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Radeon R9 M380 vs Radeon RX 460

Intro

The Radeon R9 M380 comes with a GPU core clock speed of 1000 MHz, and the 4096 MB of GDDR5 RAM runs at 1500 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.

Compare all of that to the Radeon RX 460, which features a clock speed of 1090 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 128-bit bus, and uses a 14 nm design. It features 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon RX 460 will be 17% faster than the Radeon R9 M380 overall, because of its greater data rate. (explain)

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

Texel Rate

The Radeon RX 460 should be quite a bit (approximately 53%) better at texture filtering than the Radeon R9 M380. (explain)

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

Pixel Rate

The Radeon RX 460 is a bit (more or less 9%) faster with regards to AA than the Radeon R9 M380, and capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 460 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

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Radeon R9 M380

Amazon.com

Radeon RX 460

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon R9 M380 Radeon RX 460
Manufacturer AMD AMD
Year 2015 August 2016
Code Name Cape Verde Polaris 11
Memory 4096 MB 4096 MB
Core Speed 1000 MHz 1090 MHz
Memory Speed 6000 MHz 7000 MHz
Power (Max TDP) (Unknown) watts 75 watts
Bandwidth 96000 MB/sec 112000 MB/sec
Texel Rate 40000 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 16000 Mpixels/sec 17440 Mpixels/sec
Unified Shaders 640 896
Texture Mapping Units 40 56
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 14 nm
Transistors (Unknown) million 3000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock 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 rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

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