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New build advice

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4 Aug 2015
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46
Im about to replace my broken 5th gen Intel system, that had an unexpected mug of coffee. Ive managed to recover a few of the components like the GTX908ti, a 750w gold rated ATX Power supply (SuperFlower I think) and 8 sticks of 4GB DDR4 2133Mhz Corsair LPX memory and the several SSD’s I had installed. All have been checked and seem to be still working still, although have a nice smell of coffee…

i was planning on building a ITX system using a AMD cpu and gpu, I quite like the idea of a small footprint system. Planned use is mainly for MSFS2020 plus some non AAA games like assassin's creed, elite dangerous etc. Anyway was looking at something like a Ryzen 9 5900X and a RTX 6800 / 6800XT.

I could reduce some of the cost by rescuing the PSU but then I'm going down the route of a ATX build. Also i think MSFS may benefit from 32GB ram, although i may have got this wrong.

So the reason for this post is that now there is the Ryzen 7 5800X3D, so should i go for this processor instead. The 100mb of L3 cache seems to have some big benefits in MSFS but seems to be less beneficial in normal productivity use. Watched a good video by PremiumBuilds on youtube and his testing seems to suggest a big benefit in having more L3 cache for MSFS2020.

So advice I’m looking for is if starting from scratch should i go with the new CPU or go with the Ryzen 9 5900X. I know AM5 is around the corner but not sure i would want to jump on the new architecture straight away. I know if i go down the AM4 route swapping to AM5 is a new motherboard and cpu etc.

Also on the question of motherboards what chipset is advisable for either of these cpu’s? Im not into overclocking so dont new anything that gives me the availability to overclock.

i dont know much about AMD hardware so some advice would be much appreciated.
 
I pretty confident I am safe with the PSU as it was under a shroud and there was no signs of coffee leakage visible. Its a white PSU so would have shown up pretty easily and the vent on the PSU was facind downwards. The RAM sticks were a bit more exposed as was the GTX980ti, both these had staining on them, it did clean down with alcohol but these would be the bits I would be wary of. All the parts were tested by a local computer store over a 5 day period and they seem to be confident from their tests that these components are OK, but obviosly they cant guarantee failure in the future.

To be honest Im not worried if I have to replace all the components. I know the GPU is a bit lacking for MSFS2020 anyway. I suppose what Im trying to get advice on is if Im going to build an entirely new system would the 5800X3D be a good bet or would 5900X be a safer bet. The PC is mainly gaming, the only other uses are Web browsing, Word/Excel/Email so not really much productivity work. Im dont stream or do social media or do any video encoding. Even gaming is limited to MSFS2020, Elite Dangerous and I have a buch of Assasins Creed games.
 
To be honest Im not worried if I have to replace all the components. I know the GPU is a bit lacking for MSFS2020 anyway. I suppose what Im trying to get advice on is if Im going to build an entirely new system would the 5800X3D be a good bet or would 5900X be a safer bet. The PC is mainly gaming, the only other uses are Web browsing, Word/Excel/Email so not really much productivity work. Im dont stream or do social media or do any video encoding. Even gaming is limited to MSFS2020, Elite Dangerous and I have a buch of Assasins Creed games.

For your use case (assuming you don't think it will change much in the future): then get the 5800X3D. You could also look at the 12700 as an alternative.
 
AM5 I am hearing is going to be DDR5 only. Could be quite pricey with your current ram requirements. Just a thought.

Motherboard wise though your going to be limited by whatever ITX is available.

I'd go 5800x 3d personally.
 
I run a 5900x now but only because it was an easy drop in upgrade on my 3700x. Were I to be buying a complete system now, I'd be looking towards Intel as it appears they'll give us one upgrade on the current socket. And that upgrade might smoke the 5800x3D, although my feeling is that it probably won't :D
 
I run a 5900x now but only because it was an easy drop in upgrade on my 3700x. Were I to be buying a complete system now, I'd be looking towards Intel as it appears they'll give us one upgrade on the current socket. And that upgrade might smoke the 5800x3D, although my feeling is that it probably won't :D
if you mean it would smoke it by using 300+w to get there and set on fire i agree!
 
If your playing msfs then it's got to be the 5800x 3d. The 5900x is a brilliant chip ( just bought one to replace a 3700x) but 12 cores is massive overkill unless you are doing some serious multi tasking or rendering etc.
 
:cry:

True, it'd be a hot boy alright knowing Intel nowadays!

@welshrat I've just done the same, very pleased with the results. I get the feeling that the extra cache really helps, and that it's shared between 12 and not 16 cores makes it an ace chip.
Yes feels a great purchase. Suits me as I can have a lot of stuff going on at once when working but doubles up as a cracking gaming CPU that will hopefully last until I want to jump on zen 4 in a few years. Can't help but feel a little jelly of the 3d cache though :)
 
Yes feels a great purchase. Suits me as I can have a lot of stuff going on at once when working but doubles up as a cracking gaming CPU that will hopefully last until I want to jump on zen 4 in a few years. Can't help but feel a little jelly of the 3d cache though :)
Yeah I've just gone from 3700x to 5950x myself and loving it, do a few youtube vids occasionally and the export time has sped up massively! Not as much of an improvement in games obviously (and I think my 1070 is the bottleneck there still!), but can't see me upgrading platform for 2-3 years at least.

Thanks for everyone's input.
If going the Ryzen route I'd also try to upgrade to some faster RAM if the cost isn't too much to bare, 3200-3600MHz is the sweet spot and I think 2133MHz would really hold the CPU back
 
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