Radeon HD 5830 vs Radeon R9 M375

Intro

Compare those specs to the Radeon R9 M375, which features a core clock speed of 1015 MHz and a DDR3 memory speed of 1100 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 should be quite a bit faster than the Radeon R9 M375 in general. (explain)

Radeon HD 5830		128000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 92800 (264%)

Texel Rate

The Radeon HD 5830 should be a bit (approximately 10%) faster with regards to anisotropic filtering than the Radeon R9 M375. (explain)

Radeon HD 5830		44800 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 4200 (10%)

Pixel Rate

The Radeon R9 M375 is much (approximately 27%) faster with regards to full screen anti-aliasing than the Radeon HD 5830, and will be capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 M375		16240 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 3440 (27%)

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 (in units of MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.