Graphical upgrades

[Mito Man]

Firstly use an overlay like MSI afterburner and play some games to see where the bottleneck is. Then you can see what you need to upgrade, the 8gb of ram will definitely be one but also check temperatures.

Processor - this can be upgraded to anything better that is compatible with your existing socket, like an i7 or i9 of the same age - probably not worth it though but you might find something cheap on eBay.

Ram - look on crucial, you may be able to get something faster. You have to tell the Bios though.

Graphics card - can be upgraded to anything within reason but check your physical space, cooling etc. Also you need to check how many watts your power supply is and the physical connector it has to the graphics card.

The limitation with these off the shelf builds is usually the power supply and space for cooling as sometimes they have proprietary stuff. It’s not as easy as they’re not very modular.

[Shlergen]

An LLM will do the hard work for you: What would be a sensible upgrade for my PC based on the below spec (in the UK)

Summary (what I’d do in your exact situation)
Priority order:

Upgrade GPU → RTX 4060
Add 1–2TB NVMe SSD
Consider 32GB RAM later

Leave CPU alone for now—it’ll hold up fine with a mid-range GPU.

Graphics Card (BIGGEST performance gain)
Your GTX 1660 SUPER is now the main bottleneck.
Recommended upgrades (UK mid‑2026 value picks):

Best value:
RTX 4060 / RX 7600
Stronger option:
RTX 4060 Ti / RX 7700 XT

Why upgrade:

2–3x gaming performance increase
DLSS / FSR support = smoother modern games
Better for 1440p if you plan to upgrade monitor later

Rough UK pricing:

RTX 4060: ~£270–£320
RX 7600: ~£240–£300
RTX 4060 Ti: ~£350–£420

Recommendation: RTX 4060 = safest bang-for-buck upgrade for your system.

I would suggest adding the memory before the SSD though, unless he's short of space as he's already on NVME.

[Carlos]

Thanks chaps.

Crucial site to find suitable 2x16gb card specs and an RTX 4060.

Looks to be circa £300 all in 2nd hand on eBay.

[Beany]

Make sure you get a 16gb graphics card, it'll last longer the way games are going with VRAM usage.

But yeah, GPU is all you really need in that - 10th gen intel is broadly still fine for games, and 16gb of RAM is broadly OK too as long as you're not streaming.

The only concern I'd have would be if the HPs power supply can be made to fit the Nvidia card - it'll come with a 12VHPR adapter that'll likely want two 8pin cables. Worst case, a mid range power supply pushing 650w (under £100, I'm sure) will have the punch and connectivity to do it - one of the downsides of prebuild (especially Dell, HPs etc) is that they often use a power supply that has just enough for what they were specced with....