Some Questions about the GTX 760

Jul 27, 2013
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Hey Guys!

Currently, I'm using a ~3 year old PC (it's just a Dell Workstation-Class Precision T3500) with an Intel Xeon CPU (Windows Properties says: W3505) @ 2.53 GHz, 8 GB of RAM, and a 1 GB Diamond Radeon 6450 Graphics Card. I'm using this machine for editing and gaming and have had major issues playing back and rendering full HD video clips with Windows Media Player and in my Video Editing Software, Pinnacle Studio 17. I know Pinnacle Studio 17 has full support for CUDA and thought that I'd drop a GTX 760 into one of two PCI-E 2.0 x16 slots and had some questions. Here's what I want to know:


In my current system, I have a 525W PSU. That just etches out the minimum PSU wattage on the 760... With the specs above, will I be able to run a GTX 760? I have one open 6-Pin power connector and 2 open SATA power connectors that I'd buy an adapter to the 8-Pin the 760 needs.

Is the 760 the best option for that kind of money? Or is there an AMD Hawaii/Radeon card out there that outperforms it? The main reasons I'm going nVidia here is for Shadowplay, CUDA, and 4 GB VRAM.

Will a 2nd Generation PCI-E slot bottleneck the 3rd Generation PCI Card? I have searched the web but have not been able to find a solution that was posted within the last year...

I've been considering this card: http://www.newegg.com/Product/Product.aspx?Item=N82E16814130944 because of it's high clock speed and VRAM capacity... Is this the best option? I won't be Overclocking at all and I only have limited space in my Dell Case, so no Windforce Coolers or anything like that...

I have two PCI 2.0 x16 Slots as I said earlier, so would SLI be an option if I upgraded my PSU? I wanted to get into capturing at 1080p on ultra settings with nVidia Shadowplay and maybe try 1440p down the road.

What I was going to do was use this machine for now, then build a really high end machine later:
Intel Core i7 4930k
16 GB
Was gonna go with 2x 770 4 GBs, but decided a single 780 ti (6 GB when it comes out) and maybe SLI later
Some Capable Motherboard
840 Pro
1 TB Black
I know that the Xeon in my current machine is more processing power than any other Core series CPU except maybe that $1k one, but I wanted the newer X79 features (SATA III, PCI-E 3.0, USB 3.0), but perhaps what I have now (after I get a decent Graphics Card) will suit better? If I kept the current machine now and never upgraded to a new PC, I would probably grab a better Graphics Card and PSU and run with that.


Thanks if you've read this far! I'll appreciate any answers or advice for me from you guys!

Thanks!

- Chris
 

CraigN

Distinguished
In short,

3rd Gen PCI-E cards (in single card setups) do not (yet) saturate the PCI-E 2.0 lanes. It's only in SLI where you will notice a bottleneck. (SLI 3.0 > SLI 2.0, basically)

Your motherboard will be the determining factor of how well you can SLI. If both lanes operate on a 16x/16x when SLI'd, you might actually not notice a huge difference between having a PCIE3.0 setup vs a 2.0 setup, but most mobos reduce to 8x/8x in SLI. In PCIE3.0, this half in speed isn't a problem, because it's a faster bus than 2.0, but in 2.0, that's where you'll risk bumping into performance bottlenecking in SLI.


Keep in mind two 760s >= 1 GTX Titan, so if you do decide to upgrade later on and get a 760 now, just buy a second 760, and you'll come very close to that 780 Ti performance without having to drop an additional $700 on top of already having bought a $300 card.