Radeon R9 380 2G vs Radeon RX 470

Intro

Compare all that to the Radeon RX 470, which has 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 Rasterization Operator Units.

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

Theoretically speaking, the Radeon RX 470 should be 16% quicker than the Radeon R9 380 2G in general, due to its higher data rate. (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 bit (more or less 9%) better at AF 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 running with high levels of AA is important to you, then the Radeon R9 380 2G is a better choice, not by a very large margin though. (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: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's 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 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 get to the maximum fill rate.