You re definitely going to need to upgrade the power supply in either case. Also if you have the default 8GB of RAM you will want up bump that up to at least 16GB. I also am not sure but Lenovo is notorious for using proprietary designs so upgrading your power supply may not be so easy. I'm not sure your board has a 24pin ATX connector for instance and you may need an adapter for any new power supply to work. If you could open the side panel and check that would be a start. Your case also looks very cramped so a RTX 3080 or 3080 Ti may not even fit to begin with. 
 
I would look in the RTX 3070 or RTX 3060 Ti range. Neither would require a PSU upgrade and their smaller footprint would make fitting it in your case easier. 

Thank you for the response.
 
I have already upgraded RAM to 32GB, this is the screenshot of specification of my pc for you to see config. Can you let me know how to find out if my pc has 24pin ATX connector or not? 
 
The reason i thought of upgrading it to 3080 is that I could run all latest games in 4k with good fps and don't have to upgrade at least next 3 to 4 yrs. Is it not possible to fit in 3080 in the case, is there a way to check and confirm that?
 


 

I think you should type that a little louder just in case the guy over the road didnt hear it. But its all true.

weasel333
I think you should type that a little louder just in case the guy over the road didnt hear it. But its all true.

THANKS!
 

Donradeon
Spec sheet for your PC: https://psref.lenovo.com/syspool/Sys/PDF/Lenovo_Desktops/ideacentre_Y900/ideacentre_Y900_Spec.PDF 
 
You either have the 625 watt psu or the 450 watt psu. I don't know if your motherboard has a standard 24 pin connector or not. You'll need to at least upgrade your power supply to handle a card that powerful. 
 
You could get by fine with a 3060ti. I wouldn't recommend any higher with your stock specs. Definitely consider swapping into a better case as well. 

I mean, maybe a 3070 FTW3 (NON ti), if he removes all the crap from the front of the machine - drive cages, box above drive cages (?), the front air filter.  Then installs two very good front intake fans.  Maybe.
 
https://youtu.be/ag5ax0XaVfs?t=268

Donradeon
Spec sheet for your PC:  
 
You either have the 625 watt psu or the 450 watt psu. I don't know if your motherboard has a standard 24 pin connector or not. You'll need to at least upgrade your power supply to handle a card that powerful. 
 
You could get by fine with a 3060ti. I wouldn't recommend any higher with your stock specs. Definitely consider swapping into a better case as well. 

 
I have upgraded RAM to 32GB and have replaced the ssd with 2TB samsung SSD other than that all other components are pretty much stock. I was also planning to upgrade power supply to 1000w and gpu to 3080 and hence thought of checking before buying.
 
Is there a way to check if my motherboard has standard 24 pin connector or not? I am a novice wrt to pc building. 

Flaminjohnny
I don't have much idea on pc building and that was the reason i went with prebuilt pc. Is it possible to reuse anything like buying a new case and using the remaining parts? or do i have to get everything from scratch. I read in Lenovo forum sometime back that it's possible to upgrade to 3080 gpu and its supported provide power supply is upgraded too. 
 
Buying a new pc is currently not an option right now since it costs more than 2.5k for a pc with 3080 GPU, considering the current inflation in price of pc components how much approx would it cost to build a pc with 32GB RAM, and 3080 GPU (12GB or Ti) also is there any chance pc stores assemble pc if i get the components for a service fee? 
 
 

3070 FTW3 would be a great match with the 6700K for 4K or 1440P gaming.  Get a ~$100 name brand 650w PSU and you're all set.
 
To support any modern card, you need to remove the crap from the front of the machine and install two strong front fans.
 
I had a 10400 with a 2080 Ti in a spare PC for a while, it was a good match for 4K gaming.  Just slightly higher performance than a 3070 with 6700K.

Flaminjohnny
I don't have much idea on pc building and that was the reason i went with prebuilt pc. Is it possible to reuse anything like buying a new case and using the remaining parts? or do i have to get everything from scratch. I read in Lenovo forum sometime back that it's possible to upgrade to 3080 gpu and its supported provide power supply is upgraded too. 
 
Buying a new pc is currently not an option right now since it costs more than 2.5k for a pc with 3080 GPU, considering the current inflation in price of pc components how much approx would it cost to build a pc with 32GB RAM, and 3080 GPU (12GB or Ti) also is there any chance pc stores assemble pc if i get the components for a service fee? 
 

 
I don't know for sure without looking inside your PC case, but some of the Lenovo builds have standard ATX motherboards which would swap right into a new case. It's a little daunting to someone new but it's FAR easier than it was back when there were VGA ports, IDE drives, sound cards, lan cards, etc. etc. 
 
You've swapped a few components, I think you'd be fine. Watch a few PC build videos on youtube (RobeyTech builds a PC from scratch pretty often) and you'll get the idea. The hardest part will be plugging in your case cables into the headers on the motherboard for power/reset/usb, and routing your cables. 
 
Microcenter does build PCs for you, I think.. but they might only do it with brand new parts?

I am sharing photo of how it looks, to me it looks like 24 pin connectors but just want get confirmation on that.
 

Fixed his pic.

CraptacularOne

Sajin
Fixed his pic.

Thanks, @ Flaminjohnny, yes that's a 24pin ATX connector. So you should be OK to upgrade to a larger power supply. You will still need to be able to remove the current one and rerun all new cables. I would still suggest a RTX 3070 or RTX 3060 Ti as your target card to upgrade to however. Spending $1200+ this late into 30 series cards life isn't the best idea. The 40 series cards are supposed to be landing later this year. 

I am not sure if the 40 series will face the same demand and scalping like 30 series in which case it might take ages for me to upgrade :) 
 
I am primarily looking to try out MSFS 2020 with decent settings high/30 to 40 fps but with all the info it seems like it will be better to write off this one and plan for a new one which can last for atleast 3 to 4 years without having to do major upgrade. 
 
I want to know how big of learning curve is needed to build a pc and is it wise to get the parts and have an pc builder in my area to assemble it? 
 
I also want to know if AMD is as good as intel with its new cpu series and if AMD has heating issues. Can you also help me with some suggestions on motherboard model (every manufacturer offers different models for same cpu) and case preferably from a manufacturer who gives international warranty.
 
Thank you all for taking time to clarify/answer all my queries.

aka_STEVE_b

Flaminjohnny
The reason i thought of upgrading it to 3080 is that I could run all latest games in 4k with good fps and don't have to upgrade at least next 3 to 4 yrs. Is it not possible to fit in 3080 in the case, is there a way to check and confirm that?
 

Sorry, but
you aren't going to be running games at 4K with any of the components in that rig. 
- the cpu is woefully underpower for a 3080 card or better ,which is what you'd need for 4K gaming.
- the memory specs for the board in a max of 2133 ... no good for a high end cpu / gpu either
- & as mentioned , the psu would need at least a solid 850 W - 1000W to also run a 3080 and above card needed for 4K gaming.
 
Not trying to be rude or mean about your current system,,, just trying to tell it straight.
you would be way better off building an entire new system .... if 4K gaming is your desire.
  

I disagree with some of this. The CPU and RAM are not as important when playing at 4k vs 1080p or 1440p. Being that when you're playing AAA titles at 4k on even the most powerful modern GPUs your potential frame rate is generally going to be in the 60-90 fps range which means your CPU doesn't have to work as hard to feed that frame rate as it would if you had a 3080 that can potentially pump out 200 fps at 1080p. There may be a CPU bottleneck at 4k, but it's not going to be anywhere as bad as if they're playing at a lower resolution.

That said if you're going to invest so much in a GPU with that old of a system I would have a clear upgrade path mapped out for the rest of the system.

One thing that would be really great to know would be the games you want to play that are coming out or the games that you consider the best games you have played in the last decade. It can help to tell us if you go for the highest end games or if you go for gameplay and older titles.

Flaminjohnny
 
This makes sense, i am fine to wait for an year not a problem.

Sorry, I was being sarcastic.  The best time to buy a GPU is always "right now".  The next gen isn't going to be much of a better value or more available and you'll be giving up many months of modern gaming.
 
I'd keep an eye out for EVGA 3060, 3060 Ti or 3070's to drop.  3060's are under $500, twice as powerful as a 970 and would likely run on your stock PSU.  These commodity GPU's always have good resale value if you upgrade in a year.
 
There are 3070 Ti's in stock and they are a nice card, but ~$800 is a bit steep right now and I'm concerned it would drop too much heat in your case at ~300w.

Flaminjohnny
I have a Lenovo idea Centre Y900-34ISZ desktop pc, it has 970 GTX GPU and i am planning to upgrade it with 3080 12GB or 3080Ti, i am not an expert in pc hardware so I am confused on which model to choose since i see there are many models available for both 3080 12GB and 3080 Ti GPUs. Also, I think I need to upgrade my power supply. 
 
I need help with choosing the GPU (3080 12 GB or 3080 Ti) as well as the best model which will be suitable for my pc along with which power supply model will be suitable for my pc. 
 
Appreciate your help on this.

3060 is back in stock at $429.  DO IT OP!!!
 
https://www.evga.com/prod...aspx?pn=12G-P5-3657-KR