Radeon R9 M380 vs Radeon R9 Nano

Intro

Compare all that to the Radeon R9 Nano, which makes use of a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The HBM RAM is set to run at a frequency of 500 MHz on this specific model. It features 4096 SPUs along with 256 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 Nano should be much faster than the Radeon R9 M380 in general. (explain)

Radeon R9 Nano		512000 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 416000 (433%)

Texel Rate

The Radeon R9 Nano will be quite a bit (more or less 540%) more effective at AF than the Radeon R9 M380. (explain)

Radeon R9 Nano		256000 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 216000 (540%)

Pixel Rate

The Radeon R9 Nano should be quite a bit (more or less 300%) more effective at full screen anti-aliasing than the Radeon R9 M380, and also able to handle higher screen resolutions more effectively. (explain)

Radeon R9 Nano		64000 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 48000 (300%)

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 MB per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at handling 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 video card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.