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Core i7-7700K vs Ryzen 7 5800X


Description
The i7-7700K is based on Kaby Lake architecture while the 5800X is based on Zen 3.

Using the multithread performance as a reference, the i7-7700K gets a score of 289.8 k points while the 5800X gets 558.4 k points.

Summarizing, the 5800X is 1.9 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
a20f12
Core
Kaby Lake-S
Vermeer
Architecture
Base frecuency
4.2 GHz
3.8 GHz
Boost frecuency
4.5 GHz
4.7 GHz
Socket
LGA 1151
AM4
Cores/Threads
4/8
8/16
TDP
95 W
105 W
Cache L1 (d+i)
32+32 kB
8x32+8x32 kB
Cache L2
256 kB
8x512 kB
Cache L3
8192 kB
32768 kB
Date
September 2016
November 2020
Mean monothread perf.
76.9k points
89.53k points
Mean multithread perf.
289.82k points
558.41k 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
i7-7700K
5800X
Test#1 (Integers)
4.63k
4.98k (x1.08)
Test#2 (FP)
18.92k
20.57k (x1.09)
Test#3 (Generic, ZIP)
6.22k
12.22k (x1.96)
Test#1 (Memory)
13.92k
28.62k (x2.06)
TOTAL
43.7k
66.39k (x1.52)

Multithread

i7-7700K

5800X
Test#1 (Integers)
18.53k
35.09k (x1.89)
Test#2 (FP)
86.49k
171.84k (x1.99)
Test#3 (Generic, ZIP)
28.78k
107.67k (x3.74)
Test#1 (Memory)
9.67k
10.83k (x1.12)
TOTAL
143.47k
325.43k (x2.27)

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
i7-7700K
5800X
Test#1 (Integers)
17.55k
18.1k (x1.03)
Test#2 (FP)
27.82k
26.41k (x0.95)
Test#3 (Generic, ZIP)
6.8k
12.39k (x1.82)
Test#1 (Memory)
14.83k
26.06k (x1.76)
TOTAL
67k
82.95k (x1.24)

Multithread

i7-7700K

5800X
Test#1 (Integers)
68.4k
125.9k (x1.84)
Test#2 (FP)
118.8k
233.26k (x1.96)
Test#3 (Generic, ZIP)
33.34k
109.66k (x3.29)
Test#1 (Memory)
17.43k
10.21k (x0.59)
TOTAL
237.97k
479.02k (x2.01)

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
i7-7700K
5800X
Test#1 (Integers)
30.44k
24.3k (x0.8)
Test#2 (FP)
26.91k
26.46k (x0.98)
Test#3 (Generic, ZIP)
6.25k
12.18k (x1.95)
Test#1 (Memory)
13.3k
26.58k (x2)
TOTAL
76.9k
89.53k (x1.16)

Multithread

i7-7700K

5800X
Test#1 (Integers)
127.73k
187.4k (x1.47)
Test#2 (FP)
123.68k
246.12k (x1.99)
Test#3 (Generic, ZIP)
29.34k
113.16k (x3.86)
Test#1 (Memory)
9.08k
11.74k (x1.29)
TOTAL
289.82k
558.41k (x1.93)

Performance/W
i7-7700K
5800X
Test#1 (Integers)
1345 points/W
1785 points/W
Test#2 (FP)
1302 points/W
2344 points/W
Test#3 (Generic, ZIP)
309 points/W
1078 points/W
Test#1 (Memory)
96 points/W
112 points/W
TOTAL
3051 points/W
5318 points/W

Performance/GHz
i7-7700K
5800X
Test#1 (Integers)
6765 points/GHz
5170 points/GHz
Test#2 (FP)
5981 points/GHz
5631 points/GHz
Test#3 (Generic, ZIP)
1388 points/GHz
2592 points/GHz
Test#1 (Memory)
2955 points/GHz
5656 points/GHz
TOTAL
17089 points/GHz
19049 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