So I'm looking to upgrade my RAM from 8GB to 16GB, since it's been a long time coming (thanks Firefox).

And before RAM prices get any higher than they already are. I'm looking at this Corsair Vengeance 16GB Kit (2x8GB), since it's compatible with my motherboard, and I can't go any higher than 16GB on Windows 7 Home Premium anyway. Given that I use my PC mostly for gaming in general use, would I even need more than 16GB in any situation?
But I was also looking at this Corsair Vengeance 8GB Kit (2x4GB), which is the same as the current RAM I have installed now (9-9-9-24 timing, 1.5V voltage, etc.), except in color (mine is Blue, this set is Black, which is the only color available). This also costs less.
The thing is, doing research shows that while I could mix the 8GB Kit with my current set, there's some potential issues. I asked Corsair tech support about this and was told that I could go for the 8GB Kit, but there's no solid guarantee that, despite the tech specs being the same, ALL of the RAM sticks will play nice together. Would that ever be worth the risk to just save some money?
Also, I'm seeing that there would be some performance differences between 2 sticks vs. 4 sticks, as well as putting more pressure on the memory controller. But how much lower would the performance of 4x4GB sticks be vs. 2x8GB sticks? I've seen some people say that it's negligible, but if it's a heavy hit, then I'll just go for the 16GB Kit. On top of that, my motherboard supports Dual-Channel memory, but not Quad-Channel.
Any help making a choice here would be appreciated.

And before RAM prices get any higher than they already are. I'm looking at this Corsair Vengeance 16GB Kit (2x8GB), since it's compatible with my motherboard, and I can't go any higher than 16GB on Windows 7 Home Premium anyway. Given that I use my PC mostly for gaming in general use, would I even need more than 16GB in any situation?
But I was also looking at this Corsair Vengeance 8GB Kit (2x4GB), which is the same as the current RAM I have installed now (9-9-9-24 timing, 1.5V voltage, etc.), except in color (mine is Blue, this set is Black, which is the only color available). This also costs less.
The thing is, doing research shows that while I could mix the 8GB Kit with my current set, there's some potential issues. I asked Corsair tech support about this and was told that I could go for the 8GB Kit, but there's no solid guarantee that, despite the tech specs being the same, ALL of the RAM sticks will play nice together. Would that ever be worth the risk to just save some money?
Also, I'm seeing that there would be some performance differences between 2 sticks vs. 4 sticks, as well as putting more pressure on the memory controller. But how much lower would the performance of 4x4GB sticks be vs. 2x8GB sticks? I've seen some people say that it's negligible, but if it's a heavy hit, then I'll just go for the 16GB Kit. On top of that, my motherboard supports Dual-Channel memory, but not Quad-Channel.
Any help making a choice here would be appreciated.
My Computer
At a glance
Windows 7 Ultimate x64Intel Core i5-3570 CPU @ 3.40GHzCorsair Vengeance Low Profile 16GBSapphire NITRO+ Radeon RX 480 4GB
- Computer type
- PC/Desktop
- Computer Manufacturer/Model Number
- Custom
- OS
- Windows 7 Ultimate x64
- CPU
- Intel Core i5-3570 CPU @ 3.40GHz
- Motherboard
- ASRock Z75 Pro3
- Memory
- Corsair Vengeance Low Profile 16GB
- Graphics Card(s)
- Sapphire NITRO+ Radeon RX 480 4GB
- Screen Resolution
- 1920x1080
- Hard Drives
- Crucial MX500 SSD (C:)
Western Digital 1TB (D:)
Western Digital 1TB (E:)
Western Digital 1TB (F:)
- PSU
- Corsair CX 550M (550W)
- Case
- Zalman Z9
- Cooling
- ARCTIC Freezer 34 eSports DUO Edition
- Keyboard
- Corsair K70 LUX RGB Rapidfire
- Mouse
- Logitech G502 Proteus Spectrum
- Internet Speed
- 150/150
- Antivirus
- ESET NOD32 Antivirus
- Browser
- Mozilla Firefox Quantum 67.1 (64-bit)