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Core i7-12700 vs i7-6900K


Description
The i7-12700 is based on Alder Lake architecture while the i7-6900K is based on Broadwell.

Using the multithread performance as a reference, the i7-12700 gets a score of 698.3 k points while the i7-6900K gets 427.5 k points.

Summarizing, the i7-12700 is 1.6 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
406f1
Core
Alder Lake-S
Broadwell-E
Architecture
Base frecuency
3.3 GHz
3.2 GHz
Boost frecuency
4.9 GHz
3.7 GHz
Socket
LGA 1700
LGA 2011-3
Cores/Threads
12/20
8/16
TDP
65 W
140 W
Cache L1 (d+i)
8x32/4x64+8x48/4x32 kB
8x32+8x32 kB
Cache L2
8x1280+4x2048 kB
8x256 kB
Cache L3
25600 kB
20480 kB
Date
November 2021
September 2016
Mean monothread perf.
104.01k points
49.76k points
Mean multithread perf.
698.34k 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
i7-12700
i7-6900K
Test#1 (Integers)
48.39k
23.11k (x0.48)
Test#2 (FP)
26.92k
17.84k (x0.66)
Test#3 (Generic, ZIP)
13.37k
5.34k (x0.4)
Test#1 (Memory)
15.34k
3.47k (x0.23)
TOTAL
104.01k
49.76k (x0.48)

Multithread

i7-12700

i7-6900K
Test#1 (Integers)
415.67k
184.19k (x0.44)
Test#2 (FP)
158.57k
181.2k (x1.14)
Test#3 (Generic, ZIP)
109.37k
47.44k (x0.43)
Test#1 (Memory)
14.72k
14.69k (x1)
TOTAL
698.34k
427.51k (x0.61)

Performance/W
i7-12700
i7-6900K
Test#1 (Integers)
6395 points/W
1316 points/W
Test#2 (FP)
2440 points/W
1294 points/W
Test#3 (Generic, ZIP)
1683 points/W
339 points/W
Test#1 (Memory)
226 points/W
105 points/W
TOTAL
10744 points/W
3054 points/W

Performance/GHz
i7-12700
i7-6900K
Test#1 (Integers)
9876 points/GHz
6247 points/GHz
Test#2 (FP)
5493 points/GHz
4822 points/GHz
Test#3 (Generic, ZIP)
2728 points/GHz
1444 points/GHz
Test#1 (Memory)
3131 points/GHz
938 points/GHz
TOTAL
21227 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