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Ryzen 7 3700X vs Core i7-6900K


Description
The 3700X is based on Zen 2 architecture while the i7-6900K is based on Broadwell.

Using the multithread performance as a reference, the 3700X gets a score of 491.2 k points while the i7-6900K gets 427.5 k points.

Summarizing, the 3700X is 1.1 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
870f10
406f1
Core
Matisse
Broadwell-E
Architecture
Base frecuency
3.6 GHz
3.2 GHz
Boost frecuency
4.4 GHz
3.7 GHz
Socket
AM4
LGA 2011-3
Cores/Threads
8/16
8/16
TDP
65 W
140 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x32 kB
Cache L2
8x512 kB
8x256 kB
Cache L3
32768 kB
20480 kB
Date
July 2019
September 2016
Mean monothread perf.
74.75k points
49.76k points
Mean multithread perf.
491.15k points
427.51k 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
3700X
i7-6900K
Test#1 (Integers)
16.81k
23.11k (x1.37)
Test#2 (FP)
26.39k
17.84k (x0.68)
Test#3 (Generic, ZIP)
8.82k
5.34k (x0.61)
Test#1 (Memory)
22.73k
3.47k (x0.15)
TOTAL
74.75k
49.76k (x0.67)

Multithread

3700X

i7-6900K
Test#1 (Integers)
170.29k
184.19k (x1.08)
Test#2 (FP)
213.21k
181.2k (x0.85)
Test#3 (Generic, ZIP)
96.03k
47.44k (x0.49)
Test#1 (Memory)
11.62k
14.69k (x1.26)
TOTAL
491.15k
427.51k (x0.87)

Performance/W
3700X
i7-6900K
Test#1 (Integers)
2620 points/W
1316 points/W
Test#2 (FP)
3280 points/W
1294 points/W
Test#3 (Generic, ZIP)
1477 points/W
339 points/W
Test#1 (Memory)
179 points/W
105 points/W
TOTAL
7556 points/W
3054 points/W

Performance/GHz
3700X
i7-6900K
Test#1 (Integers)
3821 points/GHz
6247 points/GHz
Test#2 (FP)
5998 points/GHz
4822 points/GHz
Test#3 (Generic, ZIP)
2005 points/GHz
1444 points/GHz
Test#1 (Memory)
5166 points/GHz
938 points/GHz
TOTAL
16990 points/GHz
13450 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