AMD Ryzen Precision Boost Overdrive & AutoOC Benchmarks & Explanation

This deep-dive explains PBO vs. Precision Boost 2, including benchmarks with test data on differences between stock, PBO, and AutoOC.

In this video, we're exploring Precision Boost Overdrive, Precision Boost 2 / XFR, and AutoOC features on the AMD Ryzen 3000 series CPUs. The first half of the video explains the differences between PB2 and PBO, talks about what Precision Boost Overdrive is supposed to do, what features are technically part of (and not part of) PBO, and how the feature is theoretically supposed to be used. The second half talks benchmark data, differences, and about whether it's "worth it" to overclock via Precision Boost Overdrive. Testing uses the AMD Ryzen 9 3900X and AMD Ryzen 5 3600, with the MSI X570 Godlike and Gigabyte X570 Master boards used as the primary test platforms.

NEW RYZEN CPU LISTINGS:

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Host, Test Lead: Steve Burke
Editorial, Testing: Patrick Lathan
Video: Andrew Coleman, Keegan Gallick

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[GamersNexus]

This was a massive research effort undertaken by Patrick on the team. He did a great job putting it all together!

[KeithYipKW]

Timestamps:
00:15 Snowflake knocked an Intel CPU down
10:47 Snowflake playing with an wire held by Steve

[jasonsummers]

The feeling when a cat gets a R9 3900x before you do

[BigDaddyAddyMS]

Pretty sure I'm even more confused about Ryzen features after watching the video. Lol

[Grimdopple]

Call your doctor if your boost clock speed last longer then 4 hours.

[Zarcondeegrissom]

PBO is dependant on the alignment of the planets, lol.

[OzzyOscy]

AMD: _"We'll do all the overclocking for you so you don't even have to touch anything. We're keeping it simple - just play straight out the box!"_
Overclockers: *_"WE HAVE TO BE SURE."_*

[ScyIIa]

Opens Ryzen Master, clicks on Precision Boost Overdrive tab, clicks on Auto Overclocking, scratches chin, closes Ryzen master. looks for How to use Ryzen Master for Dummies.

[pkpnyt]

Still wondering why Infinity Fabric OCing is not being discussed. If set on manual at 1:1 (1800 IF / 3600 MEM FREQ) there's an apparent jump in performance compared to OCing with PBO/Auto OC. I hope to see you guys tackle this!

[TeodorAngelov]

He talks so systematically and concisely and my brain still overflows. I have to watch this like 10 times.

[fcfdroid]

Actively messing with this rn now and I understand everything your saying but could you please do a new video for Ryzen 5000? I have a 5800x and found the best performance with PBO enabled +XMP.

[rhekman]

Now I'm really curious what ACTUALLY limits Ryzen 3000 from running an all-core overclock to the rated single core boost clock high end overclock situations? Obviously all the transistors are capable of running at 4.5, 4.6 GHz for at least short periods. But have we got to a point with 7nm that leakage current just runs away? Is the node so small that micro-heating of small parts of the chip exceed silicon's thermal conductivity to the point that only time (milliseconds of boost and then clock dithering) or extreme cooling (LN2) can allow the switching frequency to maintain top clocks? I'm not knocking AMD for having a product that clocks in a different manner than what enthusiasts are used to. We can be a stubborn bunch.



I'm not a physicist or an electro-chemist, but my theories above about "micro" thermals are based on the huge jumps in power consumption on LN2 with Ryzen 3000. Tech reviewers and semiconductor analysts probably need to start looking at Watts/sq mm more closely when looking at products like Zen 2 and Navi to get an understanding of how manufacturers are handling clocks and power and thermal management.

[errolneal]

The cat: I'm smelling some marketing BS on this processor lol!

[myopicthunder]

Hmm yes, yes... I have learned nothing about how to activate this.

[shadykillas]

If you really care about getting that extra gaming performance 3600mhz memory with good low and tight timings will get you far more FPS than getting a few more hundred MHz out of your ryzen 3000 cpu.

[Chilionloppu]

So in a nutshell.
1. Get a good cooler
2. Make sure VRMs don't explode (on 3900X)

[vossli]

Ryzenmaster feels like bloatware...but it actually works.

[Zesserie]

TDC: top dead center, good knowledge for when you need to retime your engine when tuning it, as to much advanced timing is key to cause of detonation, not good.

[Amsztel]

Amazing video. So long story short - PBO disabled and buy an awesome cooler for your Ryzen 3rd gen.

[heimvar]

Never forget the alignment of the planets in your overclocking