Radeon R9 M380 vs Radeon R9 M395X

Intro

Compare all that to the Radeon R9 M395X, which makes use of a 28 nm design. AMD has set the core frequency at 723 MHz. The GDDR5 memory is set to run at a frequency of 1250 MHz on this specific model. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M395X should perform quite a bit faster than the Radeon R9 M380 overall. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 64000 (67%)

Texel Rate

The Radeon R9 M395X is much (more or less 131%) better at texture filtering than the Radeon R9 M380. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 52544 (131%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M395X is superior to the Radeon R9 M380, by far. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 7136 (45%)

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 maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type 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 faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock 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 output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.