| | | | | | |

Core i9-9900KF vs Ryzen 7 7700X


Description
The i9-9900KF is based on Coffee Lake architecture while the 7700X is based on Zen 4.

Using the multithread performance as a reference, the i9-9900KF gets a score of 592.9 k points while the 7700X gets 752.6 k points.

Summarizing, the 7700X is 1.3 times faster than the i9-9900KF. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
a60f12
Core
Coffee Lake-S
Raphael
Architecture
Coffee Lake
Base frecuency
3.6 GHz
4.5 GHz
Boost frecuency
5 GHz
5.4 GHz
Socket
LGA 1151
AM5
Cores/Threads
8/16
8/16
TDP
95 W
105 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x32 kB
Cache L2
8x256 kB
8x1024 kB
Cache L3
16386 kB
32768 kB
Date
January 2019
September 2022
Mean monothread perf.
84.54k points
115.23k points
Mean multithread perf.
592.86k points
752.57k 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
i9-9900KF
7700X
Test#1 (Integers)
33.03k
38.8k (x1.17)
Test#2 (FP)
29.52k
30.25k (x1.02)
Test#3 (Generic, ZIP)
6.55k
15.58k (x2.38)
Test#1 (Memory)
15.45k
30.59k (x1.98)
TOTAL
84.54k
115.23k (x1.36)

Multithread

i9-9900KF

7700X
Test#1 (Integers)
276.22k
307.13k (x1.11)
Test#2 (FP)
250.61k
261.07k (x1.04)
Test#3 (Generic, ZIP)
57.2k
133.91k (x2.34)
Test#1 (Memory)
8.84k
50.47k (x5.71)
TOTAL
592.86k
752.57k (x1.27)

Performance/W
i9-9900KF
7700X
Test#1 (Integers)
2908 points/W
2925 points/W
Test#2 (FP)
2638 points/W
2486 points/W
Test#3 (Generic, ZIP)
602 points/W
1275 points/W
Test#1 (Memory)
93 points/W
481 points/W
TOTAL
6241 points/W
7167 points/W

Performance/GHz
i9-9900KF
7700X
Test#1 (Integers)
6605 points/GHz
7186 points/GHz
Test#2 (FP)
5904 points/GHz
5603 points/GHz
Test#3 (Generic, ZIP)
1309 points/GHz
2885 points/GHz
Test#1 (Memory)
3090 points/GHz
5665 points/GHz
TOTAL
16909 points/GHz
21338 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