bit-tech.net | The UK's leading source for Hardware and Games reviews recommend the UD3R over the DS3R.
UD3R is the same as the UD3P, except UD3P has crossfire support while UD3R does not.
bit-tech.net | Review - Gigabyte GA-EP45-UD3R
Since the DS3R now retails for almost an identical price to this and it was between the two - we'd get the UD3R every time: it's better cooled, better performing in our benchmarks and lower power. It doesn't achieve excellence but we'd certainly recommend it for those needing a solid P45 purchase.
UD3R is the same as the UD3P, except UD3P has crossfire support while UD3R does not.
bit-tech.net | Review - Gigabyte GA-EP45-UD3R
Since the DS3R now retails for almost an identical price to this and it was between the two - we'd get the UD3R every time: it's better cooled, better performing in our benchmarks and lower power. It doesn't achieve excellence but we'd certainly recommend it for those needing a solid P45 purchase.
