Radeon R9 380 4G vs Radeon RX 590

Intro

Compare those specifications to the Radeon RX 590, which has a clock speed of 1469 MHz and a GDDR5 memory frequency of 2000 MHz. It also features a 256-bit bus, and makes use of a 12 nm design. It is comprised of 2304 SPUs, 144 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590		175 Watts
Radeon R9 380 4G		190 Watts
	Difference: 15 Watts (9%)

Memory Bandwidth

Theoretically, the Radeon RX 590 should perform quite a bit faster than the Radeon R9 380 4G in general. (explain)

Radeon RX 590		262144 MB/sec
Radeon R9 380 4G		182400 MB/sec
	Difference: 79744 (44%)

Texel Rate

The Radeon RX 590 will be a lot (about 95%) better at anisotropic filtering than the Radeon R9 380 4G. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon R9 380 4G		108640 Mtexels/sec
	Difference: 102896 (95%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 590 is superior to the Radeon R9 380 4G, by far. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon R9 380 4G		31040 Mpixels/sec
	Difference: 15968 (51%)

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 (in units of megabytes per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.