OC3D Review: Sapphire 5770 Crossfire Review
- Thread starter tinytomlogan
- Start date
daletur328
New member
you mentioned the driver cd being used. Was it the 10.3 ATI CrossFireX Application Profiles if not it would be useful to know what effect this has across the boards.
It was 10.2 dude 10.3 has only just been released.
daletur328
New member
cheers, was wondering. just put spanner in works was intending to buy 5870 but not too sure now, not a lot of money and seems more bang for buck on crossfire. just never used crossfire.
Runebeard
New member
Lol this really makes me question my judgement. Was really thinking about a 5870 but this definitely makes me think twice about it if I can save £100 and get comparable performance if I do a bit of overclocking...
If funds weren't too much of an issue would it still be recommended to go with a 5870 instead?
If funds weren't too much of an issue would it still be recommended to go with a 5870 instead?
alexhull24
New member
A pair of these makes a great combination it seems. What I wonder is, how powerful a CPU do you need so that you're not bottlenecking this setup on most games? Is it the same as the single card? Also, what are the power requirements like under overclocked crossfire compared to the other cards? This seems to be something that comes up more and more nowadays.
And another question (more relating to my setup) - are two 8x PCI-E lanes sufficient? Would a better chipset than P45 be worth investing in to make the most from these cards?
And another question (more relating to my setup) - are two 8x PCI-E lanes sufficient? Would a better chipset than P45 be worth investing in to make the most from these cards?
No mate thats completely inaccurate unless the CPU was a single core celeron.
alienware
Banned
BTW I remembered I did this last night during the transition from single to Crossfire.
Here is a shot with everything maxed on one card in the menu.
And the same menu about twenty minutes later with the second card fitted.
I had a gap between getting one card and the other because the second was an RMA exchange for my dead 280GTX
Here is a shot with everything maxed on one card in the menu.
And the same menu about twenty minutes later with the second card fitted.
I had a gap between getting one card and the other because the second was an RMA exchange for my dead 280GTX
alexhull24
New member
Cool, I'm making the same transition as you, from GTX280 to 5770CF. I'm just about to start running benchmarks with the GTX280 and a single 5770, should have results up this week if anyone's interested. I've got DiRT 2, so that'll be tested, if there's any other games people would particularly like to see I can see if I can bench them. Don't have BC2 I'm afraid!
Start a thread fella, always good to see individual results
alexhull24
New member
name='tinytomlogan' said:
Will do. I'm planning on doing GTX280, 5770, 5770CF. The first two now, the latter once I've sold my GTX280. I've got a few benchmarking programs and plenty of games. There'll also be some nice photos!
alienware
Banned
name='alexhull24' said:
Sorry Alex I only just realised you had posted that.
I too have a board that shares the bandwidth into 2 x 8xPCIE. I read for about a week before deciding that it would be fine. In my 3dvantage I scored 14,400 or so on 3dmarks. The test system used for the review here probably cost 2-3 times what mine did. My motherboard was £30 and my CPU will not touch an I7 (Phenom 2 940).
So yes, the particular set up used here scored 3000 more 3dmarks than mine did and it probably allowed the 5770s to stretch their legs more but 14,400 is still a very respectable score for a system like mine.
I did read somewhere that putting the same system into a motherboard with twin 16X PCIE slots gained about 1000 points more than the system with 2 x 8X PCIE slots.
Also consider that your 280 will score about what mine did in Vantage - about 9000 3dmarks. So to sum it up if you already have a system with 2 x 8x PCIE slots then it would be financial suicide for the levels of performance you will gain (hardly any tbh).
