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Core i9-12900KF vs Ryzen 9 7950X


Description
The i9-12900KF is based on Alder Lake architecture while the 7950X is based on Zen 4.

Using the multithread performance as a reference, the i9-12900KF gets a score of 1219.3 k points while the 7950X gets 1597.8 k points.

Summarizing, the 7950X is 1.3 times faster than the i9-12900KF. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
a60f12
Core
Alder Lake-S
Raphael
Architecture
Alder Lake
Base frecuency
3.2 GHz
4.5 GHz
Boost frecuency
5.2 GHz
5.7 GHz
Socket
LGA 1700
AM5
Cores/Threads
16/24
16/32
TDP
125 W
170 W
Cache L1 (d+i)
8x32/8x64+8x48/8x32 kB
16x32+16x32 kB
Cache L2
8x1280+8x2048 kB
16x1024 kB
Cache L3
30720 kB
131072 kB
Date
November 2021
September 2022
Mean monothread perf.
120.97k points
121.33k points
Mean multithread perf.
1219.33k points
1597.79k points

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i9-12900KF
7950X
Test#1 (Integers)
28.96k
26.86k (x0.93)
Test#2 (FP)
30k
30.05k (x1)
Test#3 (Generic, ZIP)
16.94k
16.15k (x0.95)
Test#1 (Memory)
17.14k
31.74k (x1.85)
TOTAL
93.05k
104.8k (x1.13)

Multithread

i9-12900KF

7950X
Test#1 (Integers)
166.25k
430.6k (x2.59)
Test#2 (FP)
172.03k
545.91k (x3.17)
Test#3 (Generic, ZIP)
96.95k
289.57k (x2.99)
Test#1 (Memory)
55.78k
64.33k (x1.15)
TOTAL
491.01k
1330.41k (x2.71)

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
i9-12900KF
7950X
Test#1 (Integers)
57.05k
40.61k (x0.71)
Test#2 (FP)
29.66k
31.82k (x1.07)
Test#3 (Generic, ZIP)
16.48k
16.63k (x1.01)
Test#1 (Memory)
17.78k
32.28k (x1.82)
TOTAL
120.97k
121.33k (x1)

Multithread

i9-12900KF

7950X
Test#1 (Integers)
546.04k
683.17k (x1.25)
Test#2 (FP)
437.01k
563.45k (x1.29)
Test#3 (Generic, ZIP)
211.36k
286.77k (x1.36)
Test#1 (Memory)
24.92k
64.4k (x2.58)
TOTAL
1219.33k
1597.79k (x1.31)

Performance/W
i9-12900KF
7950X
Test#1 (Integers)
4368 points/W
4019 points/W
Test#2 (FP)
3496 points/W
3314 points/W
Test#3 (Generic, ZIP)
1691 points/W
1687 points/W
Test#1 (Memory)
199 points/W
379 points/W
TOTAL
9755 points/W
9399 points/W

Performance/GHz
i9-12900KF
7950X
Test#1 (Integers)
10972 points/GHz
7124 points/GHz
Test#2 (FP)
5704 points/GHz
5582 points/GHz
Test#3 (Generic, ZIP)
3170 points/GHz
2917 points/GHz
Test#1 (Memory)
3419 points/GHz
5663 points/GHz
TOTAL
23264 points/GHz
21286 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