Radeon R9 M385X vs Radeon RX 480

Intro

Compare those specs to the Radeon RX 480, which features a GPU core clock speed of 1120 MHz, and 8192 MB of GDDR5 memory running at 2000 MHz through a 256-bit bus. It also features 2304 SPUs, 144 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon RX 480 should in theory be much superior to the Radeon R9 M385X in general. (explain)

Radeon RX 480		262144 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 166144 (173%)

Texel Rate

The Radeon RX 480 is a lot (approximately 162%) more effective at AF than the Radeon R9 M385X. (explain)

Radeon RX 480		161280 Mtexels/sec
Radeon R9 M385X		61600 Mtexels/sec
	Difference: 99680 (162%)

Pixel Rate

The Radeon RX 480 should be quite a bit (approximately 104%) faster with regards to AA than the Radeon R9 M385X, and will be able to handle higher screen resolutions more effectively. (explain)

Radeon RX 480		35840 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 18240 (104%)

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 maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could 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 ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.