Radeon HD 5870 vs Radeon R9 M375

Intro

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

As far as performance goes, the Radeon HD 5870 should theoretically be quite a bit superior to the Radeon R9 M375 overall. (explain)

Radeon HD 5870		153600 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 118400 (336%)

Texel Rate

The Radeon HD 5870 should be much (about 67%) faster with regards to AF than the Radeon R9 M375. (explain)

Radeon HD 5870		68000 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 27400 (67%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 5870 is superior to the Radeon R9 M375, and very much so. (explain)

Radeon HD 5870		27200 Mpixels/sec
Radeon R9 M375		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 (counted in megabytes per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 most pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few 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.