Radeon R9 M280X vs Radeon RX 550

Intro

Compare all of that to the Radeon RX 550, which comes with core clock speeds of 1100 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 memory. It features 512 SPUs along with 32 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon R9 M280X		75 Watts
	Difference: 25 Watts (50%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 550 should perform quite a bit faster than the Radeon R9 M280X in general. (explain)

Radeon RX 550		114688 MB/sec
Radeon R9 M280X		88000 MB/sec
	Difference: 26688 (30%)

Texel Rate

The Radeon R9 M280X is much (more or less 43%) faster with regards to AF than the Radeon RX 550. (explain)

Radeon R9 M280X		50400 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 15200 (43%)

Pixel Rate

The Radeon RX 550 is much (more or less 22%) more effective at full screen anti-aliasing than the Radeon R9 M280X, and will be capable of handling higher screen resolutions more effectively. (explain)

Radeon RX 550		17600 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 3200 (22%)

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 MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends 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.