4080 cpu bottleneck

Soldato
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3 Jan 2003
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I was looking to purchase an AM5 build based on a 7600x and RTX 4070ti

However for approx £200 less I can get a 4080 and 5700x

I’ve looked at few bottleneck calculators and got some fairly different results based on gaming at 1440p high/ultra settings.
Some quoting 4.7% and some considerably higher.

There is also the option of replacing the 5700x with a 5800x3d for £150 extra.

Monitor is 1440p 240hz
 
What CPU do you have now?
In gaming terms there's virtually zero difference between the 5700x and 5600 (non x) so you might want shave a few extra pounds off there as well and I dont see any evidence to suggest it would bottleneck a 4080.

With AM5 board prices and DDR5 prices being so high currently, I think you are looking at the right options in terms of bang for buck. DDR5 also offers little to no benefit for gaming either, actually even worse in some ways with high timing RAM kits.

I recently went from a 5600x to a 5900x just because the used market chips are so cheap and have seen no perceivable difference in terms of gaming with my 3080Ti which just shows me the 5600's have a lot of legs left in them yet.
 
What CPU do you have now?
In gaming terms there's virtually zero difference between the 5700x and 5600 (non x) so you might want shave a few extra pounds off there as well and I dont see any evidence to suggest it would bottleneck a 4080.

With AM5 board prices and DDR5 prices being so high currently, I think you are looking at the right options in terms of bang for buck. DDR5 also offers little to no benefit for gaming either, actually even worse in some ways with high timing RAM kits.

I recently went from a 5600x to a 5900x just because the used market chips are so cheap and have seen no perceivable difference in terms of gaming with my 3080Ti which just shows me the 5600's have a lot of legs left in them yet.
4770k had it since 2013/14 only upgrade that I have do to my current pc is added a rtx 2060 and nvme.

So it’s a total rebuild for approx £1700 - £2000, which is why I looking at AM5, but the temptation of a 4080 over a 4070ti got to me! Lol
 
If you were playing at 4K I'd say get the 5700x, but as it's 1440p, with such a high end GPU you could end up benefitting a fair bit from the 5800x3d.

Depends really. If you're going to stick to that hardware config for a few years it's great, if you like to upgrade every year I'd spend the extra on the AM5 platform.
 
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hmm, 7900xtx vs 4070ti
I'm not convinced the 7900xtx is better. no doubt it's faster but then at 1049 it's 32% more expensive than a 4070ti, which you can get for £799. coupled that.
tech4gamers did a side by side, and his av fps led to the 7900xtx being about 11.6% ahead(games tested at 1440p),
4070ti av fps 117.5= £6.8 per frame
7900xtx av fps 132=£7.95 per frame
so bang for buck the 4070ti is better as 7900xtx costs £1.15 more per fps
just looked at techspot and they had 181 v 152 so £5.79 cost per frame 7900xtx v £5.25 for 4070ti, so diff narrowed, but 4070ti still cheaper cost per frame
Also consider the 7900xtx drew 347.5w av compared to 232.8w on the 4070ti so the 7900xtx uses 58% more power(or 114.7w)..wow, bit of maths 31.8p kwh up to mar 2023 in uk..
so my son does 25hrs a week gaming according to my weekly microsoft update, or 1300 hrs a year..times that by 114.7= 149110w extra to use the 7900xtx..(or 149.11kw)..cost that is 149.11x0.318= £47.42 a year more to run the 7900xtx than the 4070ti(or £142 roughly over 3 years making the 7900xtx £392 more expensive over a 3 yrs lifecycle)...seeing as electricity prices in uk going up again in april, that's only going to increase. so depending how much gaming you do, actual cost of running card should be factored into purchase now seeing as electricity is so expensive...only looked at this myself after techtesters on yt started going through numbers
techspot had complete power draw but diff was 111w so actually very similar
there's no denying nvidia 4000 series is more efficient than amd's offerings at the mo..interestingly the 4080 used about 70w less power gaming than the 7900xtx...same methodology that means for same hours played is £28.94 diff, or roughly £87 over 3 years. add the electricity cost to price of the 7900xtx and you're at £1136, not that far off a 4080, which has much better raytracing and better productivity use, so should fetch more 2nd hand. If nvidia do drop price of 4080 by £100, think it def better buy than 7900xtx at that point
anyway, sorry little sidetracked, as OP wants 1440p gaming, think 4070ti more than enough and save the £250 diff. Think am5 way to go though, with ability to drop later gen cpu in rig going forward. just be carefull if going budget am5 mobo..some dont have best vrm's and might limit you in future upgrade if going for a more powerful cpu. below good place to start for cheaper boards

edit, forgot to say, electricity costs etc dependent on gaming use etcso could be more or less...just used my son's use as an example.
 
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