Well no GPU offers a set resolution across all games, it's going to be different for each game, and even within that game, different depending on where you set the rest of your graphics settings, a GPU that can run at 1080p ultra settings with 60 fps will usually be able to run the same game at 1440p with high settings or a mix of medium and high settings for instance.

To give you a general idea of PC GPU performance, the tech site I use for comparing GPU's test each of them in a test suite of 15 different games, 9 of which are rasterization heavy and 6 of which have ray-tracing options (different GPU's have different strengths, AMD GPU's tend to be better in rasterization within the same price range, while Nvidia far outperforms AMD in raytracing since AMD has yet to add dedicated ray tracing cores to their GPU's like Nvidia has). These are some of the GPU's more powerful than your current 1660 Super that should also work on your 600 watt power supply:

Here are the results:

1080p, ultra settings, rasterization games, average framerate results (typical price for a new card currently in parenthesis)

Nvidia

• 1660 Super- 45.3 fps
• 3060- 73 fps ($290)
• 4060- 84.9 fps ($300)
• 4060ti- 102 fps ($400 for 8 GB of GDDR6, $480 for 16 GB)
• 4070- 123 fps ($550)

AMD

• 6600- 67.3 fps ($210)
• 6600 XT- 78 fps ($230)
• 6650 XT- 80 fps ($250)
• 7600- 82.3 fps ($260)
• 7600 XT- 90.5 fps ($340)

Intel

• Arc a580- 65.1 fps ($170)

1080p, ultra settings, ray tracing games, average framerate results

Nvidia

• 1660 Super- Not tested because it's so bad at ray tracing that it's pointless to test
• 3060- 34.1 fps
• 4060- 41.7 fps
• 4060 ti- 53 fps
• 4070- 69.4 fps

AMD

• 6600- 20.7 fps
• 6600 XT- 24.8 fps
• 6650 XT- 25.6 fps
• 7600- 31.3 fps
• 7600 XT- 35.1 fps

Intel

• Arc a580- 32.7 fps

You just download more RAM right? /Kappa.

Yeah I could probably just watch a Youtube video.

So I gather from that, the GPU I have now would struggle on demanding games above 1080p/60fps?

What sort of GPU would I need for something capable of matching Xbox Series X?

How would you rate the rest of the specs?

I honestly just sort of winged this one, found a PC, looked decently powerful, changed a few things and got it, Lol.

Oh right, sure yeah, I forgot how much you can customise the graphic settings, Lol.

Interesting. Hmm. I definitely would care about framerate more.

What's everyone's Xbox eXit plan? @Spade 

I plan on riding the rest of this gen out, already bought a Series X (resell honestly not worth it anyways) and i'll keep it for Xbox BC and whatever console gamepass games that aren't on PC gamepass. Getting a gaming PC next gen and possibly a PS6

Anyways, I'll still be looking forward to xbox IPs and posting in here. Just a weird time to be an xbox fan

Better get my trophy unlocks when I boot up Sea of thieves and Halo on PS tho lol

Yeah, you could always adjust settings down to get a smooth fps experience on modern games with your GPU though.

But I think if you throw in an RTX 4060, you'd be around Series X level.

I say around, because there seems to be no clear winner in tests between the 4060 and SX/PS5, which mainly seems to come down to the lack of VRAM in 4060. (It has 8 GB, while it's predecessor, 3060, had 12 GB.) And the fact that games are easier to optimize for consoles that all have the same set specs.

But unless you make side-by-side comparisons, you're just going to feel like you are playing on a current gen system like Series X.

Everything else in your system looks quite good. (Just make sure to install your games on your OS Drive instead of the Hard Drive)

No exit plan.

I'm hoping they transition to a ecosystem similar to Android/Apple is if Hardware is not in the future.

As for what I have - not sure what to do with my Series S - might make it a emulation station but my PC does a hell of a better job for that.

My Series X - I'm gonna continue playing it mainly with b/c games that I missed out in the Xbox and 360 years - but will also dwell into first party titles from MS across all the platforms.

The fact not all older first-party Xbox games are available on PC in still baffling to me. Only way to play Fable 2 and 3 is via BC on Xbox. Same with not all Gears of War games on PC. A Fable trilogy and Gears collection released on Xbox Series X|S and PC make so much sense to do. 

I still consider myself in the Xbox ecosystem even though I play just everything on PC nowadays. I play Xbox games via Game Pass on PC. And yes, I still have my Xbox Series S, which I use for indie games or when I don't want to game on my PC. I've realized though I should just get a long enough HDMI cable so I could plug my TV into the PC. 

Makes even more sense if they are bringing future games to Playstation/Nintendo

As soon as Halo is on PS5, I'll jump ship. Until then, I stick with Xbox. 

Edit* I'll add Gears, Fable, and Forza as well. The OG Xbox classics.