Radeon R9 M380 vs Radeon RX 460 2GB

Intro

Compare those specs to the Radeon RX 460 2GB, which comes with core clock speeds of 1090 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 memory. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon RX 460 2GB should in theory perform just a bit faster than the Radeon R9 M380 overall. (explain)

Radeon RX 460 2GB		112000 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 16000 (17%)

Texel Rate

The Radeon RX 460 2GB should be much (about 53%) more effective at AF than the Radeon R9 M380. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 21040 (53%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 460 2GB is the winner, not by a very large margin though. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 1440 (9%)

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 largest amount of data (measured in MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses 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 processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.