As expected, on 19th of April 2011AMD has officially launched two Truks based cards of Radeon HD 6000 series — HD 6670 and HD 6570 — and one entry level card — HD 6450 — that uses Caicos GPU. All cards uses 40nm chips and supports DirectX11 API. The last is outlined to have low-profile design that will fit most mini-PCs and HTPC systems perfectly.
As for actual specification of new cards, AMD Radeon HD 6670 has 480 SP (Stream Processors), 24 TMUs (Texture Mapping Unit) and 512 MB/1 GB of GDDR5 memory connected to GPU via 128-bit interface. TDP of the card is only 66 Watts while clock rates are, as follows: 800/1000 (4000) MHz for GPU/Memory respectively. Technical details of AMD Radeon HD 6570 are almost the same as its elder brother’s, although, it can be equipped with 512 MB to 2 GB of DDR3 memory. The TDP is a bit lower, 60W, same as GPU clock — 650 MHz. The memory speed is 1000 (4000) and 900 (1800) for GDDR5 and DDR3 respectively.
Turks based cards have active cooling systems, compared to Radeon HD 6450 that is satisfied with passively cooled heatsink only. The number of outputs featuring Dual-link DVI, D-Sub, HDMI and DisplayPort can be differently set. MSRP for three cards are:
- AMD Radeon HD 6670 — $99
- AMD Radeon HD 6570 — $79
- AMD Radeon HD 6450 — $55