Radeon R9 390X 8G vs Radeon RX 550

Intro

Compare all of that to the Radeon RX 550, which uses a 14 nm design. AMD has set the core frequency at 1100 MHz. The GDDR5 memory works at a speed of 1750 MHz on this card. It features 512 SPUs along with 32 Texture Address Units and 16 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 390X 8G		13555 points
Radeon RX 550		3507 points
	Difference: 10048 (287%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 225 Watts (450%)

Memory Bandwidth

In theory, the Radeon R9 390X 8G will be 235% quicker than the Radeon RX 550 in general, due to its greater data rate. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 269312 (235%)

Texel Rate

The Radeon R9 390X 8G is a lot (more or less 425%) more effective at AF than the Radeon RX 550. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 149600 (425%)

Pixel Rate

The Radeon R9 390X 8G is much (approximately 282%) better at FSAA than the Radeon RX 550, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 49600 (282%)

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 largest amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units by the core 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.