Radeon R9 280 vs Radeon R9 M365X

Intro

Compare all that to the Radeon R9 M365X, which comes with core speeds of 925 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 280 should in theory perform quite a bit faster than the Radeon R9 M365X overall. (explain)

Radeon R9 280		240000 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 168000 (233%)

Texel Rate

The Radeon R9 280 is a lot (approximately 182%) more effective at AF than the Radeon R9 M365X. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon R9 M365X		37000 Mtexels/sec
	Difference: 67496 (182%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 280 is the winner, by far. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 15056 (102%)

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 maximum amount of information (counted in MB per second) that can be transported past the external memory interface in a second. It 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 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling 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 that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.