Quick question. I plan on building a desktop that uses a i5-760, 4 gb DDR (1600), and a GTX 460. Eventually I'll pick up another GTX 460 for SLI, and I'm aware that the power consumption becomes even more efficient in SLI. I have heard people say that 650 watt is more than enough for GTX 460 in SLI, but are they also factoring in other factors such as the CPU and RAM??
In short, with an i5 CPU, DDR3 RAM, and GTX 460 in SLI; would it be a good idea to purchase a 650 watt PSU or a 750??
ye the 1gs are better but if your sliing them i dont think youll notice much of a diff...sli is pretty overkill id say unless your using more then 1 monitor...but im no expert ha just got into soupin up my comp a few months ago..still learnin mad shitt
I have a slight concern, Nvidia doesn't have the Corsair 650watt PSU on their certified list. And I've been reading that the 650 watt Corsair needs to use a molex-to-PCI adapter when in SLI with the GTX460. Will using the adapter diminish some performance?
Since I saw that the TX model has only 2 PCI-e power adapters what I'm asking is, is that enough for SLI? Or will I need the HX version? And if TX can run x2 460 in SLI, would the HX model boost performance? Or just be a waste of money for these particular GPUs?
Thanks in advance, this is helping me out so much.
You will need four for 2x GTX 460 SLI. And the Corsair 650TX only has two.
--> But you can add two more PCI-e adapters to get the right amount of power into both cards.
Most card come with a moles to PCI-e adapter that let you hook up 2x4pin molex leads to get you the extra 6pin PCI-e power lead.
In this example the EVGA card has 2 of the molex to PCI-e adapters in the accessory pack. They're the 2nd and 3rd wired items moving from the left front, laying in the foreground of the accessory pack items.
And if TX can run x2 460 in SLI, would the HX model boost performance? Or just be a waste of money for these particular GPUs?
No increase in performance.
For $20 extra the 650HX gives you 80Plus Bronze efficiency vs just 80Plus for the TX. It also gives you hybrid modular cables. You can attach only the cables you need, giving you a neater interior, which is important to some people with windowed cases. And you also get the 4 PCI-e video card power leads.
There are things you can do to tidy up the interior of a case using the 650TX and the 2 extra molex-to-PCI-e adapters you'd need to use. You could wrap them in tape to more closely match the other cables, use shrink wrap tubing, etc. You can get those items at case mod shops like Xoxide or FrozenCPU.