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Single thread/IPC performance since Intel 8th gen?

eddiew

eddiew

eddiew

Soldato
Joined
26 Jan 2007
Posts
2,541
Location
Leeds
Hey folks,

Niche question, but does anyone have a good resource or even anecdotal evidence for how single threaded performance has changed over the past few years? I have an [email protected] (sort of; avx-workloads will down-clock to 4.6), and I've largely been assuming that it's not very far behind a 'modern' CPU on the ST front but... am I wrong?

Basically, I threw Cinebench r15 and r23 at it, and it's scoring like it's on stock clocks (!??), and it's significantly (40%) behind the ST scores of a stock 12th gen equivalent. Even 'just' a stock 5600X is ~30% ahead on the score board.

And it's not that I don't care about multi thread, but most of what I do responds to between 1 and 4 cores. I've been ignoring Ryzen because I didn't think it had anything to offer outside of "moar cores", but I am wondering if I'm actually just an ignorant fool who hasn't kept up with the times...

Thanks for any info!
 
eddiew said:
That's a fair shout. Ran the CPU benchmark and got exactly the same score as an 8086k. Which turbos to 5ghz. Which is my overclock :cry:

Ok, well now I know what to look for in stock for stock comparisons :D Does look like new CPUs are a solid step up, actually. I might have to ponder this...
Click to expand...

Roughly:

9th gen = nope (same cores)
10th gen = nope (same cores)
11th gen = sorta: productivity = yes, games = no
12th gen = yep (quite a bit faster)

Zen 2 = mostly nope
Zen 3 = yes (quite a bit faster)

5 Ghz Coffee too slow for games = nope
5 Ghz Coffee too slow for productivity = yes, it is way behind a modern CPU like 12700K or 5900X
 
eddiew said:
Hey folks,

Niche question, but does anyone have a good resource or even anecdotal evidence for how single threaded performance has changed over the past few years? I have an [email protected] (sort of; avx-workloads will down-clock to 4.6), and I've largely been assuming that it's not very far behind a 'modern' CPU on the ST front but... am I wrong?

Basically, I threw Cinebench r15 and r23 at it, and it's scoring like it's on stock clocks (!??), and it's significantly (40%) behind the ST scores of a stock 12th gen equivalent. Even 'just' a stock 5600X is ~30% ahead on the score board.

And it's not that I don't care about multi thread, but most of what I do responds to between 1 and 4 cores. I've been ignoring Ryzen because I didn't think it had anything to offer outside of "moar cores", but I am wondering if I'm actually just an ignorant fool who hasn't kept up with the times...

Thanks for any info!
Click to expand...

The best result you can get for single-threaded performance is the Geomean of all sub-benchnarks of SPEC2017 1T from Anandtech:

https://www.anandtech.com/bench/CPU-2020/2815

In summary for Intel:

12900K: 11
11900K: 9.7
10900K: 8.2
9900K: 7.7
8700K: 7.2

for AMD:

5950X: 9.7
3950X: 7.5

So a Zen 3 core on a wide range of workloads should be about 35% faster than an Intel 8th gen core, which is inline with your observation.

eddiew said:
Hey folks,

Niche question, but does anyone have a good resource or even anecdotal evidence for how single threaded performance has changed over the past few years? I have an [email protected] (sort of; avx-workloads will down-clock to 4.6), and I've largely been assuming that it's not very far behind a 'modern' CPU on the ST front but... am I wrong?
Click to expand...

Intel 12th gen on DDR5 (fastest ST performance out there) is only about 50% faster than the 4.5 year old Intel 8th gen. So I'd say you're definitely not wrong, 8700K is not far behind it and it can certainly hold its own, but the difference in ST performance is now easily noticeable.
 
Tetras said:
Roughly:
Click to expand...

Good summary, tbh, thank you :)

HACO said:
So a Zen 3 core on a wide range of workloads should be about 35% faster than an Intel 8th gen core, which is inline with your observation.
Click to expand...

Great to have it confirmed, thank you ^^

Well, I might end up considering a 12th gen i5 to replace this 8th gen i7 then... same core count, a lot more performance per core. Could hit the spot in a few places :)
 
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