Question Buying Advice

[Martin Dobson]

I'm looking to spend £500-£600 on a gpu used or new dont mind. I only play single player games with the exception got GW2 which doesnt need much gpu power, my display res is 3440x1440 and I have a 750w psu.

I've looking at one of these;
3080 (used)
3080 ti (used)
4070 (new)
AMD 7800xt (new)

I did look at the 6090xt but I would require a 1000w psu and thats another £100+ that I would rather not spend.

The issue I have all review seems to concentrate on the core 3 i.e. 1080p, 1440p and 4k and mine sits somewhere between the latter 2.

Any help on this would be great as I seem to be going round in circles trying to decide.

Thanks
martin

 

[Eximo]

If you think you need a 1000W PSU for a 6900XT (300W) or 6950XT (335W) then you should know that the 3080 uses 320W and the 3080 Ti uses 350W. 750W PSU is cutting it close on all of them, and it must be a very high end PSU to avoid power spike issues.

A lot depends on the power requirements the rest of your system has. If you have a late model Intel chip pulling 220W, then yes, you should invest in a new PSU. If you have a 65W Intel or AMD i5, then it would likely be fine.

If the 3080 and 3080 Ti are similarly priced, certainly the 3080Ti. You can always set a power limit on the cards. I have my 3080Ti running at 280W for heat output reasons only. My old RM850x can handle the full load.

4070 and 7800XT are fairly comparable in rasterized performance. 16GB vs 12GB though, so you might get better longevity out of the AMD card.

@3440x1440 I would go for as much GPU horsepower you can afford that has the best performance in your favorite titles when you are trying to narrow things down. 3080Ti can look good on paper, but DLSS3 may be a good reason to take the 4070. Single player games are not latency dependent, so no reason not to use frame generation techniques.

 

[Martin Dobson]

If you think you need a 1000W PSU for a 6900XT (300W) or 6950XT (335W) then you should know that the 3080 uses 320W and the 3080 Ti uses 350W. 750W PSU is cutting it close on all of them, and it must be a very high end PSU to avoid power spike issues.

A lot depends on the power requirements the rest of your system has. If you have a late model Intel chip pulling 220W, then yes, you should invest in a new PSU. If you have a 65W Intel or AMD i5, then it would likely be fine.

If the 3080 and 3080 Ti are similarly priced, certainly the 3080Ti. You can always set a power limit on the cards. I have my 3080Ti running at 280W for heat output reasons only. My old RM850x can handle the full load.

4070 and 7800XT are fairly comparable in rasterized performance. 16GB vs 12GB though, so you might get better longevity out of the AMD card.

@3440x1440 I would go for as much GPU horsepower you can afford that has the best performance in your favorite titles when you are trying to narrow things down. 3080Ti can look good on paper, but DLSS3 may be a good reason to take the 4070. Single player games are not latency dependent, so no reason not to use frame generation techniques.

Thanks for the quick reply, I'm only got a AMD Ryzen 5 5600 1 ssd and 1 nvme so its not power mad.. and I was basing the psu based on what the card manufacturers where saying. Interesting point about DLSS3 as i've not thought about that

 

[Kona45primo]

Take a look at the YouTube reviews, if you need RT, 4070.

If you want similar performance but to save a few bucks, 7800xt.

Although best bet for fps would be the 6950 & new PSU. Remember, you can sell your old stuff.

 

[artk2219]

I would go for the 7800XT or 6900, those should be alright with your 750W PSU. Peak power consumption gaming at 100% 24\7 with even a 5800X3d is less than 600W. Ideally you want to keep your PSU within 70 to 80% load for max life so even if you upgrade to a 5800X3D in the future with 64gb ram, you should be fine. This does depend on making sure you have a decent quality psu though, thats just a general thing, you never want a potential time bomb powering everything, what power supply are you using? So long as its decent you should be fine for anything short of a RX 6950, RTX 3090TI or RTX 4090, TECHNICALLY you could run those, but honestly its better safe than sorry due to their high power consumption.

AMD Ryzen 7 5800X3D AMD Radeon RX 6950 XT - PSU Calculator - Build 8HcnQ7

AMD Ryzen 7 5800X3D AMD Radeon RX 6950 XT - Power Supply Calculator Build 8HcnQ7

outervision.com

AMD Radeon RX 7900 XT review

It was along wait, but the first rDNA3 GPU architecture graphics cards for the consumer market have arrived. In this review we'll test the Radeon RX 7900 XT.... Hardware setup | Power consumption

www.guru3d.com

 

[Martin Dobson]

I would go for the 7800XT or 6900\50, those should be alright with your 750W PSU. Peak power consumption gaming at 100% 24\7 with even a 5800X3d is less than 600W. Ideally you want to keep your PSU within 70 to 80% load for max life so even if you upgrade to a 5800X3D in the future with 64gb ram, you should be fine. This does depend on making sure you have a decent quality psu though, thats just a general thing, you never want a potential time bomb powering everything, what power supply are you using?

AMD Ryzen 7 5800X3D AMD Radeon RX 6950 XT - PSU Calculator - Build 8HcnQ7

AMD Ryzen 7 5800X3D AMD Radeon RX 6950 XT - Power Supply Calculator Build 8HcnQ7

outervision.com

Thanks used one of those pus calculator apps and seems with everything I have and a 6950xt its around what you said shy of 600w. I've got a what I think is a good psu GIGABYTE P750GM 750w. I am leaning towards the 6950xt, just I know the nvida's RT performance is a lot better and I'm not sure if AMD driver release have improved, its about 6 years since I last amd gpu.

 

[Order 66]

I know this is outside your budget but if you could possibly include a 7900xtx you would have to upgrade your PSU but RT performance is similar to a 3090.

 

[artk2219]

Thanks used one of those pus calculator apps and seems with everything I have and a 6950xt its around what you said shy of 600w. I've got a what I think is a good psu GIGABYTE P750GM 750w. I am leaning towards the 6950xt, just I know the nvida's RT performance is a lot better and I'm not sure if AMD driver release have improved, its about 6 years since I last amd gpu.

Oh no, depending on the revision of that power supply, it could quite literally be a potential bomb. That specific Gigabyte model had some units that would pop and potentially catch fire if they were hit with a high load, when did you buy that unit?

Gigabyte Releases Statement On Exploding PSUs

'Cause baby, you're a firework

www.tomshardware.com

 

[Martin Dobson]

Oh no, depending on the revision of that power supply, it could quite literally be a potential bomb. That specific Gigabyte model had some units that would pop and potentially catch fire if they were hit with a high load, when did you buy that unit?

Gigabyte Releases Statement On Exploding PSUs

'Cause baby, you're a firework

www.tomshardware.com

Its okay, not bought anything yet, I will give it a month to see what the reviews are of the RX7800XT

Oh no, depending on the revision of that power supply, it could quite literally be a potential bomb. That specific Gigabyte model had some units that would pop and potentially catch fire if they were hit with a high load, when did you buy that unit?

Gigabyte Releases Statement On Exploding PSUs

'Cause baby, you're a firework

www.tomshardware.com

Thanks for the heads up, had this for nearly 2 years, checked the serial numbers and it doesn't match those that where effected, so I'm assuming I'm ok

 

[Why_Me]

https://uk.pcpartpicker.com/product/GYfxFT/xfx-speedster-qick-319-core-radeon-rx-7800-xt-16-gb-video-card-rx-78tqickf9

 

[Martin Dobson]

Take a look at the YouTube reviews, if you need RT, 4070.

If you want similar performance but to save a few bucks, 7800xt.

Although best bet for fps would be the 6950 & new PSU. Remember, you can sell your old stuff.

thanks, might wait a month see if NVidia react to the 7800xt and reduce the 4070 mainly for DLSS3 and better RT