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AMD Radeon R9 270X

AMD Radeon R9 270X

The AMD Radeon R9 270X is an upper middle-class graphics card for desktop PCs, that has been presented in October 2013. It is based on the "Curacao" GPU and manufactured in 28 nanometers. The card offers 1280 shader units and a 256-bit memory interface (2 GB GDDR5, 179 GB/s).


The R9 270X uses the same chip as the older Radeon HD 7870. Curacao, former known as Pitcairn, is based on the GCN architecture and offers 1280 shaders, 80 TMUs and 32 ROPs. Compared to the HD 7870, the R9 270X clocks slightly higher at 1050 MHz for the Core (max. Boost) and 1400 MHz (5600 MHz effective) for the memory. The 270X supports DirectX 12 (FL 11_1), but lacks the new Trueaudio feature.


Depending on game and settings, the performance of the Radeon R9 270X is similar to the Nvidia GeForce GTX 760. Therefore, even the fastest mobile GPUs like the GeForce GTX 780M are outperformed slightly. Demanding games like Metro: Last Light can be played fluently in 1920 x 1080 pixels and maximum settings. In some cases, even higher resolutions or additional AA/AF are possible.


The R9 270X supports well-known features like Eyefinity, but also some innovations such as a new turbo mode. Depending on power consumption and temperature, the core can be boosted up to 1050 MHz. However, there is no offical base clock respectively a lower limit.

Power Consumption

Thanks to dynamic clock adjustments and the Zero Core technology, the R9 270X is very energy efficient while idle. Under load, the card is rated at a typical power consumption of 180 watts.

R9 Series

Radeon R9 290X compare 2816 @ 1 GHz512 Bit @ 5000 MHz
Radeon R9 280X compare 2048 @ 1 GHz384 Bit @ 6000 MHz
Radeon R9 270X 1280 @ 1.05 GHz256 Bit @ 5600 MHz
CodenameCuracao XT
Pipelines1280 - unified
Core Speed1050 MHz
Memory Speed5600 MHz
Memory Bus Width256 Bit
Memory TypeGDDR5
Max. Amount of Memory2048 MB
Shared Memoryno
APIDirectX 12 (FL 11_1), OpenGL 4.3
Power Consumption180 Watt
Transistor Count2.8 Billion
technology28 nm
FeaturesMantle, Eyefinity, App Acceleration, CrossFire, PowerTune, ZeroCore, HD3D
Date of Announcement08.10.2013
InformationPCI-E 3.0, HDMI mit 4K-Support
Link to Manufacturer


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