AMD "Pircairn" 7800-series specs are here

AMD's Radeon HD 7800-series "Pitcairn" gets some specification leakage.

@anthony256
Published Mon, Feb 20 2012 7:30 PM CST   |   Updated Wed, Mar 10 2021 1:19 PM CST

AMD have had their launch of their Radeon 7900-series, and now its time for the next Graphics CoreNext cards to be unveiled, the "Pitcairn" cards. The Pitcairn cards will slot into the Radeon HD 7800-series, where we'll see three SKUs from this series.

AMD Pircairn 7800-series specs are here | TweakTown.com

First up we'll have the Radeon HD 7870, then a 2GB 7850 and a 1GB 7850. Spec-wise, we have:

Radeon HD 7870

  • 22 GCN CUs, 1408 stream processors
  • 88 TMUs, 24 ROPs (de-linked from memory bus)
  • 256-bit wide GDDR5 memory interface, 2 GB
  • Clock speeds of 950 MHz core, 1375 MHz (5.50 GHz effective) memory

Radeon HD 7850

  • 20 Graphics CoreNext Compute Units, 1280 stream processors
  • 80 TMUs, 24 ROPs (de-linked from the memory bus, of course)
  • 256-bit wide GDDR5 memory interface, 2 GB and 1 GB variants
  • Clock speeds of 900 MHz core, 1250 MHz (5.00 GHz effective) memory

Anthony is a long time PC enthusiast with a passion of hate for games built around consoles. FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with custom-built PCs. His addiction to GPU tech is unwavering.

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