• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

AMD Zen 3 (5000 Series), rumored 17% IPC gain.

Status
Not open for further replies.
humbug said:
I'll say this, Intel have finally accepted that people want high core count CPU's on the mainstream platform.

Tho i expect AMD to push that to the next level again with Zen 5 if not Zen 4 because with MCM they can quite easily and with Zen 5... again i expect them to be stacking core dies on top of core dies and a huge slab of cache on top of that and then gluing multiple stacks of that together.

Zen 5 is going to make another frame shift in reality. CPU's are going to start looking like GPU's with Gigabytes of L3 Cache.
Click to expand...

I don't know why but this sounds so erotic.
 
5600/5700X are out on 4th April, some of the other new SKU's as well, been given a price of a shade under £160 for the 5600.
 
Hmm, I wouldn't mind upgrading my 3700x / B350F but I don't think it would be justifiable unless I could fit an upgrade within £250
 
willhub said:
Hmm, I wouldn't mind upgrading my 3700x / B350F but I don't think it would be justifiable unless I could fit an upgrade within £250
Click to expand...

Quiet a few B350 board will be able to take the new CPU's so you could flog the 3700X and buy a 5700X and just drop it in. Make sure you do the BIOS upgrade first. :)
 
Journey said:
ASUS are busy pushing them out at the moment, if you send support an e-mail you might get a better idea of the time line, but they aren't due out until 4th April so still a few weeks yet.
Click to expand...

OOOf might give that a go, I rekon I'd get £100 or so for my 3700x so be a good little upgrade if can avoid changing the mobo!
 
I got a 5600G for my proxmox/NAS machine. Running on my Asrock B450 Pro 4.

About 36% faster in cinebench vs my 2600X, and comparing to others I would say also about 8% faster than a 3600X.
It will be run with CPB/XFR disabled, this chip has a very high non turbo clock compared to other ryzens at 3.9ghz as well.
I have now been able to remove the GT 1030, which saves me about a third on the power consumption (on 24/7), usage down from about 68W to about 45W. During memory test with all cores loaded, it was consuming under 70W for entire system, Intel take note.
This also means I now have two instead of one PCIE slot with its own IOMMU group now for use with SATA cards (both PCIE slots using CPU lanes).
I am using the cooler from my 2600X as its a higher model vs the one that comes with the 5600G.
Its a massive upgrade on the IMC, I previously posted here I had to run 4 dimm configuration in 2667MHZ, now its at the XMP rated speed of 3000MHZ, toying with tweaking the timings but probably wont.

In GSAT memory copy speed went from 24515.56MB/s to 34219.26MB/s, AIDA latency from over 90 to 72. Tweaking I could probably gain 10% on memory bandwidth and about a 3-5 drop on latency. But since this isnt been used for gaming and instead non interactive use, this memory config will be good enough and better than what was on my 2600X.

It is good now higher end AMD CPU's are getting iGPU's but hoping on 7000 Series they all with have an iGPU.

I will quote the notes for my upgrade process.

Well went ahead and did it, has been a bumpy adventure, not for the faint hearted, with it been a new gen.

A note on the bios for the Asrock B450 Pro 4. I was using 1.50 for my 2600X, I upgraded to 1.80 as instructed on Asrock's site (this the best version for zen+, could see much more options to play with). Then to the latest 3.xx (best version for Zen2), then to 4.80 (earliest version that supports 5xxxG chips). On 4.80 I observed nearly all advanced options on my 2600X vanished, the bios was gutted out, the IOMMU grouping was trashed as ACS was removed, I then installed 5.00 the latest public version and Asrock had added back ACS.

So the first issue was when I removed the cooler, the bracket fell back, as the AMD cooler doesnt secure in place without the heatsink attached. I took the back of the case off (old case) and there is no cut out, so had to drag the board out, put something underneath to hold the bracket up and then was able to reinstall cooler on the 5600G. After that reassembled everything.

After powering up, it was a very long post but successful, I checked the bios and observed a fair chunk of advanced options were back, but still many missing, probably half intact, most of the important ones, however no ACS. I think the G chips dont support ACS, its not official anyway but I found someone on reddit who had contacted Asrock who then told him the G chips dont support ACS. AMD need to publicly disclose this.

I contacted Asrock and pretended to have the USB bug, within a day they sent me a new bios with new AGESA version, it was considerably newer, the public 5.00 has 1.2.0.2, this one is 1.2.0.6 and bios version 5.22.

Still no ACS option however inside was two interesting options called PCIE Alternative Routing. the second one was enumeration. With only the first enabled there was no affect, but after enabling both I now have slightly better IOMMU groups then I had on my 2600X, both cpu routed PCIE slots isolated again. The bios is buggy my second hypervisor boot device isnt visible, on 5.00 it was visible but not selectable as a boot device so buggy on that as well, however luckily all storage devices appear in any booted OS.

The next problem was my NAS VM was crashing on bootup, it worked fine using a generic emulated CPU, after diagnosing each individual new CPU instruction on Zen3, I determined that the PKU instruction is the culprit, seems on BSD guests its not compatible. So I am now emulating an Epyc CPU on BSD guests, and added the missing Zen3 instructions excluding PKU.

I also booted bare metal windows did a cinebench, chip is about 36% higher score vs my 2600X.

The last problem is my monitor a 2209WA has no compatible display type with the onboard outputs, so temporarily I had to keep using the GT 1030, but have ordered a HDMI to DVI-D cable which arrived 5 minutes ago, I will put that in tomorrow.

Hope this helps anyone else who had similar ideas to me for upgrade and use case.

Info on PKU here. https://en.wikichip.org/wiki/amd/microarchitectures/zen_3
Click to expand...
 
Last edited:
Random Guy Esq. said:
Hmmm I have a 3700X myself. Would there really be that much of an uptick for gaming and/or video editing?
Click to expand...
For gaming you would need to be running a decent GPU say a 3060ti / 3070 at 1080p to see a noticeable difference, for video editing then you're probably best checking out some benchmarks of a 3700X vs 5800X for the software you use to give you an idea of the improvement.
 
Status
Not open for further replies.
Back
Top Bottom