AMD Ryzen 7 2700X and Ryzen 5 2600X

[Xlucine]

Precision boost overdrive is only 2000 ryzen & 400 motherboard compatible, precision boost 2 will work in any board. PBO is meant to be effectively self-overclocking, with no power limits until the motherboard supply drops in voltage or the cooler can't handle it (and apparently isn't working yet); PB2 is just a more granular PB

[CAT-THE-FIFTH]

AMD has so many acronyms now even I can't keep up with them!

[Phage]

Precision boost overdrive is only 2000 ryzen & 400 motherboard compatible, precision boost 2 will work in any board. PBO is meant to be effectively self-overclocking, with no power limits until the motherboard supply drops in voltage or the cooler can't handle it (and apparently isn't working yet); PB2 is just a more granular PB

Even more confused !
I haven;t heard of PBO before. PB2 will give the uplift in more than 2 cores to defined limits yes ?

[Xlucine]

Yep:

https://hexus.net/tech/news/cpu/1160...ap-specs-leak/

PB2 is the biggest improvement compared to PB1, XFR2 boosts a bit further because more is more better, and PBO goes a smidge further still. However, according to the 4th paragraph of the latest X470 motherboard review on hexus, PBO isn't working yet:

Other improvements include better power regulation that is supposed to come into play when 2nd Gen Ryzen chips are run at higher speeds, especially when overclocked, and a couple of new technologies that are artificially segmented for X470. The first feature is Precision Boost Overdrive, which is to be implemented at a later date, and StoreMi.

https://hexus.net/tech/reviews/mainb...gaming-7-wifi/

Going by the overclocked results, I predict PBO won't make a huge difference to the performance figures when it finally hits but every little helps

[Phage]

Ahhhh - Gotcha.

[Corky34]

Even more confused !
I haven;t heard of PBO before. PB2 will give the uplift in more than 2 cores to defined limits yes ?

Think of PBO as increasing the power limit when overclocking a GPU.

[Cr@ig]

Same old drivel bias towards Intel, always hampering AMD for the sake of sucking on Intel's and here is me thinking their is no more spin left.

[ksdp37]

I think AMD need to move from playing catchup and offering like for like performance to Intel to being more of a leader. It's the only way we'll see some innovation....

I presume you only read the gaming benchmarks?

Stuff like fluid dynamics, code compilation, 3D modelling AMD seem to be winning and sometimes quite solidly.

Yeah, mainly single thread and gaming..

[CAT-THE-FIFTH]

Yeah, mainly single thread and gaming..

Single threaded performance is fine - most of the improvements in gaming seem to be down to things like cache latency.

[watercooled]

It rather depends what the single-threaded benchmarks are. Some games are lightly threaded and a useful benchmark for themselves (though as we've seen time and time again it's a terrible idea to extrapolate from 'CPU-bound' 720p tests as an indication of a future performance i.e. it just doesn't reflect reality), while some benchmarks are weirdly arbitrary and don't reflect the sort of performance you'll get with actual software.

As CAT says, single threaded performance is generally fine outside of a few edge cases and even ahead in some areas. AMD's SMT is somewhat more efficient then Intel's implementation and multithreaded performance in real applications is generally excellent, even core-for-core with more expensive Intel counterparts.

Having said all that, the move you describe isn't exactly a simple choice - you're looking at companies with vastly different R&D budgets and both companies design CPUs years in advance of them being released so there's a lot of forward-planning that must be done, partly based on expectations of what competitors will be doing that far ahead. AMD already lead in some areas since their Ryzen release, having come an awful long way in one generation.

[mtyson]

AMD's Robert Hallock discusses, and illustrates, updates to AMD SenseMI Technology: Precision Boost 2 and Extended Frequency Range 2. See the video embedded below:

[Xlucine]

Ooh, PB2 gives 300-500 MHz higher boost in games

[scaryjim]

Ooh, PB2 gives 300-500 MHz higher boost in games

A lot of games load 2 or 3 cores quite heavily and maybe another 2 or 3 moderately. That was kind of a worst case scenario for PB1 - the CPU wasn't heavily loaded, but since more than 2 cores were loaded the clock speed dropped right down to the base clock. PB2's granularity allows it to account for actual load, not just number of cores in use. Add in XFR2 to take proper advantage of the cooling capacity (remember, XFR1 was hampered by the clock speed dropping off as soon as more than 2 cores were loaded) and you're inevitably going to see huge improvements in moderately threaded workloads - gaming being the prime real world example.

[Stu C]

Would like to see gaming benchmarks at 1440p, since that is what most people buying this platform will be using.

[gupsterg]

Precision boost overdrive is only 2000 ryzen & 400 motherboard compatible, precision boost 2 will work in any board.

PBO available on ASUS CrossHair VI Hero. TBH after testing the 2700X in C6H and C7H finding it hard to decide which motherboard to keep as both are pretty much the same.