Radeon R9 380 2G vs Radeon RX 570

Intro

Compare that to the Radeon RX 570, which comes with GPU core speed of 1168 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 Texture Address Units, and 32 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 RX 570		12108 points
Radeon R9 380 2G		8850 points
	Difference: 3258 (37%)

Ethereum Mining Hash Rate

Radeon RX 570		26 Mh/s
Radeon R9 380 2G		19 Mh/s
	Difference: 7 (37%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
Radeon R9 380 2G		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

In theory, the Radeon RX 570 is 26% quicker than the Radeon R9 380 2G overall, because of its greater bandwidth. (explain)

Radeon RX 570		229376 MB/sec
Radeon R9 380 2G		182400 MB/sec
	Difference: 46976 (26%)

Texel Rate

The Radeon RX 570 should be a lot (approximately 38%) faster with regards to AF than the Radeon R9 380 2G. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon R9 380 2G		108640 Mtexels/sec
	Difference: 40864 (38%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 570 is the winner, but it probably won't make a huge difference. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon R9 380 2G		31040 Mpixels/sec
	Difference: 6336 (20%)

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 over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better 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 amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.