Three Radeon HD5670s compared benchmarked

Review Head to head to head

Sapphire Radeon HD5670 1GB
Price £90.61

Sapphire’s HD5670 1GB has the memory and core clocks set at the reference design speeds (775MHz core, 1GHz (4GHz effective) memory) but using Hynix H5GQ1H24AFR-T2C memory chips which are rated at a maximum data rate of 5GHz so there’s some overhead if you want try and overclock.

What has changed is the cooler design, Sapphire choosing a larger Arctic Cooling designed cooler with a direct airflow fan, all of which changes it from the single slot solution of the reference design to a dual slot card and cools the card in near silence.

As on the reference design, on the endplate you will find a dual-link DVI port, a DisplayPort and a HDMI port, and there’s a HDMI-DVI adaptor in the box so you can connect this port up to another DVI ported monitor. 

Although it might not look much like the reference design, under the skin Sapphire Radeon HD5670 1GB version of the HD5670 has reference clocks all the way.

HIS HD5670 IceQ 512MB
Price TF

As this is a member of the IceQ family, the card is dominated by the large but very effective, quiet Arctic Cooling heatsink that makes this family line-up of cards stand out from the rest, and like Sapphire’s card turns it from a single-slot solution to a dual-slot one.

The backplane differs from the reference design by having a standard VGA port in place of the Displayport but keeps the DVI and HDMI ports, which for a card in this lower end part of the market makes a lot of sense.

Unlike Sapphire’s card, HIS’s HD5670 doesn’t have the dual Crossfire connectors on the top of the card, but it still supports Crossfire, sending the data across the PCI-E bus instead.

Benchmarks and our verdict, page 3.