Radeon R9 380 4G vs Radeon RX 470

Intro

Compare those specs to the Radeon RX 470, which makes use of a 14 nm design. AMD has set the core speed at 926 MHz. The GDDR5 RAM runs at a frequency of 1650 MHz on this card. It features 2048 SPUs as well as 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.

Ethereum Mining Hash Rate

Radeon RX 470		26 Mh/s
Radeon R9 380 4G		21 Mh/s
	Difference: 5 (24%)

3DMark Fire Strike Graphics Score

Radeon RX 470		11756 points
Radeon R9 380 4G		8837 points
	Difference: 2919 (33%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon R9 380 4G		190 Watts
	Difference: 70 Watts (58%)

Memory Bandwidth

Theoretically, the Radeon RX 470 should be a bit faster than the Radeon R9 380 4G overall. (explain)

Radeon RX 470		211200 MB/sec
Radeon R9 380 4G		182400 MB/sec
	Difference: 28800 (16%)

Texel Rate

The Radeon RX 470 is a little bit (about 9%) more effective at AF than the Radeon R9 380 4G. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon R9 380 4G		108640 Mtexels/sec
	Difference: 9888 (9%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 380 4G is superior to the Radeon RX 470, but not by far. (explain)

Radeon R9 380 4G		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 max amount of data (measured in MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out 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 in a second.

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