Radeon R9 M380 vs Radeon RX 470 4GB

Intro

Compare all that to the Radeon RX 470 4GB, which uses a 14 nm design. AMD has set the core frequency at 926 MHz. The GDDR5 RAM is set to run at a frequency of 1650 MHz on this card. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon RX 470 4GB, in theory, should perform quite a bit faster than the Radeon R9 M380 overall. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 115200 (120%)

Texel Rate

The Radeon RX 470 4GB should be a lot (approximately 196%) more effective at texture filtering than the Radeon R9 M380. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 78528 (196%)

Pixel Rate

The Radeon RX 470 4GB will be much (approximately 85%) more effective at FSAA than the Radeon R9 M380, and also will be capable of handling higher resolutions more effectively. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 13632 (85%)

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 information (counted in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the 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 can be applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 get to the maximum fill rate.