GeForce GTX 980 vs Radeon R9 M375

Intro

Compare those specs to the Radeon R9 M375, which has core clock speeds of 1015 MHz on the GPU, and 1100 MHz on the 4096 MB of DDR3 memory. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 980 should in theory be quite a bit superior to the Radeon R9 M375 in general. (explain)

GeForce GTX 980		224000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 188800 (536%)

Texel Rate

The GeForce GTX 980 is quite a bit (about 255%) more effective at anisotropic filtering than the Radeon R9 M375. (explain)

GeForce GTX 980		144128 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 103528 (255%)

Pixel Rate

The GeForce GTX 980 is quite a bit (about 344%) more effective at full screen anti-aliasing than the Radeon R9 M375, and should be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon R9 M375		16240 Mpixels/sec
	Difference: 55824 (344%)

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 transported over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher 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 number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.