That's amazing Sweepr.. Are there boards available yet?
Delidding Intel CPUs is a somewhat dangerous task with meager benefits for most users. Traditionally, the process required pliers, a vise, a blade, a little sweat, and no small measure of skill. It doesn't have to be that way, though. We previoulsy reported on Rockit 88's Haswell and Skylake delidding tool a few months ago, and now YouImagine user Chri has uploaded a 3D-printable design for a Kaby Lake delidding tool.
http://www.phoronix.com/scan.php?page=article&item=intel-pentium-g4600&num=1
G4600 benchmarks on Linux.
I started to buy that, but then they tried to tack on $10 shipping. I guess I will wait...An update on Pentium G4560 US availability. ShopBLT has some chips in stock for $69:
www.shopblt.com/cgi-bin/shop/shop.cgi?action=thispage&thispage=0110030005045_B7R9184P.shtml&order_id=!ORDERID!
Still nothing on Newegg/Amazon.
Wow, 205W? Intel going all in! Have they ever offered a Xeon with a TDP that high before?
Only as custom offering, the 2679v4.Wow, 205W? Intel going all in! Have they ever offered a Xeon with a TDP that high before?
Operating System Linux 3.10.0-327.el7.x86_64 x86_64
Model Supermicro SYS-6029P-TR
Processor Intel Pentium II/III @ 1.80 GHz
2 processors, 56 cores, 112 threads
Processor ID GenuineIntel Family 6 Model 85 Stepping 2
L1 Instruction Cache 32 KB x 28
L1 Data Cache 32 KB x 28
L2 Cache 1024 KB x 28
L3 Cache 39424 KB
Motherboard Supermicro X11DPi
BIOS American Megatrends Inc. 5.12
Memory 63906 MB
Only as custom offering, the 2679v4.
Our R&D dept has tested hundreds of CPUs and found the following frequency ranges are workable for overclocking Kaby Lake i7-7700K CPUs
- 20% of samples are stable with Handbrake/AVX workloads when running at 5GHz CPU core speeds.
- The AVX offset parameter can be used to clock 80% of CPU samples to 5GHz for light workloads, falling back to 4.8GHz for applications that use AVX code.
- The ASUS Thermal Control Tool has now been ported into UEFI and can be used to configure profiles for light and heavy (non-AVX) workloads to extend CPU core overclocking margins on air and water cooling by up to 300MHz.
- Memory frequency: The best CPU samples can achieve speeds of DDR4-4133 with four DIMMs (ROG Maximus IX series of motherboards needed). DDR4-4266 is possible on the Maximus IX Apex. For mainstream use, we recommend opting for a memory kit rated no faster than DDR4-3600, as all CPUs are capable of achieving such speeds.
In order run Prime95 at 5GHz, our CPU sample requires 1.35Vcore. Power consumption under that load comes in at 131 Watts, which is comfortably below 2X the stock power consumption of Prime95. I must confess, CPUs are usually power rated by application power rather than Prime95, so leaving some headroom below the 2X figure is prudent.
So, if you’re running Prime95 as a short-term stress test, we advise using no more than 1.35Vcore with a 7700K CPU. If the CPU has not been de-lidded/re-lidded for a thermal paste upgrade, you’re likely to run out of thermal headroom around that voltage anyway.
...Realbench is far kinder to the silicon from a power consumption point of view. At 5GHz and 1.35 Vcore, the power drawn is only 93 Watts. The risk of degradation is far lower than when subjecting the CPU to the brutality of AVX-enabled versions of Prime95.
...De-lidding the CPU’s IHS (integrated heat spreader), replacing the thermal paste with something more thermally conductive, and then re-lidding, can yield benefits. We’ve seen temperature drops between 13~25 Celsius when the procedure is performed correctly.
If you’re wondering why Intel uses paste that’s less thermally efficient than the exotic mixes available to consumers, consider all the thermal cycling a CPU is subjected to over a few years. Heat can cause thermal pastes to fracture, creep, or pump out over time, leading to hotspots. Intel’s choices are likely based on long-term evaluations and ease of mass-application on the production line. With that in mind, if you do happen to embark on the de-lidding journey, it’s probably wise to re-apply the paste periodically, especially if you’re using the CPU in a vertically installed motherboard.
...Previously, the dual-radiator setup wasn’t stable at 5GHz with anything less than 1.328V. The re-pasting adventure provided temp drops that are substantial enough to reduce required Vcore to 1.28V, which is in line with the previous result with water temps at 18 Celsius. The additional headroom also allows us to push the CPU 100MHz higher with a mere 16mv voltage hike (1.344 Vcore). Prior to de-lidding, the CPU required 1.38Vcore for the same frequency. The gains are real. Just bear in mind that it will void Intel’s warranty. Interestingly, we have heard that some retailers are selling re-pasted CPUs and providing their own warranty (Case King and OCUK). It may be a worthwhile option if fiddly DIY doesn’t sit well with you.
...For the enthusiasts out there, right now, all the latest high-speed memory kits are using the famous Samsung B-die ICs. It’s good stuff. Should temptation get the better of you and you’ve got your sights set on a DDR4-4000+ kit, be sure to provide adequate airflow over the memory modules. Good B-die based modules are sensitive to temperature which can affect their stability. A capable memory cooler pays dividends if you intend to push the memory hard.
I started to buy that, but then they tried to tack on $10 shipping. I guess I will wait...
Thanks, Sweepr! I've been too busy to pay attention, but thanks to you:Another update. Pentium G4560 now available for $62.81 + free shipping @ Amazon US (antonline).
Another update. Pentium G4560 now available for $62.81 + free shipping @ Amazon US (antonline).
Skylake-EP 28C/56T - Geekbench 4 Results (ES)
Single-Core Score
3678
Multi-Core Score
38983
https://browser.primatelabs.com/v4/cpu/1746292
Single-Core Score
3323
Multi-Core Score
37556
https://browser.primatelabs.com/v4/cpu/1746296
- Unclear if Xeon Platinum refers to high-end Xeon E5 and/or Xeon E7
In the UK, the Pentium is priced relatively closer to the Athlon and it's cheaper than the FX 6300. In both cases, it is faster - indeed, up against the Athlon, there's no contest - Intel's budget offering is on another level. However, the era of the many-core game engine is finally paying dividends for AMD's now-ancient FX line. Titles like Rise of the Tomb Raider and The Witcher 3 hold up remarkably well on the six-core FX 6300, though games like Far Cry Primal - which rely heavily upon single-threaded performance - drop off significantly. Also notable is Ashes of the Singularity's CPU benchmark: the Pentium and the i3 are slow compared to an i5 or (especially) an i7, but the FX 6300 stutters noticeably, while the Athlon has multi-secondpauses.
While we don't have full benchmarks to hand, we can also confirm that the Pentium G3258's stuttering issues are even more pronounced than the Athlon's. Regarded as a budget winner by some, the fact is that the lack of hyper-threading combined with hobbled memory bandwidth reduces the G3258's gaming capabilities considerably. Put simply, the new G4560 wipes the floor with it - a combination of hyper-threading and wider memory bandwidth effectively making it an i3 in all but name. It's also interesting to note that the lack of AVX2 instruction support does not appear to be holding back the new Pentium in the slightest - and this is interesting because this functionality is supported in the PS4 and Xbox One Jaguar CPU cores, so we should expect them to be utilised in modern titles.
...For our money, the i5 remains the sweet spot for running modern games at high frame-rates, but what's clear is that there is a marked level of diminishing returns with regards to performance the more money you sink into your set-up. In terms of a straight value comparison between CPU cost and resultant in-game frame-rates, the Pentium is a clear winner.
You can use DDR4-2400 on H110?
BTW, G4560 now on Newegg...