Intel Shows Off 28 Core, 56 Thread Core-X HEDT Processor For Enthusiasts, In Market Q4 ’18

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moonbogg

Lifer
Jan 8, 2011
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Honestly no one is going to run that 28 core Intel chip at 5ghz. That's ridiculous. It is ridiculous, right?
 

ericlp

Diamond Member
Dec 24, 2000
6,137
225
106
depends on how deep your pockets are. I jumped into a TR 1950 because it was "relatively" affordable. I got it when amazon had it for 799 tho. If the chip was 2K ... No way! (yeah that rhymed).

I think anything over 800~1K is doable for people with a few buck burning a hole in their pocket, but anything more than that? Even a die hard geek that is relatively well off will start to question it. You start charging 2/3K for a CPU... Suddenly your high end PC is pushing that 5K mark.

I also bought an AMD TR for a statement for having the balls to bring it to reality. If it wasn't for AMD, we would still be looking at a boring 4 core part. Intel keeps missing the boat and golden opportunities. They should have built 16/32 cores long ago for the masses. Just like when they wanted to build cell phone chips, too late... Now they have hobbled together a server chip, rushing it out the door to try to save face. Will be interesting to see how they market it in the 4'th quarter, hopefully they have a motherboard and chipset already in the works for third party manufacturers to start producing.

**don't wanna come off as an AMD fan... I like Intel, this is the FIRST time I've wanted to buy AMD. I also like AMD APU's as well.
 

Zucker2k

Golden Member
Feb 15, 2006
1,810
1,159
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You don't need to use stress-test apps to justify high power draw while utilizing AVX on these CPUs. Just run a couple of simultaneous x265 transcodes and you'll get similar power draw as any other stress-testing application. Far more realistic use-case and will quickly identify stable overclocks within a few minutes instead of hours.

There is a reason why they used Cinebench and exotic cooling. (Probably) Hiring a pro overclocker behind the scenes to keep tabs while the benchmark is running does not make this a feat of engineering.
I don't think you understand what I'm saying. Intel chips are very efficient if you run them at stock speeds. It is when enthusiasts start pushing the limits on overclocking and then stress-testing with AVX P95, all in the name of stability that the efficiency goes out the window. Even so, that power consumption during AVX stress testing is only half the story. The other half is how much AVX code the cpu is crunching but you will never hear that. As for it not being "a feat of engineering," show me any other arch/chip that has managed to push 28 cores at 5GHz on chilled water. I'm waiting.
 

tamz_msc

Diamond Member
Jan 5, 2017
3,865
3,730
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I don't think you understand what I'm saying. Intel chips are very efficient if you run them at stock speeds. It is when enthusiasts start pushing the limits on overclocking and then stress-testing with AVX P95, all in the name of stability that the efficiency goes out the window. Even so, that power consumption during AVX stress testing is only half the story. The other half is how much AVX code the cpu is crunching but you will never hear that. As for it not being "a feat of engineering," show me any other arch/chip that has managed to push 28 cores at 5GHz on chilled water. I'm waiting.
Every chip when running outside spec would lose efficiency. You seem to be of the inclination that only something like P95 is what AVX is used for. Like I said, a 4K x265 transcode makes thorough utilization of AVX while being a real-world use case and under such loads you can approach power consumption levels that you usually get with P95 or Linpack. There is a reason why AVX-specific turbo ratios are a thing. Either way, this 28C CPU at 5GHz will draw excess of 1KW when subject to such kind of loads, which is why Intel probably showed us only Cinebench because on this CPU it will finish the render in a few seconds before hitting the thermal throttle threshold.

The real engineering feat in this case is the 28-phase VRM behemoth of a motherboard prototype that this thing was running on, rather than the fact that it was doing 5GHz for a Cinebench run.
 
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jpiniero

Lifer
Oct 1, 2010
16,818
7,258
136
Why could it not be Cascade Lake XCC?

Pretty sure someone "confirmed" it, but it makes sense when you factor in the need to unload the dies. The LCC and HCC models could just be Cascade Lake instead of more Skylake and then Cascade Lake later.
 

dacostafilipe

Senior member
Oct 10, 2013
805
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dysgeqoe1d211.jpg


Source: https://www.reddit.com/r/Amd/comments/8ozm3g/intel_28_core_50_ghz_demo_cooling_revealed_and_it/
 
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IEC

Elite Member
Super Moderator
Jun 10, 2004
14,600
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32 power phases
4x 8-pin CPU power
1kg+ VRM cooler with 4x fans
1000W+ water chiller
Custom water cooling loop with insulation due to sub-ambient temps (delay/prevent condensation)

We were looking at 400W+ to hit 5GHz on 18 core parts, so 5GHz on a 28 core part could easily be north of 600W for the CPU alone.

You would trip a breaker if you tried to run this setup in a US home due to the 1kW+ water chiller (120V AC, 15-20A per breaker).

Edit: Updated with correct (even higher #) of power phases.
 
Last edited:

tamz_msc

Diamond Member
Jan 5, 2017
3,865
3,730
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28 vCore power phases
4x 8-pin CPU power
1kg+ VRM cooler with 4x fans
1000W+ water chiller
Custom water cooling loop with insulation due to sub-ambient temps (delay/prevent condensation)

We were looking at 400W+ to hit 5GHz on 18 core parts, so 5GHz on a 28 core part could easily be north of 600W for the CPU alone.

You would trip a breaker if you tried to run this setup in a US home due to the 1kW+ water chiller (120V AC, 15-20A per breaker).
Actually you break 400W on even the 7900X if you try to push it past 4.7 GHz
 
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LTC8K6

Lifer
Mar 10, 2004
28,520
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People trying to run a bunch of cores at high clock speeds would expect to need a lot of power, though.
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,576
126
32 power phases
4x 8-pin CPU power
1kg+ VRM cooler with 4x fans
1000W+ water chiller
Custom water cooling loop with insulation due to sub-ambient temps (delay/prevent condensation)

We were looking at 400W+ to hit 5GHz on 18 core parts, so 5GHz on a 28 core part could easily be north of 600W for the CPU alone.

You would trip a breaker if you tried to run this setup in a US home due to the 1kW+ water chiller (120V AC, 15-20A per breaker).

Edit: Updated with correct (even higher #) of power phases.
Why didn't they just overclock it on LN2?
 
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maddie

Diamond Member
Jul 18, 2010
5,156
5,545
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Someone woke the sleeping giant...

https://wccftech.com/intel-28-core-x-hedt-cpu-8th-gen-8-core-updates-2018/
"The 28 cores and 56 threads for consumers and enthusiasts would be unlike anything that has been done on the HEDT platform before. In Cinebench, the chip was shown running at 5.00 GHz across all cores (2.70 GHz base) and scored 7334 multi-core points. In comparison, an overclocked Core i9-7980XE with 18 cores and 36 threads scores around 5000 points so that is a mighty jump."
"
To see the horror unfolding.

Amazing what one day can bring. The thrill of victory morphing into the agony of defeat.

Just teasing as little. No hard feelings meant.