Radeon R9 M365X vs Radeon RX 580

Intro

Compare that to the Radeon RX 580, which uses a 14 nm design. AMD has clocked the core frequency at 1257 MHz. The GDDR5 memory is set to run at a speed of 2000 MHz on this particular card. It features 2304 SPUs as well as 144 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon RX 580 should theoretically be much superior to the Radeon R9 M365X overall. (explain)

Radeon RX 580		262144 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 190144 (264%)

Texel Rate

The Radeon RX 580 will be a lot (approximately 389%) faster with regards to AF than the Radeon R9 M365X. (explain)

Radeon RX 580		181008 Mtexels/sec
Radeon R9 M365X		37000 Mtexels/sec
	Difference: 144008 (389%)

Pixel Rate

The Radeon RX 580 should be much (more or less 172%) better at full screen anti-aliasing than the Radeon R9 M365X, and should be capable of handling higher resolutions better. (explain)

Radeon RX 580		40224 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 25424 (172%)

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 (measured in megabytes per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high 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 texture units of the card by the core clock speed of the chip. The higher this number, 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 most pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.