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AMD Radeon R9 255 OEM
The Radeon R9 255 OEM is a graphics card by AMD, launched in December 2013. Built on the 28 nm process, and based on the Cape Verde graphics processor, in its Cape Verde PRX variant, the card supports DirectX 12.0. The Cape Verde graphics processor is an average sized chip with a die area of 123 mm² and 1,500 million transistors. Unlike the fully unlocked Radeon HD 7770 GHz Edition, which uses the same GPU but has all 640 shaders enabled, AMD has disabled some shading units on the Radeon R9 255 OEM to reach the product's target shader count. It features 512 shading units, 32 texture mapping units and 16 ROPs. AMD has placed 2,048 MB GDDR5 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 900 MHz, which can be boosted up to 930 MHz, memory is running at 1150 MHz.
We recommend the AMD Radeon R9 255 OEM for gaming with highest details at resolutions up to, and including, 1280x720.
Being a dual-slot card, the AMD Radeon R9 255 OEM draws power from 1x 6-pin power connectors, with power draw rated at 65 W maximum. Radeon R9 255 OEM is connected to the rest of the system using a PCIe 3.0 x16 interface.
||Cape Verde PRX
||Dec 21st, 2013
||PCIe 3.0 x16
4600 MHz effective
Retail boards based on this design
ASUS R9 255 DDR3
||Boost Clock: 900 MHz, DDR3