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AMD’s latest generation GPU series is really starting to take shape now. Having been blown away by the performance of the Radeon HD 7900 series and then let down by the steep pricing of the HD 7700 series, we are keen to see what AMD has to offer with the new HD 7800 series.
Today marks the release of the 'Pitcairn' GPUs (code-name) which make up the the Radeon HD 7800 series. As you would expect the series consists of two GPUs: the Radeon HD 7870 and Radeon HD 7850, designed to occupy the ample $200 to $400 range.
Like its higher and lower-end siblings, the new HD 7800 series is built using the 28nm design process and is also based on AMD's Graphics Core Next architecture.
The HD 7950 has 2048 SPUs, 128 TAUs and 32 ROPs. The only other ports are on the I/O panel where you'll find a dual DL-DVI connector, a single HDMI 1.4a port, and two mini-DisplayPort 1.2 sockets. Supports a max resolution of 2560x1600 on up to 3 monitors.
The AMD ATI Radeon HD 7970 measures 27 cm long (10.6 in), the GPU core is clocked at 925MHz, and the GDDR5 memory operates at the same frequency of 1375MHz (5.5GHz DDR). Still, pairing that frequency with a 384-bit memory bus gives the HD 7970 264GB/s of theoretical bandwidth. The HD 7970 carries 2048 SPUs, 128 TAUs and 32 ROPs, up 33% from 1536 SPUs and 96 TAUs, it's also the first PCI Express 3.0-compatible card.
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