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Core i9-7980XE vs i9-12900KF


Description
The i9-7980XE is based on Skylake architecture while the i9-12900KF is based on Alder Lake.

Using the multithread performance as a reference, the i9-7980XE gets a score of 1223.8 k points while the i9-12900KF gets 1219.3 k points.

Summarizing, the i9-7980XE is 1 times faster than the i9-12900KF. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
50654
90672
Core
Skylake-X
Alder Lake-S
Architecture
Base frecuency
2.6 GHz
3.2 GHz
Boost frecuency
4.4 GHz
5.2 GHz
Socket
LGA 2066
LGA 1700
Cores/Threads
18/36
16/24
TDP
165 W
125 W
Cache L1 (d+i)
18x32+18x32 kB
8x32/8x64+8x48/8x32 kB
Cache L2
18x1024 kB
8x1280+8x2048 kB
Cache L3
25344 kB
30720 kB
Date
May 2017
November 2021
Mean monothread perf.
76.43k points
120.97k points
Mean multithread perf.
1223.79k points
1219.33k points

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i9-7980XE
i9-12900KF
Test#1 (Integers)
31.16k
57.05k (x1.83)
Test#2 (FP)
28.13k
29.66k (x1.05)
Test#3 (Generic, ZIP)
6.65k
16.48k (x2.48)
Test#1 (Memory)
10.5k
17.78k (x1.69)
TOTAL
76.43k
120.97k (x1.58)

Multithread

i9-7980XE

i9-12900KF
Test#1 (Integers)
560.19k
546.04k (x0.97)
Test#2 (FP)
516.97k
437.01k (x0.85)
Test#3 (Generic, ZIP)
123.94k
211.36k (x1.71)
Test#1 (Memory)
22.69k
24.92k (x1.1)
TOTAL
1223.79k
1219.33k (x1)

Performance/W
i9-7980XE
i9-12900KF
Test#1 (Integers)
3395 points/W
4368 points/W
Test#2 (FP)
3133 points/W
3496 points/W
Test#3 (Generic, ZIP)
751 points/W
1691 points/W
Test#1 (Memory)
137 points/W
199 points/W
TOTAL
7417 points/W
9755 points/W

Performance/GHz
i9-7980XE
i9-12900KF
Test#1 (Integers)
7081 points/GHz
10972 points/GHz
Test#2 (FP)
6392 points/GHz
5704 points/GHz
Test#3 (Generic, ZIP)
1512 points/GHz
3170 points/GHz
Test#1 (Memory)
2386 points/GHz
3419 points/GHz
TOTAL
17371 points/GHz
23264 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4