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Radeon R9 270 vs Radeon R9 380 2G

Intro

The Radeon R9 270 features clock speeds of 900 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 memory. It features 1280 SPUs along with 80 Texture Address Units and 32 ROPs.

Compare all that to the Radeon R9 380 2G, which comes with a clock speed of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is comprised of 1792 SPUs, 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 270 5943 points
Difference: 2907 (49%)

Ethereum Mining Hash Rate

Radeon R9 380 2G 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 380 2G 190 Watts
Difference: 40 Watts (27%)

Memory Bandwidth

Theoretically, the Radeon R9 380 2G should perform just a bit faster than the Radeon R9 270 in general. (explain)

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

Texel Rate

The Radeon R9 380 2G should be a lot (more or less 51%) better at AF than the Radeon R9 270. (explain)

Radeon R9 380 2G 108640 Mtexels/sec
Radeon R9 270 72000 Mtexels/sec
Difference: 36640 (51%)

Pixel Rate

The Radeon R9 380 2G should be a small bit (about 8%) better at FSAA than the Radeon R9 270, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 380 2G 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 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 270 Radeon R9 380 2G
Manufacturer AMD AMD
Year November 2013 June 2015
Code Name Curacao Pro Antigua PRO
Memory 2048 MB 2048 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 largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. 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 output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon R9 270

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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