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Core i7-12800H vs i7-8700k


Description
The i7-12800H is based on Alder Lake architecture while the i7-8700k is based on Coffee Lake.

Using the multithread performance as a reference, the i7-12800H gets a score of 467.4 k points while the i7-8700k gets 443.8 k points.

Summarizing, the i7-12800H is 1.1 times faster than the i7-8700k. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a3
906ea
Core
Alder Lake-H
Coffee Lake-S
Architecture
Base frecuency
2.4 GHz
3.7 GHz
Boost frecuency
4.8 GHz
4.7 GHz
Socket
BGA 1744
LGA 1151
Cores/Threads
14/20
6/12
TDP
45 W
95 W
Cache L1 (d+i)
6x32/8x64+6x48/8x32 kB
6x32+6x32 kB
Cache L2
6x1280/2x2048 kB
6x256 kB
Cache L3
24576 kB
12288 kB
Date
February 2022
October 2017
Mean monothread perf.
67.13k points
80.6k points
Mean multithread perf.
467.41k points
443.77k 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
i7-12800H
i7-8700k
Test#1 (Integers)
28.42k
31.2k (x1.1)
Test#2 (FP)
18.93k
27.82k (x1.47)
Test#3 (Generic, ZIP)
9.92k
6.57k (x0.66)
Test#1 (Memory)
9.86k
15k (x1.52)
TOTAL
67.13k
80.6k (x1.2)

Multithread

i7-12800H

i7-8700k
Test#1 (Integers)
205.57k
202.42k (x0.98)
Test#2 (FP)
159.7k
186.33k (x1.17)
Test#3 (Generic, ZIP)
82.78k
44.96k (x0.54)
Test#1 (Memory)
19.36k
10.05k (x0.52)
TOTAL
467.41k
443.77k (x0.95)

Performance/W
i7-12800H
i7-8700k
Test#1 (Integers)
4568 points/W
2131 points/W
Test#2 (FP)
3549 points/W
1961 points/W
Test#3 (Generic, ZIP)
1840 points/W
473 points/W
Test#1 (Memory)
430 points/W
106 points/W
TOTAL
10387 points/W
4671 points/W

Performance/GHz
i7-12800H
i7-8700k
Test#1 (Integers)
5921 points/GHz
6639 points/GHz
Test#2 (FP)
3944 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
2066 points/GHz
1397 points/GHz
Test#1 (Memory)
2055 points/GHz
3192 points/GHz
TOTAL
13986 points/GHz
17148 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