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Core i7-12700K vs i9-7980XE


Description
The i7-12700K is based on Alder Lake architecture while the i9-7980XE is based on Skylake.

Using the multithread performance as a reference, the i7-12700K gets a score of 1034.1 k points while the i9-7980XE gets 1223.8 k points.

Summarizing, the i9-7980XE is 1.2 times faster than the i7-12700K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
50654
Core
Alder Lake
Skylake-X
Architecture
Base frecuency
2.7 GHz
2.6 GHz
Boost frecuency
5 GHz
4.4 GHz
Socket
LGA 1700
LGA 2066
Cores/Threads
12/20
18/36
TDP
190 W
165 W
Cache L1 (d+i)
8x32/4x64+8x48/4x32 kB
18x32+18x32 kB
Cache L2
8x1280+4x2048 kB
18x1024 kB
Cache L3
25600 kB
25344 kB
Date
November 2021
May 2017
Mean monothread perf.
110.2k points
76.43k points
Mean multithread perf.
1034.06k points
1223.79k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-12700K
i9-7980XE
Test#1 (Integers)
8.44k
4.89k (x0.58)
Test#2 (FP)
21.1k
19.98k (x0.95)
Test#3 (Generic, ZIP)
14.52k
6.14k (x0.42)
Test#1 (Memory)
12.87k
9.81k (x0.76)
TOTAL
56.92k
40.82k (x0.72)

Multithread

i7-12700K

i9-7980XE
Test#1 (Integers)
70.7k
79.8k (x1.13)
Test#2 (FP)
251.29k
372.72k (x1.48)
Test#3 (Generic, ZIP)
159.92k
121.42k (x0.76)
Test#1 (Memory)
32.47k
26.48k (x0.82)
TOTAL
514.38k
600.43k (x1.17)

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
i7-12700K
i9-7980XE
Test#1 (Integers)
52.13k
31.16k (x0.6)
Test#2 (FP)
28.97k
28.13k (x0.97)
Test#3 (Generic, ZIP)
15.04k
6.65k (x0.44)
Test#1 (Memory)
14.07k
10.5k (x0.75)
TOTAL
110.2k
76.43k (x0.69)

Multithread

i7-12700K

i9-7980XE
Test#1 (Integers)
458.8k
560.19k (x1.22)
Test#2 (FP)
377.45k
516.97k (x1.37)
Test#3 (Generic, ZIP)
171.31k
123.94k (x0.72)
Test#1 (Memory)
26.51k
22.69k (x0.86)
TOTAL
1034.06k
1223.79k (x1.18)

Performance/W
i7-12700K
i9-7980XE
Test#1 (Integers)
2415 points/W
3395 points/W
Test#2 (FP)
1987 points/W
3133 points/W
Test#3 (Generic, ZIP)
902 points/W
751 points/W
Test#1 (Memory)
140 points/W
137 points/W
TOTAL
5442 points/W
7417 points/W

Performance/GHz
i7-12700K
i9-7980XE
Test#1 (Integers)
10425 points/GHz
7081 points/GHz
Test#2 (FP)
5794 points/GHz
6392 points/GHz
Test#3 (Generic, ZIP)
3008 points/GHz
1512 points/GHz
Test#1 (Memory)
2813 points/GHz
2386 points/GHz
TOTAL
22040 points/GHz
17371 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