Radeon R9 380 4G vs Radeon RX 550

Intro

Compare those specifications to the Radeon RX 550, which makes use of a 14 nm design. AMD has set the core speed at 1100 MHz. The GDDR5 memory works at a speed of 1750 MHz on this particular card. It features 512 SPUs as well as 32 TAUs 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 380 4G		8837 points
Radeon RX 550		3507 points
	Difference: 5330 (152%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon R9 380 4G		190 Watts
	Difference: 140 Watts (280%)

Memory Bandwidth

Theoretically, the Radeon R9 380 4G should be a lot faster than the Radeon RX 550 in general. (explain)

Radeon R9 380 4G		182400 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 67712 (59%)

Texel Rate

The Radeon R9 380 4G is a lot (more or less 209%) faster with regards to anisotropic filtering than the Radeon RX 550. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 73440 (209%)

Pixel Rate

The Radeon R9 380 4G is much (more or less 76%) better at AA than the Radeon RX 550, and should be capable of handling higher resolutions without losing too much performance. (explain)

Radeon R9 380 4G		31040 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 13440 (76%)

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 data (in units of MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 can be processed per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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 - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.