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Radeon R9 270X vs Radeon R9 380 2G

Intro

The Radeon R9 270X features core clock speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.

Compare those specs to the Radeon R9 380 2G, which makes use of a 28 nm design. AMD has set the core frequency at 970 MHz. The GDDR5 RAM is set to run at a speed of 1425 MHz on this card. It features 1792 SPUs as well as 112 TAUs 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 380 2G 8850 points
Radeon R9 270X 6590 points
Difference: 2260 (34%)

Ethereum Mining Hash Rate

Radeon R9 380 2G 19 Mh/s
Radeon R9 270X 18 Mh/s
Difference: 1 (6%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X 180 Watts
Radeon R9 380 2G 190 Watts
Difference: 10 Watts (6%)

Memory Bandwidth

Theoretically, the Radeon R9 380 2G should perform a small bit faster than the Radeon R9 270X overall. (explain)

Radeon R9 380 2G 182400 MB/sec
Radeon R9 270X 179200 MB/sec
Difference: 3200 (2%)

Texel Rate

The Radeon R9 380 2G will be quite a bit (more or less 36%) better at AF than the Radeon R9 270X. (explain)

Radeon R9 380 2G 108640 Mtexels/sec
Radeon R9 270X 80000 Mtexels/sec
Difference: 28640 (36%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 270X is the winner, but only just. (explain)

Radeon R9 270X 32000 Mpixels/sec
Radeon R9 380 2G 31040 Mpixels/sec
Difference: 960 (3%)

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 270X

Amazon.com

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Radeon R9 380 2G

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.

Specifications

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Model Radeon R9 270X Radeon R9 380 2G
Manufacturer AMD AMD
Year October 2013 June 2015
Code Name Curacao XT Antigua PRO
Memory 2048 MB 2048 MB
Core Speed 1000 MHz 970 MHz
Memory Speed 5600 MHz 5700 MHz
Power (Max TDP) 180 watts 190 watts
Bandwidth 179200 MB/sec 182400 MB/sec
Texel Rate 80000 Mtexels/sec 108640 Mtexels/sec
Pixel Rate 32000 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 1280 1792
Texture Mapping Units 80 112
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 2800 million 5000 million
Bus PCIe 3.0 x16 PCIe 3.0 ×16
DirectX Version DirectX 11.2 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This 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 video card will be at handling 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. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few 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.

Display Prices

Hide Prices

Radeon R9 270X

Amazon.com

Check prices at:

Radeon R9 380 2G

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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