Friday, September 9th 2022
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Core Performance Boost Contributes 14% to Ryzen 5 7600X Cinebench R23 Score
AMD Ryzen 5 7600X "Zen 4" 6-core/12-thread processor is shaping up to be a speed-demon for purely gaming builds, with the company claiming higher gaming performance than Intel current flagship Core i9-12900K. A combination of high clock speeds (4.70 GHz nominal, 5.30 GHz max boost), high power limits from 105 W TDP (130 W limit), the "Zen 4" IPC, and the fact that all that power headroom is available to just 6 cores, means that the chip is able to sustain boost frequencies better. But what when Core Performance Boost (CPB) is disabled? VideoCardz scored screenshots of a Cinebench R23 run to answer just that.
With CPB disabled (in the motherboard BIOS), the Ryzen 5 7600X scores 1681 points in the single-threaded test, and 13003 points in the multi-threaded one. With CPB enabled (which is the default setting), the 7600X bags 1920 points single-threaded, and 14767 points multi-threaded, which is a 14% performance increase just from the processor's boosting algo. Disabling CPB is generally seen as a silver-bullet against high temperatures for AMD processors, and even here, we see the chip running under 60°C, and pulling 60.2 W peak, as measured by HWinfo; whereas with CPB enabled, the chip can run as hot as 92.1°C, pulling up to 110 W, pushing clock speeds up to 4.45 GHz.
Source:
VideoCardz
With CPB disabled (in the motherboard BIOS), the Ryzen 5 7600X scores 1681 points in the single-threaded test, and 13003 points in the multi-threaded one. With CPB enabled (which is the default setting), the 7600X bags 1920 points single-threaded, and 14767 points multi-threaded, which is a 14% performance increase just from the processor's boosting algo. Disabling CPB is generally seen as a silver-bullet against high temperatures for AMD processors, and even here, we see the chip running under 60°C, and pulling 60.2 W peak, as measured by HWinfo; whereas with CPB enabled, the chip can run as hot as 92.1°C, pulling up to 110 W, pushing clock speeds up to 4.45 GHz.
116 Comments on Core Performance Boost Contributes 14% to Ryzen 5 7600X Cinebench R23 Score
Then I'll wait to see what comes in 3 years with Nova Lake vs Zen (probably 6). Interestingly, Zen 6 should be a big.little architecture as well, using Zen 5 performance cores and low power Zen 4 for little cores. At least, that is the current rumor. So the march towards more and more threads, which mostly nobody needs, continues.
www.hardwaretimes.com/details-regarding-amds-future-big-little-architecture-surfaces-via-patent-separate-dies-and-process-node-for-different-core-clusters/
And as high as prices seem now, this may be the last time you can get a high end CPU like a 12700K for 'cheap'.
wccftech.com/intel-price-hike-to-affect-cpus-motherboard-chipsets-in-q4-up-to-20-percent-increase/
Also, saying Zen cores are further apart is similarly inaccurate. Their smaller size means they are grouped closer per CCD, meaning that per CCD, not only is thermal density higher because of smaller cores, but it's doubly higher because of smaller cores that are grouped closer together. And, as Zen works with all modern schedulers to focus workloads onto one CCD as much as possible, relatively little work will be spread across the spatially separated CCDs until this is necessitated by the workload (essentially one or more heavy workloads exceeding the non-SMT thread count of one CCD). If you run a heavy 8T workload on a 5950X, the second CCD will be used only for background tasks, or will be asleep. Zen, at least Zen3 but IIRC also Zen2, is very aggressive in shuffling low threaded work between cores to avoid them overheating, but this is AFAIK entirely limited to the same CCD, as the latency penalty of moving a thread from one CCD to the other would be far too high, and would tank performance.
What you say above about the thermal conductivity makes it seem like you don't understand the core of this issue at all. A larger die area doesn't help cooling because of the thermal conductivity of silicon, it helps because the thermal energy is converted from electrical energy across a larger area, meaning that the temperature increase acorss said area will be lower. This isn't because of thermal conductivity, but simply a product of area (or really volume) of material vs. the absolute amount of energy in play. If you put a blowtorch to a penny, that penny will melt. If you were able to spread that same blowtorch flame across a bunch of pennies - even if their circular shape makes them conduct energy between each other very poorly - each penny would be much cooler.
The i5-12500 works at 4.1GHz with all cores and can reach 4.6GHz with two. Now, it is the equivalent of the 5600 in the class. For the 7600X, the rival will be the 13600K, but it seems that it has problems even in front of the 12600K.
Regarding temperatures, the AMD processor has a smaller dissipation surface and the cooler must be more efficient. Even if it consumes less, the number of watts to be dissipated per mm2 is higher. At the same consumption as Intel, the cooler for AMD must be much more efficient.
Note: it would be perfect for us if the two companies launch processors with very similar performances. They will compete in tempting offers.
This just the same CPU running at base clock and on full boost...
At single thread this 7600X is doing more at 4.7GHz than my 5900X at 4.9~5.0GHz.
Read again what @Daven said... he uses percentages of the non boosting 7600X to the boosting 7600X to say something about the Zen4 IPC against Zen3 IPC...
Cant you see any flaw on that? Because some manufactures (if not all) are pushing their products to the edge and outside the efficiency curve in the name of competition.
On some chips you can cut down 20~30% of power and loose "just" 5% of performance.
Contemplating 32GB 3600 14-14-14 Mushkin sticks right now :laugh:
Only because the Adatas I have in my kids rig has some issues from time to time.