More RAM Won't Fix Your FPS (And Neither Will a 4090)
I've optimized over 3,000 PCs at this point.
And I can tell you the two things that almost never fix low FPS:
Buying more RAM
Buying a better GPU
I know that's not what you want to hear — especially if you just spent money on one of those. But I've seen it too many times. Guy drops $400 on a 32GB RAM kit, opens Warzone, still gets 80 FPS with stutters. Guy upgrades from a 3080 to a 4090, fires up CS2, still can't hold 300 FPS.
The hardware isn't the problem. The setup is.
The RAM Myth
Here's what people think: more RAM = more FPS. It feels logical. RAM is memory. Games use memory. More memory = game runs better.
Here's what's actually happening on most gaming PCs:
You already have enough RAM. You're just running it wrong.
Almost every gaming title — Warzone, Fortnite, Valorant, CS2 — runs perfectly fine on 16GB. That's the sweet spot. 32GB is overkill for pure gaming. 64GB is a content creator build, not a competitive gaming build.
What actually kills performance related to RAM:
Running RAM at its stock speed (2133MHz or 2400MHz) instead of its rated XMP/EXPO profile (3600MHz, 6000MHz, etc.)
Single-channel instead of dual-channel (one stick instead of two)
RAM that's incompatible with the CPU's memory controller and running unstably in the background
I had a client last month — Ryzen 7 7800X3D, 32GB of DDR5. Should be destroying Warzone. He was getting 120 FPS with random freezes every few minutes. His RAM was running at 4800MHz stock instead of its rated 6000MHz. Enabled EXPO in BIOS, set the correct timings, restarted. 260 FPS, zero freezes.
He didn't need more RAM. He needed his existing RAM to actually run correctly.
The fix is free. The upgrade was never necessary.
The GPU Myth
This one's more expensive when people fall for it.
"I need a better GPU to get more FPS."
Sometimes true. Most of the time? Not even close.
I run a 9800X3D + RTX 5080 and I get 300+ real frames in Warzone without frame generation. That's the benchmark for top-end hardware. But here's what I see constantly: people with a 4080 or 4090 sitting at 150 FPS, GPU usage bouncing between 40–70%, wondering why their expensive card isn't doing anything.
That's not a GPU problem. That's a CPU bottleneck or a software problem.
When your GPU usage is low but your FPS is also low, your GPU isn't the limiting factor — something else is holding it back. Could be:
CPU bottleneck (especially at high FPS targets in CPU-heavy games like CS2 and Valorant)
Wrong power plan (Windows defaulting to balanced instead of high performance)
GPU drivers not properly installed or running on top of old conflicting drivers
In-game settings misconfigured (render resolution at 110%, ray tracing accidentally on, shader cache issues)
Background processes stealing CPU time from the game
I had a client with a 4090 getting 80 FPS in Valorant. 80 FPS. On a 4090. Valorant is not a demanding game — a 3060 should handle 300+ FPS in Valorant easily. His issue was a combination of Windows power plan set to balanced and a messy driver install. Fixed both in about 20 minutes. He went from 80 FPS to 420 FPS. Same hardware.
He almost bought a new CPU because he thought that was the bottleneck.
So What Actually Fixes FPS?
Before you spend a single dollar on hardware, check these:
Windows side:
Power plan set to High Performance or Ultimate Performance
Game Mode on, Hardware-Accelerated GPU Scheduling enabled (if on NVIDIA RTX or AMD RX 6000+)
Unnecessary startup programs disabled
Xbox Game Bar and background recording off
GPU side:
Clean driver install (DDU in safe mode, then fresh driver — not just updating over the top)
NVIDIA Control Panel or AMD Software set for maximum performance, not "let the application decide"
Frame cap set correctly (3-5 frames below your monitor's refresh rate with NVIDIA Reflex or equivalent)
BIOS/RAM side:
XMP or EXPO enabled — this alone can add 30–50 FPS in CPU-limited scenarios
Check you're running dual-channel (two sticks, correct slots per your motherboard manual)
In-game:
Render resolution at 100% (not 110%, not "quality mode")
No unnecessary eye candy: motion blur off, film grain off, ambient occlusion on low or off
V-Sync off (use frame cap instead)
When Hardware Is The Problem
I'm not saying hardware never matters. Sometimes it is the bottleneck. That's why I offer a free PC check before anyone pays me anything — because if your i5-8400 is genuinely maxed out in Warzone, no amount of optimization is going to squeeze 200 FPS out of it. I'll tell you that upfront.
But in my experience doing this full time since 2021? Legitimate hardware bottlenecks are maybe 20–30% of the cases I see. The other 70–80% is software, settings, and configuration.
People are spending thousands of dollars on the wrong solution.
The Bottom Line
If you're getting bad FPS in Warzone, CS2, Valorant, or Fortnite — before you buy anything:
Get your current setup properly optimized first.
If you've got a halfway-decent GPU (RTX 3060 or better, RX 6600 or better) and you're still struggling with FPS, the hardware is almost certainly not your problem.
The problem is that nobody set your PC up correctly in the first place.
That's literally what I fix every day. If you want me to take a look, the PC check is free — I'll tell you honestly whether it's a software problem I can fix or a hardware problem you need to solve first.
No upselling. No BS. Just what's actually going on with your PC.
