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Core i7-12800H vs i7-6900K


Description
The i7-12800H is based on Alder Lake architecture while the i7-6900K is based on Broadwell.

Using the multithread performance as a reference, the i7-12800H gets a score of 467.4 k points while the i7-6900K gets 427.5 k points.

Summarizing, the i7-12800H is 1.1 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a3
406f1
Core
Alder Lake-H
Broadwell-E
Architecture
Base frecuency
2.4 GHz
3.2 GHz
Boost frecuency
4.8 GHz
3.7 GHz
Socket
BGA 1744
LGA 2011-3
Cores/Threads
14/20
8/16
TDP
45 W
140 W
Cache L1 (d+i)
6x32/8x64+6x48/8x32 kB
8x32+8x32 kB
Cache L2
6x1280/2x2048 kB
8x256 kB
Cache L3
24576 kB
20480 kB
Date
February 2022
September 2016
Mean monothread perf.
67.13k points
49.76k points
Mean multithread perf.
467.41k points
427.51k 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
i7-6900K
Test#1 (Integers)
28.42k
23.11k (x0.81)
Test#2 (FP)
18.93k
17.84k (x0.94)
Test#3 (Generic, ZIP)
9.92k
5.34k (x0.54)
Test#1 (Memory)
9.86k
3.47k (x0.35)
TOTAL
67.13k
49.76k (x0.74)

Multithread

i7-12800H

i7-6900K
Test#1 (Integers)
205.57k
184.19k (x0.9)
Test#2 (FP)
159.7k
181.2k (x1.13)
Test#3 (Generic, ZIP)
82.78k
47.44k (x0.57)
Test#1 (Memory)
19.36k
14.69k (x0.76)
TOTAL
467.41k
427.51k (x0.91)

Performance/W
i7-12800H
i7-6900K
Test#1 (Integers)
4568 points/W
1316 points/W
Test#2 (FP)
3549 points/W
1294 points/W
Test#3 (Generic, ZIP)
1840 points/W
339 points/W
Test#1 (Memory)
430 points/W
105 points/W
TOTAL
10387 points/W
3054 points/W

Performance/GHz
i7-12800H
i7-6900K
Test#1 (Integers)
5921 points/GHz
6247 points/GHz
Test#2 (FP)
3944 points/GHz
4822 points/GHz
Test#3 (Generic, ZIP)
2066 points/GHz
1444 points/GHz
Test#1 (Memory)
2055 points/GHz
938 points/GHz
TOTAL
13986 points/GHz
13450 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