CPU Pro Reviews Workstations

Core i9-12900KF, Core i7-12700K and Core i5-12600 in a workstation test with amazing results and an old weakness | Part 2

So today I’ll get serious and show you where Alder Lake S can really score aside from colorful gaming pixels. Gaming what? Completely overrated if you look at at least some of today’s results. Because the true strengths of the new architecture will hardly be seen while playing games, because today it’s getting faster in a different way.  Of course, even Alder Lake S won’t outright kill the current competitor CPUs, but it will almost do so in some areas. At least whenever lighter or mixed workloads dominate the workday. And there are a lot of them.

For today’s test, I’m using the same platforms as yesterday’s gaming, also with the same settings. This also makes it easier to compare where your preferences are better: gaming or working. Or maybe even both, who knows? In follow ups I will of course go into more detail on cooling and Xaver on OC and RAM. But today the productivity will be tested first.

I admit that the title of the article sounds a bit lurid if you look at it superficially, but if you look at the results of the first three major test suites in particular, where I rely exclusively on licensed full programs from industry and engineering, then you will understand that one could have been even more explicit. However, the other benchmarks are also impressive, because I also calculated the required watt hours for the completion of demanding tasks at the end.

However, the signs from the gaming tests have already indicated that a completely new impression of Intel’s computing and working slaves could manifest itself here  in productive use, too. I’m sure you can understand my euphoria if, like me, you depend on a truly unrestrained workflow and can’t pay for the electricity out of petty cash. Efficiency and dominance, it’s hard to ignore, even as an outsider.

In gaming, it’s usually the graphics card that slows things down, in productive use and especially in design and construction, it’s almost always the CPU. I’m using an NVIDIA RTX A6000 for testing, which also wants a snappy underbelly when outputting real-time 3D views, regardless of whether OpenGL or DirectX is being used. Many a CAD program is even worse than the nastiest 720p gaming test in this regard, cue AutoCAD. But I’ll get to that in a minute. Solidworks and Inventor Pro are also demanding, but they contain very different workloads, from light to extremely heavy, which can also occur at the same time. This is where Alder Lake S should be able to show its strengths, which will have to be proven.

And also in this test I have to preface that the current Ryzen CPUs are not degraded to silicon waste with today and you also don’t have to have a reason to panic to suddenly not be able to work with them from one day to the next. But this, admittedly partial demonstration of Intel’s superiority in some areas is actually almost a kind of humiliation. And of course, since I’m always fair, I’ve made an effort to look for any weaknesses for Intel and advantages for AMD. So let’s be surprised, we have both today.

Benchmarks, Test system and evaluation software

The measurement of the detailed power consumption and other, more profound things is done here in the special laboratory (where at the end in the air-conditioned room also the thermographic infrared recordings are made with a high-resolution industrial camera) on two tracks by means of high-resolution oscillograph technology (follow-ups!) and the self-created, MCU-based measurement setup for motherboards and graphics cards (pictures below).

The audio measurements are done outside in my Chamber (room within a room). But all in good time, because today it’s all about gaming (for now).

I have also summarized the individual components of the test system in a table:

Test System and Equipment
Hardware:

Intel LGA 1700
Core i9-12900KF (PL1 125W, 241W), Core i7-12700K (PL1 241W), Core i5-12600K (PL1 150W)
MSI MEG Z690 Unify
2x 16 GB Corsair Dominator DDR5 5200 @ 5200 Gear 2

Intel LGA 1200
Core i9-11900K, Core i7-11700K, Core i5-11600K
MSI MEG Z590 Unify
2x 16 GB Corsair DDR4 4000 Vengeance RGB Pro @ 3733 Gear 1

AMD AM4
Ryzen 9 5950X, Ryzen 9 5900X, Ryzen 7 5800X, Ryzen 5 5600X
MSI MEG X570 Godlike, PBO auto
2x 16 GB Corsair DDR4 4000 Vengeance RGB Pro @ 3800 1:1

NVIDIA RTX A6000

1x 2 TB MSI Spatium M480
1x 2 TB Corsair MP660 Pro XT
Be Quiet! Dark Power Pro 12 1200 Watt

Cooling:
Aqua Computer Cuplex Kryos Next, Custom LGA 1200/1700 Backplate (hand-made)
Custom Loop Water Cooling / Chiller
Alphacool Subzero
Case:
Raijintek Paean
Monitor: LG OLED55 G19LA
Power Consumption:
Oscilloscope-based system:
Non-contact direct current measurement on PCIe slot (riser card)
Non-contact direct current measurement at the external PCIe power supply
Direct voltage measurement at the respective connectors and at the power supply unit
2x Rohde & Schwarz HMO 3054, 500 MHz multichannel oscilloscope with memory function
4x Rohde & Schwarz HZO50, current clamp adapter (1 mA to 30 A, 100 KHz, DC)
4x Rohde & Schwarz HZ355, probe (10:1, 500 MHz)
1x Rohde & Schwarz HMC 8012, HiRes digital multimeter with memory function

MCU-based shunt measuring (own build, Powenetics software)
Up to 10 channels (max. 100 values per second)
Special riser card with shunts for the PCIe x16 Slot (PEG)
NVIDIA PCAT and FrameView 1.1

Thermal Imager:
1x Optris PI640 + 2x Xi400 Thermal Imagers
Pix Connect Software
Type K Class 1 thermal sensors (up to 4 channels)
Acoustics:
NTI Audio M2211 (with calibration file)
Steinberg UR12 (with phantom power for the microphones)
Creative X7, Smaart v.7
Own anechoic chamber, 3.5 x 1.8 x 2.2 m (LxTxH)
Axial measurements, perpendicular to the centre of the sound source(s), measuring distance 50 cm
Noise emission in dBA (slow) as RTA measurement
Frequency spectrum as graphic
OS: Windows 11 Pro (all updates/patches, current certified or press VGA drivers)

 

Kommentar

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Z
Zazz

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15 Kommentare 3 Likes

Hi, you guys at IgorsLab are a lifesaver. A big thanks to you for this article. It would also be of highly interest to see if DDR4 vs DDR5 has any impact on the i9-12900 performance as well. Asking as many people, like me, have invested in 64-128GB DDR4 memory kits and it would be really interesting to see if one would still be able to use them with the i9-12900 without any performance penalty, in my case SolidWorks, or if it is worth investing in a new set of the much pricier DDR5.

A big thanks again,
Peter

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Igor Wallossek

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10,279 Kommentare 19,023 Likes

So let's wait for a 2nd run :)

But I need a short rest.

Antwort 1 Like

Z
Zazz

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15 Kommentare 3 Likes

Great, Have your well earned rest :sleep:

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Z
Zazz

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15 Kommentare 3 Likes

Hi again, Any updates? Eager to see if DDR4 vs DDR5 has any impact on SolidWorks rebuild time as it is such pain in the ass :cool:

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Z
Zazz

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15 Kommentare 3 Likes

Going for DDR4 motherboard and the 12900K today as DDR5 memories aren't that easy to get around here, and must be imported, and i need the build now for my work. It will do till Raptor Lake enters the scene q3 next year and DDR5 and m.2 PCIe 5.0 are more matured.

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Z
Zazz

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15 Kommentare 3 Likes

Strange indeed. 12900K on a Gigabyte Z690i Aorus Ultra DDR4, all settings by default except for XMP.
My setup scores only 1.90 points in CPU Rebuild Composite compare to your 2.89. Huge difference indeed. So DDR5 seems yo speeds up rebuild time in SolidWorks dramatically. I tested to down clock my DDR4 to 2133Mhz only and rebuild time score surprisingly INCREASED to 2.04 points :-O
Other benchmarks are in line with other testers online...

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Danke für die Spende



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About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

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