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Alder Lake IPC?

Soldato
Joined
30 Jun 2019
Posts
8,110
I thought Intel's 12th gen would be at least 10% ahead of the competition, in terms of IPC. It looks like once again, Intel's IPC claims were exaggerated. Now, I'm not so sure.

R15 Cinebench IPC (CPUs clocked at 3.5ghz) chart here:
https://www.guru3d.com/articles_pages/core_i5_12600k_processor_review,7.html

UPDATE - R20 Cinebench (CPUs clocked at 4.0ghz) IPC results do seem to be much more favourable towards Alder Lake:
https://static.tweaktown.com/content/9/9/9974_34_intel-core-i9-12900k-alder-lake-cpu-review.png

So, these results indicate that Alder Lake has an IPC that is around 16.4% higher than Zen 3 CPUs, which is closer to what I'd thought Intel might achieve with the 12th gen.
 
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Eurogamer (if you trust their results) show a boost in 1% lows in gaming that puts it ahead of the other chips even at 1440p and 4k.

I think GN showed one or 2 where it was slightly behind previous chips.
 
Unsure why a 1% difference in ipc is worth mentioning, we need the rest of the info.. Is it 2x the clock, 25% more cores 20% the price, 3x the power draw? Or even 30% faster on average
 
I thought Intel's 12th gen would be at least 10% ahead of the competition, in terms of IPC. It looks like once again, Intel's IPC claims were exaggerated.

IPC chart here:
https://www.guru3d.com/articles_pages/core_i5_12600k_processor_review,7.html

Alder Lake is clocked higher than Zen 3 at the higher end, so this isn't the whole picture.

This probably means AMD can catch up with a 10-15% clock boost. Or, they might be able to increase IPC by adding more cache to Zen 3, presumably for the Ryzen 6000 series.

TSMC wants to transfer ~50% of their '7N' production over to the '6N' fabrication process, by Q4, 2021. So, that would give AMD a nice performance boost, if they choose to take advantage of 6nm for CPUs. More details here:
https://www.pcinvasion.com/amd-6nm-tsmc-2022-ryzen/

EDIT - Still 21% IPC improvement vs Comet Lake though.



before I even click your link I'm I'll take a guess for $1000 that your "ipc" is taken from a. Single application instead of using a suite of 20 or 30 different applications that use different algorithms and instructions to measure IPC. Prove me wrong
 
i mean, IPC is nice and everything but most intel CPUS seem to boost their MHZ even higher than usual right now, cant just ignore that, curious to see whats the boost of an average 12600k
 
before I even click your link I'm I'll take a guess for $1000 that your "ipc" is taken from a. Single application instead of using a suite of 20 or 30 different applications that use different algorithms and instructions to measure IPC. Prove me wrong

Cinebench 15 single threaded, all CPUs clocked 3.5ghz. I'm not saying Alder Lake isn't faster than Zen 3, but there isn't much in it. Reviews on Techpowerup showed an average of 5-10% higher framerate in games on average, depending on if 720p or 4K resolution is set, comparing Alder Lake and the Ryzen 5800X (which seems to be holding up quite well).

It looks like Alder Lake's main advantages come from higher clock speed and core count (to a lesser extent), when compared to CPUs like the 5800X.

There's actually more convincing IPC results here:
https://www.youtube.com/watch?v=xvFZjo5PgG0
 
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There's a few games that see a noticeably higher 1% low framerates, examples here:
https://static.techspot.com/articles-info/2351/bench/WDL.png
https://static.techspot.com/articles-info/2351/bench/AoE4.png

Quite a useful 10 game average chart here:

Average.png

So, around 8% higher 1% low frame rates, comparing the 12900K (with DDR5 6000mhz) to the 5900X.
 
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If you want to see a big improvement, try this.

Its cyberpunk 2077 tested with 2080ti and then rtx3090.

12th gen helps to break through the CPU bottleneck in this game with Nvidia GPU with Ray Tracing on, 12600k offering 35% higher frames compared to 11600k and 5600x.

goo89oe92qx71.png
 
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The performance per watt is really bad compared to AMD's Zen 3 Vermeer.
It may be because of the broken and not fixed Intel 10nm manufacturing node.

TPU has some stupid graphs for energy usage measured in kJ for the whole system.
While it should be a normalised performance at 95-watt power consumption and then measured the relative performance of each CPU.
Maybe because they got paid by Intel not to reveal the real picture of the things:


Intel Core i9-12900K Review - Fighting for the Performance Crown - Power Consumption & Efficiency | TechPowerUp
 
@Grim5 - Some impressive performance for Alder Lake in CP 2077, at 1080p and 4K.

I wonder if this could be related to using DDR5 RAM?

I suspect it is because of the ring bus, the monolithic design and some artificial intelligence for improving the performance in particular apps that are easy to be optimised for.
All low latencies, while AMD's Zen 3 has very high latencies which result in poor gaming performance.
 
If you want to see a big improvement, try this.

Its cyberpunk 2077 tested with 2080ti and then rtx3090.

12th gen helps to break through the CPU bottleneck in this game with Nvidia GPU with Ray Tracing on, 12600k offering 35% higher frames compared to 11600k and 5600x.

goo89oe92qx71.png

Wow, huge gains there! This is next on my playlist, can't wait!

Even more impressive when you consider this performance is delivered while using less power than the 5950x, while being a cheaper CPU!

GjxwJlp.png
 
Wow, huge gains there! This is next on my playlist, can't wait!

If you haven’t already tried the game and you can wait, then I would hold off on starting it until next year and the larger DLC releases to play it. The next (current) gen updates have been pushed back to 2022 and even with the updates it’s had in the last 11 months it still doesn’t feel finished.

It looks great, but that was never really an issue, it looked great at launch.
 
Wow, huge gains there! This is next on my playlist, can't wait!

Even more impressive when you consider this performance is delivered while using less power than the 5950x, while being a cheaper CPU!

GjxwJlp.png

This post made me cancel both my Alder lake orders.
 
Eurogamer is an Intel rag, they've gone out of their way on multiple occasions to find buggy scenes to show Intel CPUs in a better light instead of properly benchmarking the games (such as with Metro Exodus). Guess why they're being sent free Intel systems to have as their rigs. ;)

Reality is different, ain't no 45% perf differences vs a 5950x least of all at 1080p c'mon now:

XRQZgXD.jpg
JIM63eh.jpg.png
 
If you haven’t already tried the game and you can wait, then I would hold off on starting it until next year and the larger DLC releases to play it. The next (current) gen updates have been pushed back to 2022 and even with the updates it’s had in the last 11 months it still doesn’t feel finished.

It looks great, but that was never really an issue, it looked great at launch.

Thanks for the tip, think I'll take your advice on that one. Would prefer to play it polished/finished if possible. Lots of other games in my steam library to do in the meantime!
 
That ipc test done by guru3d was done on alderlakes E core.
Haha. I think not, the result shows performance that is still 21% higher core, per clock, compared to Comet Lake. Intel said the E-cores would be within 1% of Comet Lake cores, in term of IPC.

Why the heck would they run the test on one of the slower cores :rolleyes:

We are still looking at a CPU series that offers around 8% higher 1% low framerates on average (1080p), and upto 10% higher average framerates, vs Zen 3 CPUs.

Average framerates at 720p and 4K here:
https://www.techpowerup.com/review/intel-core-i9-12900k-alder-lake-12th-gen/15.html
https://www.techpowerup.com/review/intel-core-i9-12900k-alder-lake-12th-gen/18.html

At 4K, the average framerate is only about 2% higher than the 5800X.

Edit - I think it's worth pointing out that the load temperatures (tested in Blender) of the 12700K and 12600K are better at stock settings, compared to the 5800X, so well done Intel.

But the 92 degrees Celsius stock settings temp of the 12900K is just beyond reason. I suppose you need a mega cooler. What's weird is that disabling the E-cores doesn't seem to lower temps. Link here:
https://www.techpowerup.com/review/intel-core-i9-12900k-alder-lake-12th-gen/21.html
 
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But the 92 degrees Celsius stock settings temp of the 12900K is just beyond reason. I suppose you need a mega cooler. What's weird is that disabling the E-cores doesn't seem to lower temps. Link here

There should an advert on Intel website like: "Ready for Siberian weather"

It would be blyatiful
 
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