| | | | | | |

Core i7-11700K vs i7-6900K


Description
The i7-11700K is based on Rocket Lake architecture while the i7-6900K is based on Broadwell.

Using the multithread performance as a reference, the i7-11700K gets a score of 742.2 k points while the i7-6900K gets 427.5 k points.

Summarizing, the i7-11700K is 1.7 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0671
406f1
Core
Rocket Lake-S
Broadwell-E
Architecture
Base frecuency
3.6 GHz
3.2 GHz
Boost frecuency
5 GHz
3.7 GHz
Socket
LGA 1200
LGA 2011-3
Cores/Threads
8/16
8/16
TDP
125 W
140 W
Cache L1 (d+i)
8x32+8x48 kB
8x32+8x32 kB
Cache L2
8x512 kB
8x256 kB
Cache L3
16384 kB
20480 kB
Date
March 2021
September 2016
Mean monothread perf.
99.57k points
49.76k points
Mean multithread perf.
742.15k 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
i7-11700K
i7-6900K
Test#1 (Integers)
36.24k
23.11k (x0.64)
Test#2 (FP)
28.87k
17.84k (x0.62)
Test#3 (Generic, ZIP)
12.76k
5.34k (x0.42)
Test#1 (Memory)
21.7k
3.47k (x0.16)
TOTAL
99.57k
49.76k (x0.5)

Multithread

i7-11700K

i7-6900K
Test#1 (Integers)
315.15k
184.19k (x0.58)
Test#2 (FP)
303.07k
181.2k (x0.6)
Test#3 (Generic, ZIP)
111.09k
47.44k (x0.43)
Test#1 (Memory)
12.85k
14.69k (x1.14)
TOTAL
742.15k
427.51k (x0.58)

Performance/W
i7-11700K
i7-6900K
Test#1 (Integers)
2521 points/W
1316 points/W
Test#2 (FP)
2425 points/W
1294 points/W
Test#3 (Generic, ZIP)
889 points/W
339 points/W
Test#1 (Memory)
103 points/W
105 points/W
TOTAL
5937 points/W
3054 points/W

Performance/GHz
i7-11700K
i7-6900K
Test#1 (Integers)
7247 points/GHz
6247 points/GHz
Test#2 (FP)
5775 points/GHz
4822 points/GHz
Test#3 (Generic, ZIP)
2551 points/GHz
1444 points/GHz
Test#1 (Memory)
4341 points/GHz
938 points/GHz
TOTAL
19914 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