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Radeon R9 270 vs Radeon R9 380X

Intro

The Radeon R9 270 has a GPU core clock speed of 900 MHz, and the 2048 MB of GDDR5 memory is set to run at 1400 MHz through a 256-bit bus. It also is made up of 1280 Stream Processors, 80 TAUs, and 32 ROPs.

Compare all of that to the Radeon R9 380X, which comes with GPU core speed of 970 MHz, and 4096 MB of GDDR5 memory running at 1425 MHz through a 256-bit bus. It also features 2048 SPUs, 128 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 380X 9519 points
Radeon R9 270 5943 points
Difference: 3576 (60%)

Ethereum Mining Hash Rate

Radeon R9 380X 19 Mh/s
Radeon R9 270 15 Mh/s
Difference: 4 (27%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270 150 Watts
Radeon R9 380X 190 Watts
Difference: 40 Watts (27%)

Memory Bandwidth

Performance-wise, the Radeon R9 380X should in theory be just a bit superior to the Radeon R9 270 overall. (explain)

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

Texel Rate

The Radeon R9 380X will be much (approximately 72%) better at anisotropic filtering than the Radeon R9 270. (explain)

Radeon R9 380X 124160 Mtexels/sec
Radeon R9 270 72000 Mtexels/sec
Difference: 52160 (72%)

Pixel Rate

The Radeon R9 380X will be a bit (more or less 8%) more effective at anti-aliasing than the Radeon R9 270, and capable of handling higher resolutions without slowing down too much. (explain)

Radeon R9 380X 31040 Mpixels/sec
Radeon R9 270 28800 Mpixels/sec
Difference: 2240 (8%)

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 270

Amazon.com

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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.

Specifications

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Model Radeon R9 270 Radeon R9 380X
Manufacturer AMD AMD
Year November 2013 November 2015
Code Name Curacao Pro Tonga XT
Memory 2048 MB 4096 MB
Core Speed 900 MHz 970 MHz
Memory Speed 5600 MHz 5700 MHz
Power (Max TDP) 150 watts 190 watts
Bandwidth 179200 MB/sec 182400 MB/sec
Texel Rate 72000 Mtexels/sec 124160 Mtexels/sec
Pixel Rate 28800 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 1280 2048
Texture Mapping Units 80 128
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 x16
DirectX Version DirectX 11.2 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's 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 better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, 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 chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock 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 output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Radeon R9 270

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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