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An entry for Intel’s Alder Lake-S-based Core i7-12700K processor has likely been discovered in the SiSoftware Sandra database. The spotted processor was running on a desktop platform and will be part of the Alder Lake-S segment scheduled to launch later this year.
Spotted Intel Core i7-12700K Alder Lake-S Desktop Processor – 12 Cores, 20 Threads, 25MB L3 Cache
The processor doesn’t have a name, but given its specs, we’re most definitely looking at Intel’s Core i7-12700K (12700) SKU based on older leaks. The sample includes 12 cores of which 8 are based on the Golden Cove and 4 are expected to be based on the Goldmont architecture. This should give us a total of 24 threads (16 performance core threads and 8 efficiency core threads). As for clock speeds, since this is an engineering sample, we are considering a base frequency of 1.20 GHz and a boost frequency of 3.40 GHz, but we expect that they are much higher in the retail and final qualification variants.
List of Intel Alder Lake-S Core i7-12700K ES Desktop Processors on SiSoftware (Image Source: Momomo):
Regarding the cache, first of all, the existing software suites are not fully updated to fully recognize Alder Lake-S hybrid processors, as such the actual number of cores and threads may be inaccurate. . This is the case here because the chip is actually identified as a 12-core, 24-thread processor when in reality it should be 12-core and 20-thread. The number of caches is displayed correctly for 9 cores, which means that the software reads the 8 performance cores correctly, but the efficiency core cluster consisting of 4 cores is recognized as 1 whole core. More details on configuring the cache of Alder Lake-S processors can be found here.
Probably i7 12700K
– 12C 20T (wrongly declared as 24T)
– 8 * 1.25 MB + 4 * 384 KB = 11.5 MB L2
> L2 cache is reported as 9 cores, I think it’s just due to 4 small cores = 1 cluster. The reference point could recognize the cluster unit.
– 8 * 2.75MB (cut from full 3MB) + 4 * 768KB = 25MB L3 https://t.co/fO84Bz2qM3– Possiposi (@ harukaze5719) August 9, 2021
The cache is also displayed for the 9 cores at 1.25MB per core when this is not the case. Performance cores carry 1.25MB of cache and efficiency cores would carry 2MB of cache per 4-core cluster. The number of L3 caches matches previous rumors which placed the Core i7-12700K at 25MB of cache. It looks like the cache will be reduced on some Alder Lake-S configurations with this particular chip with a 2.75MB L3 cache (3MB full) on performance and 3MB cache per base cluster of efficiency.
Intel 12th Generation Alder Lake Desktop Specifications “Rumored”
| Processor name | Number of P cores | Number of electronic cores | Total core / wire | Base P-Core / Boost (Max) | P-Core Boost (all heart) | E-Core / Boost base | E-Core Boost (all heart) | Hide | TDP | Price |
|---|---|---|---|---|---|---|---|---|---|---|
| Intel Core i9-12900K | 8 | 8 | 16/24 | To be confirmed / 5.3 GHz | 5.0 GHz (all cores) | TBD / 3.9 GHz | 3.7 GHz (all cores) | 30 MB | 125W (PL1) 228W (PL2) |
To be determined |
| Intel Core i7-12700K | 8 | 4 | 16/20 | To be confirmed / 5.0 GHz | 4.7 GHz (all cores) | To be confirmed / 3.8 GHz | 3.6 GHz (all cores) | 25 MB | 125W (PL1) 228W (PL2) |
To be determined |
| Intel Core i5-12600K | 6 | 4 | 12/16 | TBD / 4.9 GHz | 4.5 GHz (all cores) | To be confirmed / 3.6 GHz | 3.4 GHz (all cores) | 20 MB | 125W (PL1) 228W (PL2) |
To be determined |
This is what the base configuration of all Alder Lake processors would look like:
- Intel Core i9 K-Series (8 Golden + 8 Grace) = 16 cores / 24 threads
- Intel Core i7 K-Series (8 Golden + 4 Grace) = 12 cores / 20 threads
- Intel Core i5 K-Series (6 Golden + 4 Grace) = 10 cores / 16 threads
- Intel Core i9 A-Series (8 Golden + 8 Grace) = 16 cores / 24 threads
- Intel Core i7 A-Series (8 Golden + 4 Grace) = 12 cores / 20 threads
- Intel Core i5 A-Series (6 Golden + 0 Grace) = 6 cores / 12 threads
- Intel Core i3 A-Series (4 Golden + 0 Grace) = 4 cores / 8 threads
The Alder Lake-S Core i7-12700K processor has been tested on a desktop platform that includes 16 GB DDR5-4800 (PC76800) Memory. Judging by the test setup, this is definitely a pre-test board and not a proper Z690 motherboard that is expected to launch in Q4 2021.
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