Gaming at 1440p on a 4k capable monitor vs. 1440p on a native 2560x1440 display

[No_Nrg]

If I buy a 4k monitor and run it at 1440p in games will i notice any degradation of image quality due to downscaling vs running 1440p on a native 2560x1440 display?

Reason being I'm building a rig and have the horsepower to run 1440p but not 4k currently. I plan on getting a 2nd gtx980 for SLI eventually and would like the monitor to support 4k gaming.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor
CPU Cooler: NZXT Kraken X41 106.1 CFM Liquid CPU Cooler
Motherboard: MSI Z97-GAMING 5 ATX LGA1150 Motherboard
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2133 Memory
Storage: Samsung 840 EVO 250GB 2.5" Solid State Drive
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive
Video Card: PNY GeForce GTX 980 4GB Video Card
Case: NZXT H440 (Black/Red) ATX Mid Tower Case
Power Supply: XFX XTR 750W 80+ Gold Certified Fully-Modular ATX Power Supply
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-01-13 16:02 EST-0500

 

[bootcher]

No you will not have scaling, the monitor will adjust to the rsolution you set for it, 1080p or 1440p or whatever resolution you choose. You can even run windows in 4k and set the gaming resolution differently.

 

[vegaspimp22]

no i have two 970s and they run most games at 4k ultra settings however the newest games like dying light i have to choose between 4k low settings or 1440 at ultra settings. i switch back and forth all the time. no degredation. However two 980s should be able to rock 4k no problem for about the next year i am presuming. at only about 40-50 fps at ultra. I returned many monitors before settling on the samsung UHD 39" for only about $450. great deal..