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Radeon R9 270 vs Radeon R9 380 4G

Intro

The Radeon R9 270 makes use of a 28 nm design. AMD has set the core speed at 900 MHz. The GDDR5 memory is set to run at a speed of 1400 MHz on this particular card. It features 1280 SPUs as well as 80 TAUs and 32 ROPs.

Compare those specifications to the Radeon R9 380 4G, which uses a 28 nm design. AMD has set the core frequency at 970 MHz. The GDDR5 RAM is set to run at a frequency of 1425 MHz on this model. It features 1792 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.

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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 4G 8837 points
Radeon R9 270 5943 points
Difference: 2894 (49%)

Ethereum Mining Hash Rate

Radeon R9 380 4G 21 Mh/s
Radeon R9 270 15 Mh/s
Difference: 6 (40%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270 150 Watts
Radeon R9 380 4G 190 Watts
Difference: 40 Watts (27%)

Memory Bandwidth

Performance-wise, the Radeon R9 380 4G should theoretically be just a bit better than the Radeon R9 270 in general. (explain)

Radeon R9 380 4G 182400 MB/sec
Radeon R9 270 179200 MB/sec
Difference: 3200 (2%)

Texel Rate

The Radeon R9 380 4G will be quite a bit (more or less 51%) better at texture filtering than the Radeon R9 270. (explain)

Radeon R9 380 4G 108640 Mtexels/sec
Radeon R9 270 72000 Mtexels/sec
Difference: 36640 (51%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 380 4G is superior to the Radeon R9 270, not by a very large margin though. (explain)

Radeon R9 380 4G 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

Check prices at:

Radeon R9 380 4G

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 380 4G
Manufacturer AMD AMD
Year November 2013 June 2015
Code Name Curacao Pro Antigua PRO
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 108640 Mtexels/sec
Pixel Rate 28800 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: Memory bandwidth is the max amount of information (measured in MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - 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 380 4G

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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