in theory be much faster than the Radeon R9 M375 overall. (explain)

Radeon HD 5850		128000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 92800 (264%)

Texel Rate

The Radeon HD 5850 is much (more or less 29%) faster with regards to AF than the Radeon R9 M375. (explain)

Radeon HD 5850		52200 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 11600 (29%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 5850 is superior to the Radeon R9 M375, by a large margin. (explain)

Radeon HD 5850		23200 Mpixels/sec
Radeon R9 M375		16240 Mpixels/sec
	Difference: 6960 (43%)

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 (counted in MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.