Radeon HD 6850 vs Radeon R9 M375

Intro

Compare all that to the Radeon R9 M375, which features a clock speed of 1015 MHz and a DDR3 memory speed of 1100 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 6850 should in theory perform quite a bit faster than the Radeon R9 M375 overall. (explain)

Radeon HD 6850		128000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 92800 (264%)

Texel Rate

The Radeon R9 M375 will be a bit (about 9%) more effective at texture filtering than the Radeon HD 6850. (explain)

Radeon R9 M375		40600 Mtexels/sec
Radeon HD 6850		37200 Mtexels/sec
	Difference: 3400 (9%)

Pixel Rate

The Radeon HD 6850 is quite a bit (approximately 53%) more effective at anti-aliasing than the Radeon R9 M375, and also capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 6850		24800 Mpixels/sec
Radeon R9 M375		16240 Mpixels/sec
	Difference: 8560 (53%)

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 (measured in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.