Radeon HD 7850 and HD 7870 specifications surfaced

Here we are going down, now after the HD 7970 and HD 7950, here is the successor, two lower graphic card in performance and in price, the AMD Radeon HD 7850 and Radeon HD 7870, showing their specifications capabilities to the world targeting the sub 300$ buyers, with an interesting specifications numbers, featuring a 28 nm GPU, codenamed "Pitcairn", but the HD 7890 which will be released on March will use a Tahiti GPU, specs bellow:

Radeon HD 7850 specifications

• 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

Radeon HD 7870 specifications

• 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

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