Question GPU inspecting program not showing the right VRAM

Hashem_1

Honorable
Aug 6, 2016
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Specs (using speccy summary):
Operating System
Windows 10 Pro 64-bit
CPU
AMD Ryzen 7 3700X
Matisse 7nm Technology
RAM
16.0GB Dual-Channel Unknown @ 1596MHz (16-18-18-36)
Motherboard
ASRock B450 Steel Legend (AM4)
Graphics
VG248 (1920x1080@144Hz)
4095MB NVIDIA GeForce RTX 3060 Ti (Gigabyte)
PSU(not speccy)
Seasonic Focus GX-650 650W 80+ Gold Full-Modular PSU
So I've been using this GPU for almost a year and 6 months now with no problems whatsoever but recently after opening Speccy, I've noticed that the description shows that my GPU's memory is 4 GB RAM and not 8 GB RAM, and the ram too which is 2x "HyperX Fury 8GB RGB 3200 MHz DDR4 Memory"
Is this a program fault or am I actually not using the other half of my VRAM because of some fault in the GPU?
I'm a hardcore PC user and for every game, I enter and I immediately open the setting and set everything to ultra, why? after finally getting a powerful GPU I do it because I can I guess, but that isn't working anymore.
I've sensed that recently for some unknown reason I've been getting HUGE FPS drops on some games that I used to run smoothly(IE: New world, WOW, rdr2). my best guess is that the GPU suddenly switched from 8gb to 4gb and everything got fked, or just the fact that i haven't cleaned the PC since getting the GPU, and it's all dusty inside(which wouldn't explain the memory issue).

any thoughts?
 

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