GeForce GTX 280 vs Radeon R9 M375X

Intro

Compare those specs to the Radeon R9 M375X, which features a core clock speed of 1015 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 280 should be 97% quicker than the Radeon R9 M375X overall, because of its higher data rate. (explain)

GeForce GTX 280		141696 MB/sec
Radeon R9 M375X		72000 MB/sec
	Difference: 69696 (97%)

Texel Rate

The GeForce GTX 280 will be a bit (about 19%) faster with regards to anisotropic filtering than the Radeon R9 M375X. (explain)

GeForce GTX 280		48160 Mtexels/sec
Radeon R9 M375X		40600 Mtexels/sec
	Difference: 7560 (19%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 280 is the winner, though only just barely. (explain)

GeForce GTX 280		19264 Mpixels/sec
Radeon R9 M375X		16240 Mpixels/sec
	Difference: 3024 (19%)

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 MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 can be applied per second. This number is calculated by multiplying the total amount 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 applied per second.

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