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[Jizz_Beard_thePirate]

Pemalite said:

Captain_Yuri said:

Well all 300 series motherboards should now be compatible with 5000 series so if he has a 300 series and he is comfortable enough updating the BIOS, it should be compatible. But arguably, even X570 motherboards should get pretty big discounts.

So in theory, lets say he has to upgrade his mobo as well:

$200 5800X3D + $120 for X570 vs $300 for 7700X + $300 for X670 + $200 for DDR5

So the difference will be $320 vs $800. And a lot of the X670 boards that are launching are coming out with Gen 4 PCI-E for GPU and not the Gen 5 because according to AMD, it's optional for X670. So most if not all of the launch motherboard manufacturers are leaving PCI-E Gen 5 for the more expensive X670E platform.

And while AM5 will be supported for longer if you want to upgrade the CPU, the difference in price seems silly if the performance upgrade is as minor as AMD themselves are claiming. Because you can save that and buy a 4080 and see 3-3.5x the performance increase compared to a 2080 vs 2-2.3x if you get a 4070. And of course, if later down the line, he does want to upgrade to AM5 platform, the mobo and ram will be much cheaper.

Considering his DDR4 memory is likely sub-3600mhz and potentially not dual-ranked, I wouldn't considering getting a new x570 board. Older systems are just about doing a single upgrade to get a performance boost, once we start replacing more than one component, it's better to do a whole platform change.

Because if his board isn't compatible with the 5000 series, it should be compatible with something like the Ryzen 3950X which will double performance in mult-threaded scenarios and upowards or 20-30% in single threaded... And they can be had fairly cheap these days.

It's all about weighing up options, obviously he isn't afraid to keep his system for several years if it's still doing a good job.

Well one of the great characteristics of 5800X3D and Vcache is the need for fast ram as it makes very little difference because the CPU doesn't need to go to RAM as often.

Techspot did a good review on this by comparing DDR4-3800 Mhz vs DDR4-3200 Mhz:

https://www.techspot.com/review/2449-amd-ryzen-5800x3D/

So unless he has really bad ram, I don't think it will matter too much. Personally I don't agree with the statement "once we start replacing more than one component, it's better to do a whole platform change" because it depends on the situation. Spending $320 on a CPU + Mobo upgrade is a lot less than spending $800 on a CPU + Mobo + Ram upgrade when it's very likely the $800 system upgrade will offer at best 10-15% more performance than $320 upgrade. And if we take AMDs own word for it with the current information we have, it will either tie or Zen 4 will be 5-10% ahead of 5800X3D. That's a lot of money to throw away instead of upgrading to a higher tier 4000 series GPU which he indicated that he wanted to do.

I also don't fully agree with going with Ryzen 3950X but I get where you are coming from. DF showed us that between a 3600 and a 12900K in the spiderman RT game, the 3600 ran at 70 fps whole 12900K ran at 130fps. That's a huge gap and a 5800X3D is pretty close to a 12900K in terms of gaming performance. And a 3600 can't keep it above 60fps when you really max it out. And don't forget that 3950X is more sensitive to RAM speeds than 5800X3D. I agree it's about weighing options but imo, Ryzen 3000 and below shouldn't be a consideration because how quickly prices come down on CPUs.

Last edited by Jizz_Beard_thePirate - on 13 August 2022