| | | | | | |

Core i7-6900K vs Ryzen 7 3800X


Description
The i7-6900K is based on Broadwell architecture while the 3800X is based on Zen 2.

Using the multithread performance as a reference, the i7-6900K gets a score of 427.5 k points while the 3800X gets 497.7 k points.

Summarizing, the 3800X is 1.2 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406f1
870f10
Core
Broadwell-E
Matisse
Architecture
Base frecuency
3.2 GHz
3.9 GHz
Boost frecuency
3.7 GHz
4.5 GHz
Socket
LGA 2011-3
AM4
Cores/Threads
8/16
8/16
TDP
140 W
105 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x32 kB
Cache L2
8x256 kB
8x512 kB
Cache L3
20480 kB
32768 kB
Date
September 2016
July 2019
Mean monothread perf.
49.76k points
75.81k points
Mean multithread perf.
427.51k points
497.74k 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
i7-6900K
3800X
Test#1 (Integers)
23.11k
17.1k (x0.74)
Test#2 (FP)
17.84k
26.59k (x1.49)
Test#3 (Generic, ZIP)
5.34k
8.91k (x1.67)
Test#1 (Memory)
3.47k
23.21k (x6.69)
TOTAL
49.76k
75.81k (x1.52)

Multithread

i7-6900K

3800X
Test#1 (Integers)
184.19k
172.04k (x0.93)
Test#2 (FP)
181.2k
214.03k (x1.18)
Test#3 (Generic, ZIP)
47.44k
97.1k (x2.05)
Test#1 (Memory)
14.69k
14.57k (x0.99)
TOTAL
427.51k
497.74k (x1.16)

Performance/W
i7-6900K
3800X
Test#1 (Integers)
1316 points/W
1638 points/W
Test#2 (FP)
1294 points/W
2038 points/W
Test#3 (Generic, ZIP)
339 points/W
925 points/W
Test#1 (Memory)
105 points/W
139 points/W
TOTAL
3054 points/W
4740 points/W

Performance/GHz
i7-6900K
3800X
Test#1 (Integers)
6247 points/GHz
3799 points/GHz
Test#2 (FP)
4822 points/GHz
5909 points/GHz
Test#3 (Generic, ZIP)
1444 points/GHz
1981 points/GHz
Test#1 (Memory)
938 points/GHz
5158 points/GHz
TOTAL
13450 points/GHz
16847 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