GeForce GTX 850M vs Radeon R9 M375

Intro

Compare all of that to the Radeon R9 M375, which has GPU clock speed of 1015 MHz, and 4096 MB of DDR3 RAM running at 1100 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M375, in theory, should perform just a bit faster than the GeForce GTX 850M overall. (explain)

Radeon R9 M375		35200 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 3200 (10%)

Texel Rate

The Radeon R9 M375 should be a bit (about 16%) more effective at texture filtering than the GeForce GTX 850M. (explain)

Radeon R9 M375		40600 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 5560 (16%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 M375 is a better choice, though only just barely. (explain)

Radeon R9 M375		16240 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 2224 (16%)

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 max amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.