Raptor Lake Leaks + Intel 4 developments

[g67575]

Indeed.

The good news is, Tomshardware expects DDR5 7200 MT/s 'inexpensive 32GB UDIMMs for client PCs' by late 2023. Link here:

Samsung: 1TB DDR5 RAM in 2024, DDR5-7200 in 2025

Samsung plans to introduce 32Gb DDR5 memory chips in early 2023 and 1TB memory modules in 2024.

www.tomshardware.com

With speeds above 7200 MT/s at some point in 2025.

 

[g67575]

I imagine you can crank up the voltage to 1.5-1.6v, as the screenshot shows above. Most people will want something stable that runs reasonably cool, has good endurance and can be run 24/7 doing whatever.

It would be way simpler just to buy lower voltage modules and just set their speed with XMP / EXPO. Latency or whatever isn't going to be an issue, because the total latency will be lower anyway (even if they did raise the CAS latency above 40), and most people buy higher frequency RAM to get more bandwidth. The Samsung chips likely coming in late 2023 are designed to run at 1.1v, which is the original JEDEC spec for DDR5, but at 7200 MT/s. No doubt it will be possible to achieve even higher frequencies than that though.

In the meantime, I think using DDR5 6000 MT/s modules should give good performance, maybe overclocking the frequency a bit and raising voltage if temp allows (it depends also if you are using a LGA1700 or AM5 system).

EDIT - I've been reading that Samsung's new DRAM fabrication process (EUV) allows a reduction in power usage (~20%), so perhaps this explains the lower voltages?
Link:

Samsung's 5-Layer EUV DDR5 in Production, DDR5-7200 ICs Incoming

Samsung's 14nm five-layer EUV fabrication process will enable DDR5-7200 chips.

www.tomshardware.com

 

[g67575]

Your understanding of ram is all over the place.

It's the best place to be.

 

[g67575]

Intel 13th Gen Core "Raptor Lake-S" specifications leaked, 14 SKUs, up to 16-cores and 5.8 GHz - VideoCardz.com

Intel Raptor Lake-S lineup has been leaked All the details on upcoming 13th Gen Core clocks have been confirmed by Wccftech. Where are the times when CPUs only had base and boost clock? With the introduction of hybrid architecture of Performance and Efficient cores, multiple boost technologies...

videocardz.com

It looks like there will be quite a gap in the max single core speed, between the 13900K (max 5.8ghz on 2 cores) down to the 13700K (max 5.4ghz on 2 cores).

 

[g67575]

Price is really coming down on 8GB DDR5 modules (~£34), could be tempting for some to just buy one or two of these and wait for the higher speed Samsung modules (for consumers) to be released... Then sell the low spec DDR5.

 

[g67575]

@Robert896r1 - Cheers for the work put in, clearly a nice boost to minimum FPS (which I think is the metric people will notice during gameplay).

I'm with you up until last optimization. Definitely think E-cores off, HT off can help (in many games), OCing Ring/CPU cache also (probably more than ppl think).

Might be tempted to leave E-cores on generally, though.

I tend to think higher DDR frequency is worth it, depending on the voltage required. Over 1.4v, not sure...

Not sure about the benefits of tweaking RAM timings, it's true that this can give you a few less nanoseconds of latency in some tests, but these are billionths of a second.

It won't hurt to tweak RAM timings, but it's not clear to me why one would put the time in to test it and reach stability.

​

 

[g67575]

There's an easy one you can do, just turn HT off (as above).

 

[g67575]

I think it's best off, just to avoid dips below 60 FPS in some games. It depends how powerful the CPU is ofc.

 

[g67575]

Main gain for 13th gen is ~5ghz (or more) on all cores, for the 13600K and above. Zen 4 does the same thing, but for all models (although 7600X not so cheap at launch...).

The main ppl who will gain will be those who buy mid end CPUs (priced around $300?).

 

[g67575]

The 8 P core 13700f will probably be the most interesting model of the 13th gen (releasing in 2023), due to the (reported) all core speeds of 5.1ghz:

https://www.cpu-rumor.com/wp-content/uploads/2022/09/Intel-13th-Generation-Raptor-Lake-K-and-KF-Series-CPUs.jpeg

It's too bad that the prices on these will probably be around £400 inc VAT, and another hundred for the unlocked variant. Adding another 4 E-cores won't help with the prices.

Total system power probably similar to the 12700, at around 260w:

 

[g67575]

I'm sold, going to keep my DDR4 and swap my 6700K for a 13600ish and be happy for another 6-8 years!

I'd consider a 13700f if you can afford to buy one, if you don't plan an upgrade for many years.

 

[g67575]

Another thing to note is, the 12/13th gen isn't any cheaper for 8 (high power) cores than AMD + Zen 4. Also, Intel isn't rushing to release the cheaper locked models, so I kind hope they get smashed up by AMD this time around and learn from their mistake. Nor will we see cheaper LGA1700 B760 boards until next year, so 2 obvious advantages to an AMD build.

It's hard to recommend LGA1700 for a new PC build, maybe worth it but depends on cost. Sounds like the new boards will be DDR5 only, so I wonder how Intel will encourage people to make the switch to DDR5 (which benefits them in the long run)?

 

[g67575]

It's possible, I might be out of date.

 

[g67575]

No one will be interested in buying a 13900K when Meteor Lake and the generation after that are released.

 

[g67575]

possibly. But usually, the next gen CPU at a lower tier overtakes the current generation, and offers a better price/performance ratio. No reason why this won't happen with 'Intel 4' (meteor lake) and 'Intel 3' based CPUs.

 

[g67575]

You have to post rumours on tech news sites quick, before people work out why the info is obviously incorrect or pointless.

 

[g67575]

So, buy an Intel CPU if you want more cores (and therefore multithreaded performance). It's not really a focus for AMD. I would guess that the max core count will improve on Ryzen CPUs, as the process technology (almost certainly TSMC) improves and matures, and demand for >8 cores gradually increases.

 

[g67575]

So what your saying is buy Intel if you want more performance now or buy AMD if you want to spend more cash for less performance as its not AMDs focus right now but have the ability to spend even more cash on a CPU upgrade in a few years as the current one didn't have enough performance to last.

Or, just keep posting here if you enjoy shilling for Intel.

 

[g67575]

12th gen does 5gig or more.
13th gen should be 5.4-5.5 plus.

Zen 4 will be priced to compete with Intel's locked chips. All core clock on these is 5.3ghz for the 13900, 5.1ghz for the 13700. The locked chips are similar to the all core clocks of the best 12th gen chips.

 

[g67575]

Full specs have been 'leaked' onto the web for the 13th generation and Z790 chipset:

Key Slides from Intel 13th Gen "Raptor Lake" Launch Presentation Leak

The most juicy bits of the Intel 13th Gen Core "Raptor Lake" launch press-deck just leaked, courtesy of Igor's Lab. They reveal the six SKUs Intel will debut the 13th Gen Core desktop processor series with, highlight key differences with the previous-gen "Alder Lake," and also detail what the...

www.techpowerup.com

Not much too say really, no real surprises. Turbo Power consumption for the unlocked i9s (253w) is a bit higher than the 12th gen's 12900K and 12900KS, clocks are a bit higher too. Biggest difference is more E-cores + increase in CPU caches, as was previously known.

Notably, the 13700K and KF total power usage is also 253w, quite a bit higher than the 190w total power consumption of the 12700K and KF. Decent cooling not optional. Looks like high end cooling will be required to overclock.

Same total number of lanes on the Z790 platform, with more PCIE 4 lanes. Lowest DDR5 supported RAM speed is now 5600 MT/s. DDR4 support the same. Max USB 3.2 2x2 ports increased by 1.

No mention of changes to the IMC / memory controller gears.

No mention of the locked versions of these CPUs, or the cheaper B760 chipset motherboards, so these must be coming around Q1 2023.