Radeon R9 380X vs Radeon RX 470 4GB

Intro

Compare all that to the Radeon RX 470 4GB, which comes with a core clock speed of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also makes use of a 256-bit bus, and uses a 14 nm design. It is made up of 2048 SPUs, 128 TAUs, 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.

Ethereum Mining Hash Rate

Radeon RX 470 4GB		27 Mh/s
Radeon R9 380X		19 Mh/s
	Difference: 8 (42%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

In theory, the Radeon RX 470 4GB will be 16% quicker than the Radeon R9 380X in general, due to its greater bandwidth. (explain)

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

Texel Rate

The Radeon R9 380X will be a small bit (approximately 5%) faster with regards to anisotropic filtering than the Radeon RX 470 4GB. (explain)

Radeon R9 380X		124160 Mtexels/sec
Radeon RX 470 4GB		118528 Mtexels/sec
	Difference: 5632 (5%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 380X is the winner, though only just barely. (explain)

Radeon R9 380X		31040 Mpixels/sec
Radeon RX 470 4GB		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 MB per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.