Hi friends, at last I'm going to purchase my new gaming rig containing i5 670 with clock sped 3.46 ghz and motherboard GA-P55A-UD5.Hi guys, I am going to purchase 25" LCD full HD with resolution 1920*1080.
But I'm confused in choosing best gpu among following :
ATI Radeon HD 5850 , ATI Radeon HD 5750 , ATI Radeon HD 5770
With games getting more and more demanding all the time, a new build should aim as high as budget permits, or you'll just end up upgrading sooner so my choice would be the HD5850.
BUT, if the monitor is 1680x1050 resolution or lower the HD5770 might make more sense.
As you can see from the chart, to equal the ATI choices you'll need to look at the GTX260 (HD5770 is similar but actually a little slower) or the GTX280/285 to match the HD5850, both of which tend to be more expensive and lack the extra features of the ATI cards (DX11, lower power consumption, quiet operation, superior HD sound and, yes, Eyefinity).
Gigabyte’s P55A-UD4P cuts costs by using the processor’s PCIe 2.0 connections to host its high-bandwidth controllers. Two of the primary graphics card’s 16 PCIe lanes supply its USB 3.0 and SATA 6.0 Gb/s controllers, and Gigabyte disables six more lanes to make the upper slot an effective x8 interface. The USB 3.0 and SATA 6.0 Gb/s controllers revert to the chipset’s 2.5 GT/s lanes whenever two graphics cards are installed, to preserve the x8 transfers each graphics card needs for optimal CrossFire or SLI performance.
Thus, users with a single graphics card must sacrifice half of its peak bandwidth to enable 5.0 Gb transfers to the USB 3.0 and SATA 6.0 Gb/s controllers, while those with two cards must live with 2.5 Gb/s bandwidth limits on USB 3.0 and SATA 6.0 Gb/s controllers. Neither of these sacrifices is huge or even noticeable on most of today’s hardware, yet anyone trying to future-proof their system could be left cold.
Please please search on google first for i5 HD 5770 (or other model number) problems.
There have been a big number of people experiencing the same problems, others have had the setup's working in 1156 socket rigs of course, I'm not one! ...and had to RMA. the 5770 and one up from it are definitely the better choice at the moment in terms of performance/specs/features IMO step down to 4770 i think it is if you want roughly the same specs but without DX11/eyefinity at a lower cost. But I'm regrettably having to go for a geforce now after many lost hours reading countless posts of people with unusable cards in these rigs, suffering from the exact same problems that have been happening for around 5 months now with no solution other than RMAs...
Also keep you eye out in people's signatures all over the place, how many people have HD 5770/5750 etc in their rigs that are running 1156 architecture? I've just found my first one... but if you don't see many like I don't seem to, ask why is that, when they're the best cards on the face of it at the moment, bang for buck, midrange.