Radeon R9 380 2G vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which comes with clock speeds of 926 MHz on the GPU, and 1650 MHz on the 8192 MB of GDDR5 memory. It features 2048 SPUs along with 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 470		11756 points
Radeon R9 380 2G		8850 points
	Difference: 2906 (33%)

Ethereum Mining Hash Rate

Radeon RX 470		26 Mh/s
Radeon R9 380 2G		19 Mh/s
	Difference: 7 (37%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon R9 380 2G		190 Watts
	Difference: 70 Watts (58%)

Memory Bandwidth

In theory, the Radeon RX 470 should perform a small bit faster than the Radeon R9 380 2G in general. (explain)

Radeon RX 470		211200 MB/sec
Radeon R9 380 2G		182400 MB/sec
	Difference: 28800 (16%)

Texel Rate

The Radeon RX 470 is a little bit (more or less 9%) faster with regards to anisotropic filtering than the Radeon R9 380 2G. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon R9 380 2G		108640 Mtexels/sec
	Difference: 9888 (9%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 380 2G is the winner, though only just barely. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon RX 470		29632 Mpixels/sec
	Difference: 1408 (5%)

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 max amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 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 better this number, 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 number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.