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Radeon R9 M380 vs Radeon RX 460 2GB

Intro

The Radeon R9 M380 has a GPU core speed of 1000 MHz, and the 4096 MB of GDDR5 RAM runs at 1500 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Compare those specifications to the Radeon RX 460 2GB, which has a core clock frequency of 1090 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 128-bit bus, and makes use of a 14 nm design. It is comprised of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon RX 460 2GB should perform just a bit faster than the Radeon R9 M380 in general. (explain)

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

Texel Rate

The Radeon RX 460 2GB is a lot (about 53%) faster with regards to texture filtering 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 using high levels of AA is important to you, then the Radeon RX 460 2GB is a better choice, but not by far. (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

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Radeon R9 M380

Amazon.com

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Radeon RX 460 2GB

Amazon.com

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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 2GB
Manufacturer AMD AMD
Year 2015 August 2016
Code Name Cape Verde Polaris 11
Memory 4096 MB 2048 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 transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number 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 number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon R9 M380

Amazon.com

Check prices at:

Radeon RX 460 2GB

Amazon.com

Check prices at:

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.

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