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Radeon R9 380 2G vs Radeon R9 380X

Intro

The Radeon R9 380 2G features a GPU core speed of 970 MHz, and the 2048 MB of GDDR5 RAM runs at 1425 MHz through a 256-bit bus. It also is comprised of 1792 Stream Processors, 112 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon R9 380X, which makes use of a 28 nm design. AMD has clocked the core speed at 970 MHz. The GDDR5 RAM is set to run at a frequency of 1425 MHz on this card. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 380X 9519 points
Radeon R9 380 2G 8850 points
Difference: 669 (8%)

Ethereum Mining Hash Rate

Radeon R9 380 2G 19 Mh/s
Radeon R9 380X 19 Mh/s
Difference: 0 (0%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Both cards have exactly the same bandwidth, so in theory they should perform exactly the same. (explain)

Texel Rate

The Radeon R9 380X will be a small bit (approximately 14%) better at AF than the Radeon R9 380 2G. (explain)

Radeon R9 380X 124160 Mtexels/sec
Radeon R9 380 2G 108640 Mtexels/sec
Difference: 15520 (14%)

Pixel Rate

Both cards have exactly the same pixel rate, so theoretically they should perform equally good at at anti-aliasing, and be capable of handling the same screen resolutions. (explain)

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 380 2G

Amazon.com

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Radeon R9 380X

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 380 2G Radeon R9 380X
Manufacturer AMD AMD
Year June 2015 November 2015
Code Name Antigua PRO Tonga XT
Memory 2048 MB 4096 MB
Core Speed 970 MHz 970 MHz
Memory Speed 5700 MHz 5700 MHz
Power (Max TDP) 190 watts 190 watts
Bandwidth 182400 MB/sec 182400 MB/sec
Texel Rate 108640 Mtexels/sec 124160 Mtexels/sec
Pixel Rate 31040 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 1792 2048
Texture Mapping Units 112 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 5000 million 5000 million
Bus PCIe 3.0 ×16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, 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 that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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Radeon R9 380 2G

Amazon.com

Check prices at:

Radeon R9 380X

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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