Radeon HD 5850 vs Radeon R9 M375

Intro

Compare those specs to the Radeon R9 M375, which features GPU core speed of 1015 MHz, and 4096 MB of DDR3 memory set to run at 1100 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 5850 should in theory perform quite a bit 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 (approximately 29%) better at texture filtering than the Radeon R9 M375. (explain)

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

Pixel Rate

The Radeon HD 5850 should be quite a bit (more or less 43%) better at anti-aliasing than the Radeon R9 M375, and also will be capable of handling higher resolutions more effectively. (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 largest amount of data (counted in megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 chip can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. 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 is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.