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Thread: 7900XT with a 5700X

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    Yer Da Sells Avon! keef247's Avatar
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    7900XT with a 5700X

    Sooo, from what I've red on people that actually own both/have tested cpu upgrades afterwards, there doesn't seem to be a bottleneck using a 5700x with a 7900XT...

    As my cats got multiple tumours and cancer and his time with us is short I figure I'm gonna go all out with this build now fack it, what's another £240 ontop of the 6800XT I was gonna buy eh!

    I figure given my usage 1080p @60fps locked for SP games with an undervolt on everything (low power consumption themed bang per buck build plus anything above 60fps for SP is pointless imho) and capped at 144 1:1 with my monitor for MP, that this should last be a fair few years at ultra then high then medium 1080p mixed settings

    Does anyone on here run this combo? I see many people with a 5700x/5800/5800x3d backing up what I've already red, they even said a 5600X probably wouldn't bottleneck it enough to notice, so a 5700X appears to be the sweet spot considering I got one brand new for silly cheap and have everything else ready to go come next month when I buy this.

    I find it hard to say no considering the 7900XT is even slightly less TDP/smaller than the 6800XT as well! (not that my case wouldn't fit a 6800XT)

    I'd rather spend the money now than in a year or 2 think damn for £240 more I could have something better which isn't going to buy me a new card in 2-3 years? Does that make sense?

    This is mainly for the extra vram future proofing with things like TCP/TLOU/UE5/Witcher 4/1 Remake etc etc and the ability to run either high/ultra for many years at 1080p with 0 compromise.
    Last edited by keef247; 14-05-2023 at 01:26 PM.
    Quote Originally Posted by Fraz regarding the Apple Mighty Mouse
    I just got so fed up with this thing for it's crappy erratically working scroll ball and poor right-click detection that I just threw it against a wall and it exploded.

    Good riddance. Wish I'd done it about a year ago.

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    Senior Member cptwhite_uk's Avatar
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    Re: 7900XT with a 5700X

    The RX 7900 XT is ony netting about an extra 10% performance over the 6800XT, looking at techpowerup. Not sure the extra £240 is worth it personally. If I were buying new now, I'd reluctantly be eyeing up a RTX 4070, yes I know it's only 12Gb vRAM, but realistically this is going to be okay for at least 3 years I reckon, at least for 1080/1440p. They also sup power (comparitively to the 6800XT @ 240-270W and 7800XT @ 300-350W), typically consuming 160-190W, title dependant.

    The RTX 4070 splits the difference performance wise between the 6800 XT and 7900 XT

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    Yer Da Sells Avon! keef247's Avatar
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    Re: 7900XT with a 5700X

    Quote Originally Posted by cptwhite_uk View Post
    The RX 7900 XT is ony netting about an extra 10% performance over the 6800XT, looking at techpowerup. Not sure the extra £240 is worth it personally. If I were buying new now, I'd reluctantly be eyeing up a RTX 4070, yes I know it's only 12Gb vRAM, but realistically this is going to be okay for at least 3 years I reckon, at least for 1080/1440p. They also sup power (comparitively to the 6800XT @ 240-270W and 7800XT @ 300-350W), typically consuming 160-190W, title dependant.

    The RTX 4070 splits the difference performance wise between the 6800 XT and 7900 XT
    Nah not up for the 4070, it's fine as a stop gap if it was £350. but not for more than I can get a 6800xt for. I don't care for fake ai frames/dlss either nor the idea of buying all new then having to lower my settings.

    From what I've seen the 7900XT seems to do around 30 fps or more in a lot of games at very demanding settings, so games running at 60-70fps with everything cranked are getting 90-100+ so I'd say that's a fair bit better than 10%. I've just watched many vids with multiple cards side by side comparison wise and watched the output displays, I don't trust the shill'ed sponsored reviewers personally.

    I like the idea that this extra £240 gets me easily 3 maybe 4 years at high/ultra 1080p 60fps all day or more if I want it - but I'll frame cap it as don't see the point in SP games of more than 60fps and I'm undervolting the gpu/cpu so it won't be eating sod all power draw wise, the sapphire i'm looking at is obviously a preferred brand vs the asrock/powercolor 6800xt's I was reluctantly going to buy...

    So that's another big factor mate...
    The vram really sells it for me and how well the newer cards do ray tracing should I fancy a bit of that as a bonus.

    I've got people recently to do me a run on cyberpunk/tlou at 1080p ultra framecapped to 60fps and the draw on a 6800xt was 117/127w and the sapphire 7800xt is only 308w and the 6800xt i was looking at was 320-330w iirc? So can't loose when I undervolt it and my cpu
    Quote Originally Posted by Fraz regarding the Apple Mighty Mouse
    I just got so fed up with this thing for it's crappy erratically working scroll ball and poor right-click detection that I just threw it against a wall and it exploded.

    Good riddance. Wish I'd done it about a year ago.

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    Yer Da Sells Avon! keef247's Avatar
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    Re: 7900XT with a 5700X

    FWIW I was very close to getting this 1440p 170hz 32" last year so might have to now haha. As at worst in years to come I could just use FSR if im really bothered when it can't do ultra... HMM...
    Quote Originally Posted by Fraz regarding the Apple Mighty Mouse
    I just got so fed up with this thing for it's crappy erratically working scroll ball and poor right-click detection that I just threw it against a wall and it exploded.

    Good riddance. Wish I'd done it about a year ago.

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    Re: 7900XT with a 5700X

    Don't have either of those cards, but...

    For longevity extra vram is nice, but also the drivers for a 7xxx card will be updated for longer than a 6xxx card. Not usually a deal-breaker, it's not like a card stops working when the drivers for it tip into the "old hardware" download list, but the support isn't the same and that's enough to tip me towards the latest generation if I can.

    (In case you are wondering, my cast off GPUs tend to end up in other machines in the family rather than getting sold on. My mum only just stopped using my 8800GT 512MB )

    Only thing against AMD GPUs has been the VR support. But I love the Linux support, so am wondering if this machine is due an upgrade before long. The Vega 56 is getting a bit long in the tooth now.

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    Yer Da Sells Avon! keef247's Avatar
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    Re: 7900XT with a 5700X

    Quote Originally Posted by DanceswithUnix View Post
    Don't have either of those cards, but...

    For longevity extra vram is nice, but also the drivers for a 7xxx card will be updated for longer than a 6xxx card. Not usually a deal-breaker, it's not like a card stops working when the drivers for it tip into the "old hardware" download list, but the support isn't the same and that's enough to tip me towards the latest generation if I can.

    (In case you are wondering, my cast off GPUs tend to end up in other machines in the family rather than getting sold on. My mum only just stopped using my 8800GT 512MB )

    Only thing against AMD GPUs has been the VR support. But I love the Linux support, so am wondering if this machine is due an upgrade before long. The Vega 56 is getting a bit long in the tooth now.
    I keep seeing conflicting info to wether my 5700x will bottleneck the 7900xt or not... I could happily go for a 1440p monitor as well and play games at that res as there's a 32" I wanted last year anyway so makes it an easy excuse to upgrade my moni as well... Hmmm.

    Nah screw it, like someone else said elsewhere "Just get the 7900xt. So called "bottle neck" will only mean you'll lose 1-3% FPS. When you're getting 50% extra performance, you're not going to notice. some point in the future grab yourself a cheap 5800x3d anyway"
    Last edited by keef247; 14-05-2023 at 07:48 PM.
    Quote Originally Posted by Fraz regarding the Apple Mighty Mouse
    I just got so fed up with this thing for it's crappy erratically working scroll ball and poor right-click detection that I just threw it against a wall and it exploded.

    Good riddance. Wish I'd done it about a year ago.

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    Re: 7900XT with a 5700X

    I can't see a 5700x causing any kind of bottleneck on the GPU, of course if a game is heavily leaning on the CPU you may hit a limit faster than a faster CPU but in most cases you hit a GPU limit before CPU limit.

    The 7900xt vs 6800xt, is it worth £240 more, probably not, if it worth for a slot in and forget for a good few years choice, I suppose so.

    Likewise you have the choice to upgrade to a 5800x/5800x3D/5900x/5950x in the future if cheap or needed.

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    Re: 7900XT with a 5700X

    Quote Originally Posted by keef247 View Post
    I keep seeing conflicting info to wether my 5700x will bottleneck the 7900xt or not... I could happily go for a 1440p monitor as well and play games at that res as there's a 32" I wanted last year anyway so makes it an easy excuse to upgrade my moni as well... Hmmm.

    Nah screw it, like someone else said elsewhere "Just get the 7900xt. So called "bottle neck" will only mean you'll lose 1-3% FPS. When you're getting 50% extra performance, you're not going to notice. some point in the future grab yourself a cheap 5800x3d anyway"
    Bottleneck gets bandied about far too much. A 5700X isn't slow, so it doesn't sound like an out of balance machine to me.

    You might find this interesting: https://www.youtube.com/watch?v=WRXZoDhk9Rw

    TLDR: Upgrading Nvidia GPUs on an AMD system doesn't have as much impact as it does on Intel machines. But if upgrading from a 3080ti to a 7900XTX, that flies on a 7700X cpu. It looks like Nvidia are optimising their drivers for Intel machines, or the ReBar support works better on AMD cpu+gpu and that more than makes up the difference.

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    Yer Da Sells Avon! keef247's Avatar
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    Re: 7900XT with a 5700X

    Quote Originally Posted by Percy1983 View Post
    I can't see a 5700x causing any kind of bottleneck on the GPU, of course if a game is heavily leaning on the CPU you may hit a limit faster than a faster CPU but in most cases you hit a GPU limit before CPU limit.

    The 7900xt vs 6800xt, is it worth £240 more, probably not, if it worth for a slot in and forget for a good few years choice, I suppose so.

    Likewise you have the choice to upgrade to a 5800x/5800x3D/5900x/5950x in the future if cheap or needed.
    This is exactly why in my situation it is, fit and forget, it's 50% faster than the 6800XT I was goign to get, so £240 extra now goes a long way for future proofing, and I'll just get a X3D cpu 2nd hand cheap in the future when the time comes

    Quote Originally Posted by DanceswithUnix View Post
    Bottleneck gets bandied about far too much. A 5700X isn't slow, so it doesn't sound like an out of balance machine to me.

    You might find this interesting: https://www.youtube.com/watch?v=WRXZoDhk9Rw

    TLDR: Upgrading Nvidia GPUs on an AMD system doesn't have as much impact as it does on Intel machines. But if upgrading from a 3080ti to a 7900XTX, that flies on a 7700X cpu. It looks like Nvidia are optimising their drivers for Intel machines, or the ReBar support works better on AMD cpu+gpu and that more than makes up the difference.
    Yeah that's what I thought mate, and if there was any it'd be hardly noticeable when you're getting a 50% performance increase over the 6800xt anyway haha!

    Wow, the sneaky swines! That doesn't surprise me that there's stuff like that going on with those two brands!
    Quote Originally Posted by Fraz regarding the Apple Mighty Mouse
    I just got so fed up with this thing for it's crappy erratically working scroll ball and poor right-click detection that I just threw it against a wall and it exploded.

    Good riddance. Wish I'd done it about a year ago.

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    Re: 7900XT with a 5700X

    Quote Originally Posted by keef247 View Post
    That doesn't surprise me that there's stuff like that going on with those two brands!
    TBH I don't think that would be an anti AMD thing, so much as if most reviewers have Intel based machines then they will want every last drop of performance for the benchmark graphs on those machines.

    Nvidia hate Intel, but won't let that get in the way of maximising their profits

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