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ATI Radeon HD 4860
The Radeon HD 4860 was a graphics card by ATI, launched in September 2009. Built on the 55 nm process, and based on the RV790 graphics processor, in its RV790 GT variant, the card supports DirectX 10.1. The RV790 graphics processor is an average sized chip with a die area of 282 mm² and 959 million transistors. Unlike the fully unlocked Radeon HD 4890, which uses the same GPU but has all 800 shaders enabled, ATI has disabled some shading units on the Radeon HD 4860 to reach the product's target shader count. It features 640 shading units, 32 texture mapping units and 16 ROPs. ATI has placed 512 MB GDDR5 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 700 MHz, memory is running at 750 MHz.
We recommend the ATI Radeon HD 4860 for gaming with highest details at resolutions up to, and including, 1280x720.
Being a dual-slot card, the ATI Radeon HD 4860 draws power from 2x 6-pin power connectors, with power draw rated at 130 W maximum. Display outputs include: 2x DVI, 1x S-Video. Radeon HD 4860 is connected to the rest of the system using a PCIe 2.0 x16 interface.
||Sep 9th, 2009
||PCIe 2.0 x16
3000 MHz effective
Retail boards based on this design
Sapphire HD 4860 1 GB
||1024 MB, 1x DVI 1x HDMI 1x DisplayPort