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Ryzen 7 3800X vs Core i7-7700K


Description
The 3800X is based on Zen 2 architecture while the i7-7700K is based on Kaby Lake.

Using the multithread performance as a reference, the 3800X gets a score of 497.7 k points while the i7-7700K gets 289.9 k points.

Summarizing, the 3800X is 1.7 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
870f10
906e9
Core
Matisse
Kaby Lake-S
Architecture
Base frecuency
3.9 GHz
4.2 GHz
Boost frecuency
4.5 GHz
4.5 GHz
Socket
AM4
LGA 1151
Cores/Threads
8/16
4/8
TDP
105 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
32+32 kB
Cache L2
8x512 kB
256 kB
Cache L3
32768 kB
8192 kB
Date
July 2019
September 2016
Mean monothread perf.
75.81k points
76.98k points
Mean multithread perf.
497.74k points
289.9k 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
3800X
i7-7700K
Test#1 (Integers)
4.47k
4.63k (x1.03)
Test#2 (FP)
17.41k
18.92k (x1.09)
Test#3 (Generic, ZIP)
8.23k
6.22k (x0.76)
Test#1 (Memory)
25.15k
13.92k (x0.55)
TOTAL
55.26k
43.7k (x0.79)

Multithread

3800X

i7-7700K
Test#1 (Integers)
36.1k
18.53k (x0.51)
Test#2 (FP)
178.65k
86.49k (x0.48)
Test#3 (Generic, ZIP)
95.98k
28.78k (x0.3)
Test#1 (Memory)
16.03k
9.67k (x0.6)
TOTAL
326.76k
143.47k (x0.44)

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
3800X
i7-7700K
Test#1 (Integers)
16.76k
17.55k (x1.05)
Test#2 (FP)
25.16k
27.82k (x1.11)
Test#3 (Generic, ZIP)
8.76k
6.8k (x0.78)
Test#1 (Memory)
24.3k
14.83k (x0.61)
TOTAL
74.98k
67k (x0.89)

Multithread

3800X

i7-7700K
Test#1 (Integers)
131.36k
68.4k (x0.52)
Test#2 (FP)
198.51k
118.8k (x0.6)
Test#3 (Generic, ZIP)
97.27k
33.34k (x0.34)
Test#1 (Memory)
13.4k
17.43k (x1.3)
TOTAL
440.54k
237.97k (x0.54)

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
3800X
i7-7700K
Test#1 (Integers)
17.1k
30.47k (x1.78)
Test#2 (FP)
26.59k
26.94k (x1.01)
Test#3 (Generic, ZIP)
8.91k
6.25k (x0.7)
Test#1 (Memory)
23.21k
13.32k (x0.57)
TOTAL
75.81k
76.98k (x1.02)

Multithread

3800X

i7-7700K
Test#1 (Integers)
172.04k
127.81k (x0.74)
Test#2 (FP)
214.03k
123.7k (x0.58)
Test#3 (Generic, ZIP)
97.1k
29.34k (x0.3)
Test#1 (Memory)
14.57k
9.05k (x0.62)
TOTAL
497.74k
289.9k (x0.58)

Performance/W
3800X
i7-7700K
Test#1 (Integers)
1638 points/W
1345 points/W
Test#2 (FP)
2038 points/W
1302 points/W
Test#3 (Generic, ZIP)
925 points/W
309 points/W
Test#1 (Memory)
139 points/W
95 points/W
TOTAL
4740 points/W
3052 points/W

Performance/GHz
3800X
i7-7700K
Test#1 (Integers)
3799 points/GHz
6770 points/GHz
Test#2 (FP)
5909 points/GHz
5987 points/GHz
Test#3 (Generic, ZIP)
1981 points/GHz
1389 points/GHz
Test#1 (Memory)
5158 points/GHz
2960 points/GHz
TOTAL
16847 points/GHz
17106 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