Possible new GPU problems?

[BlinkTwic3]

So I've had the same video card for a few years (Sapphire 6950) and I recently pulled the trigger to upgrade to an XFX R9 280.  It doesn't seem to have trouble in more demanding games like Titanfall, but it stutters and drops frames pretty bad in games like League of Legends/D3.  It even stutters pretty bad when scrolling a web page, I've even had the screen black out for a few milliseconds while scrolling too fast.  Should I RMA the card or anyone know something I don't that can fix it?

EDIT: Forgot to put my PC specs up. Ignore the price on the Mobo

PCPartPicker part list: http://pcpartpicker.com/p/3DOKv
Price breakdown by merchant: http://pcpartpicker.com/p/3DOKv/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3DOKv/benchmarks/

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor  ($224.59 @ OutletPC)
CPU Cooler: Cooler Master V8 69.7 CFM Rifle Bearing CPU Cooler  ($54.98 @ SuperBiiz)
Motherboard: Asus Sabertooth Z77 ATX LGA1155 Motherboard  ($808.76 @ Amazon)
Memory: G.Skill Ripjaws Z Series 16GB (4 x 4GB) DDR3-1866 Memory  ($154.99 @ Newegg)
Storage: Corsair Force Series GT 240GB 2.5" Solid State Disk  ($199.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive  ($54.44 @ Amazon)
Video Card: XFX Radeon R9 280 3GB Double Dissipation Video Card  ($269.99 @ NCIX US)
Case: Corsair 750D ATX Full Tower Case  ($129.99 @ Micro Center)
Power Supply: Corsair Professional 750W 80+ Gold Certified Semi-Modular ATX Power Supply  ($149.95 @ Amazon)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit)  ($89.98 @ OutletPC)
Monitor: Asus VS24AH-P 24.0" Monitor  ($217.58 @ Newegg)
Total: $2355.24
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-05-04 14:45 EDT-0400)

[Cubit481]

So I've had the same video card for a few years (Sapphire 6950) and I recently pulled the trigger to upgrade to an XFX R9 280.  It doesn't seem to have trouble in more demanding games like Titanfall, but it stutters and drops frames pretty bad in games like League of Legends/D3.  It even stutters pretty bad when scrolling a web page, I've even had the screen black out for a few milliseconds while scrolling too fast.  Should I RMA the card or anyone know something I don't that can fix it?

the scrolling problem is bcoz of ur internet or browser i think...   ...and which cpu u use...??

[BlinkTwic3]

3570k, the scrolling problem never happened with my old GPU, which I can see right now because my girlfriends PC has my old GPU in it.

[westy28]

3570k, the scrolling problem never happened with my old GPU, which I can see right now because my girlfriends PC has my old GPU in it.

Hey man, i have the exact same problem. I just upgraded to a new Sapphire 280x and i get those drops in everything i do too. I dont think its my cpu either (AMD FX 8320), i suspect its because i have a bad quality 600w PSU.

 

What PSU are you using?

[BlinkTwic3]

Hey man, i have the exact same problem. I just upgraded to a new Sapphire 280x and i get those drops in everything i do too. I dont think its my cpu either (AMD FX 8320), i suspect its because i have a bad quality 600w PSU.

 

What PSU are you using?

 

I'm using a Corsair HX750. I feel like an upgrade to a newer card shouldn't give me less performance than a 2 generation old card.

[bhayes547]

Have you tried completely wiping your drivers and re-installing them? There could be issues with the old drivers from the 6950 and the new drivers for the r9 280.