AM4 workstation to AM5 gaming upgrade...
46 minutes ago, BahnStormer said:any reason for the memory recommendation? I'm not sure why I'd downgrade the RAM to CAS32 on a lesser-known brand? It's only a £10 saving and certainly based on my DDR4 experience, GSkill have tended to have very high spec memory modules and normally very well supported for running at the advertised spec (or better most of the time).
CL30 and CL32 perform identically, since it's CL30-40-40 and CL32-38-38. You're trading 2 ticks of tCL for 2 ticks of tRCD, and that practically results in no net performance change. As for the lesser brand, it doesn't matter with DDR5 anywhere near as much as it did with DDR4, since even the OEM PCBs overclock memory quite well (for quite a while, and maybe even still now, there were some OC records taken with green PCB sticks). They all use the same Hynix based memory ICs, and those are very consistent so it's not like you could argue that G.Skill's binning is better for overclocking (the best to the worst chips are ~2 ticks on any given primary timing at any given voltage).
As far as I'm concerned, you're getting the exact same product for £10 less.
52 minutes ago, BahnStormer said:it would probably be FINE for a 7800X3D, but it has fairly weak VRM design (semi-reasonable number of VRMs, but poor quality components)
And this matters why? It can handle a 7950X without overheating, that's all that matters. When you're drawing 1/3 the power, they actually run more efficient than the higher end boards because they're closer to the peak in their efficiency curve.
Plus you have a Liquid Freezer with its VRM fan, so the VRM temps matter even less.
VRM temps only matter when they are dangerous. VRMs are designed to run near full load for years with no problem as long as they're below TJMAX, so as long as they stay below that threshold so the motherboard doesn't need to throttle performance to keep the board from exploding, they're don't matter.
12 minutes ago, BahnStormer said:but slight overkill means that they run WELL within their limits and they'll run 20-30C cooler.
No it doesn't. The further you get away from the max load, the closer these boards all get. In games, the difference from one board to the next will be less than 10C from one to the next, which is practically nothing.
57 minutes ago, BahnStormer said:but no mention of the AX V2 variant and Gigabyte DOWNgraded the VRM spec when they released the "V2"....
I've used that board, it's fine. The VRM doesn't get hot when used with a 7800X3D, as in the heatsink barely feels warm when running stress tests.
I don't know where you're seeing that it was downgraded anyway, both use 8 60A power stages for the main VCore power rail, and the VDD_MISC rail on the V2 is a two phase rather than a single phase (this doesn't matter though, VDD_MISC only draws a few watts at most).

Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now