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Ryzen 9 7950X vs Core i7-7700K


Description
The 7950X is based on Zen 4 architecture while the i7-7700K is based on Kaby Lake.

Using the multithread performance as a reference, the 7950X gets a score of 1597.8 k points while the i7-7700K gets 289.8 k points.

Summarizing, the 7950X is 5.5 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a60f12
906e9
Core
Raphael
Kaby Lake-S
Architecture
Zen 4
Base frecuency
4.5 GHz
4.2 GHz
Boost frecuency
5.7 GHz
4.5 GHz
Socket
AM5
LGA 1151
Cores/Threads
16/32
4/8
TDP
170 W
95 W
Cache L1 (d+i)
16x32+16x32 kB
32+32 kB
Cache L2
16x1024 kB
256 kB
Cache L3
131072 kB
8192 kB
Date
September 2022
September 2016
Mean monothread perf.
121.33k points
76.9k points
Mean multithread perf.
1597.79k points
289.82k 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
7950X
i7-7700K
Test#1 (Integers)
6.05k
4.63k (x0.77)
Test#2 (FP)
23.41k
18.92k (x0.81)
Test#3 (Generic, ZIP)
16.49k
6.22k (x0.38)
Test#1 (Memory)
34.35k
13.92k (x0.41)
TOTAL
80.3k
43.7k (x0.54)

Multithread

7950X

i7-7700K
Test#1 (Integers)
128.82k
18.53k (x0.14)
Test#2 (FP)
465.79k
86.49k (x0.19)
Test#3 (Generic, ZIP)
289.43k
28.78k (x0.1)
Test#1 (Memory)
75.23k
9.67k (x0.13)
TOTAL
959.27k
143.47k (x0.15)

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
7950X
i7-7700K
Test#1 (Integers)
26.86k
17.55k (x0.65)
Test#2 (FP)
30.05k
27.82k (x0.93)
Test#3 (Generic, ZIP)
16.15k
6.8k (x0.42)
Test#1 (Memory)
31.74k
14.83k (x0.47)
TOTAL
104.8k
67k (x0.64)

Multithread

7950X

i7-7700K
Test#1 (Integers)
430.6k
68.4k (x0.16)
Test#2 (FP)
545.91k
118.8k (x0.22)
Test#3 (Generic, ZIP)
289.57k
33.34k (x0.12)
Test#1 (Memory)
64.33k
17.43k (x0.27)
TOTAL
1330.41k
237.97k (x0.18)

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
7950X
i7-7700K
Test#1 (Integers)
40.61k
30.44k (x0.75)
Test#2 (FP)
31.82k
26.91k (x0.85)
Test#3 (Generic, ZIP)
16.63k
6.25k (x0.38)
Test#1 (Memory)
32.28k
13.3k (x0.41)
TOTAL
121.33k
76.9k (x0.63)

Multithread

7950X

i7-7700K
Test#1 (Integers)
683.17k
127.73k (x0.19)
Test#2 (FP)
563.45k
123.68k (x0.22)
Test#3 (Generic, ZIP)
286.77k
29.34k (x0.1)
Test#1 (Memory)
64.4k
9.08k (x0.14)
TOTAL
1597.79k
289.82k (x0.18)

Performance/W
7950X
i7-7700K
Test#1 (Integers)
4019 points/W
1345 points/W
Test#2 (FP)
3314 points/W
1302 points/W
Test#3 (Generic, ZIP)
1687 points/W
309 points/W
Test#1 (Memory)
379 points/W
96 points/W
TOTAL
9399 points/W
3051 points/W

Performance/GHz
7950X
i7-7700K
Test#1 (Integers)
7124 points/GHz
6765 points/GHz
Test#2 (FP)
5582 points/GHz
5981 points/GHz
Test#3 (Generic, ZIP)
2917 points/GHz
1388 points/GHz
Test#1 (Memory)
5663 points/GHz
2955 points/GHz
TOTAL
21286 points/GHz
17089 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