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GIGABYTE GV-R785OC-2GD Radeon HD 7850 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX
bidorbuy ID: 67177193

GIGABYTE GV-R785OC-2GD Radeon HD 7850 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX

R2,500.00

The AMD HD7850 holds the 28nm Pitcairn GPU as its heart which is slightly trimmed back from the full blown HD7870. It has four compute units less than the 7870 which means a 25% drop in stream processor count from 1280 to 1024 and the texture units sinking to 64 from 80. This results in a performance drop of 25 GT/s. The HD7870 is also clocked higher at 1GHz while the 7850 (reference) makes do with 860MHz. Because the HD7850 is lower clocked and has less GCUs it consumes less power, 130w vs 175w. The HD7850 still packs a solid punch though thanks to the identical memory configuration of the HD7870 which works off a 256-bit bus and clocked to the same 1200MHz (4800MHz effective) which gives us an impressive 153.6 GB/s memory bandwidth. The GIGABYTE HD7850 OC makes up a fair bit of ground though because of the 115 extra MHz factory overclock applied to the core raising the 55GT/s to an impressive 62.4. While the memory clockspeed remains the same, we hope to eek a little more performance from both the memory and the core clockspeeds when we test the maximum overclock of the card.

Review & Specifications:

http://www.gigabyte.com/products/product-page.aspx?pid=4155#sp

http://www.vortez.net/articles_pages/gigabyte_hd7850_oc_windforce_review,1.html

 

 

 

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