Radeon R9 380 2G vs Radeon RX 460 2GB

Intro

Compare those specifications to the Radeon RX 460 2GB, which uses a 14 nm design. AMD has clocked the core speed at 1090 MHz. The GDDR5 memory is set to run at a speed of 1750 MHz on this particular card. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB		75 Watts
Radeon R9 380 2G		190 Watts
	Difference: 115 Watts (153%)

Memory Bandwidth

In theory, the Radeon R9 380 2G should perform a lot faster than the Radeon RX 460 2GB overall. (explain)

Radeon R9 380 2G		182400 MB/sec
Radeon RX 460 2GB		112000 MB/sec
	Difference: 70400 (63%)

Texel Rate

The Radeon R9 380 2G is a lot (more or less 78%) faster with regards to AF than the Radeon RX 460 2GB. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon RX 460 2GB		61040 Mtexels/sec
	Difference: 47600 (78%)

Pixel Rate

The Radeon R9 380 2G should be quite a bit (more or less 78%) more effective at anti-aliasing than the Radeon RX 460 2GB, and also will be able to handle higher screen resolutions more effectively. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon RX 460 2GB		17440 Mpixels/sec
	Difference: 13600 (78%)

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 (counted in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 are processed per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the 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 maximum amount of pixels the video 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 Render Output Units by the the card's clock speed. 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 rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.