Core i9-11900K vs i7-8700k
Description
The i9-11900K is based on Rocket Lake architecture while the i7-8700k is based on Coffee Lake.
Using the multithread performance as a reference, the i9-11900K gets a score of 748 k points while the i7-8700k gets 443.8 k points.
Summarizing, the i9-11900K is 1.7 times faster than the i7-8700k. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i9-11900K gets a score of 748 k points while the i7-8700k gets 443.8 k points.
Summarizing, the i9-11900K is 1.7 times faster than the i7-8700k. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
a0671
906ea
Core
Rocket Lake-S
Coffee Lake-S
Base frecuency
3.5 GHz
3.7 GHz
Boost frecuency
5.3 GHz
4.7 GHz
Socket
LGA 1200
LGA 1151
Cores/Threads
8/16
6/12
TDP
125 W
95 W
Cache L1 (d+i)
8x32+8x48 kB
6x32+6x32 kB
Cache L2
8x512 kB
6x256 kB
Cache L3
16386 kB
12288 kB
Date
March 2021
October 2017
Mean monothread perf.
101.11k points
80.6k points
Mean multithread perf.
748.02k points
443.77k 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
i9-11900K
i7-8700k
Test#1 (Integers)
36.08k
31.2k (x0.86)
Test#2 (FP)
30.19k
27.82k (x0.92)
Test#3 (Generic, ZIP)
12.96k
6.57k (x0.51)
Test#1 (Memory)
21.88k
15k (x0.69)
TOTAL
101.11k
80.6k (x0.8)
Multithread
i9-11900K
i7-8700k
Test#1 (Integers)
311.76k
202.42k (x0.65)
Test#2 (FP)
314.01k
186.33k (x0.59)
Test#3 (Generic, ZIP)
112.23k
44.96k (x0.4)
Test#1 (Memory)
10.02k
10.05k (x1)
TOTAL
748.02k
443.77k (x0.59)
Performance/W
i9-11900K
i7-8700k
Test#1 (Integers)
2494 points/W
2131 points/W
Test#2 (FP)
2512 points/W
1961 points/W
Test#3 (Generic, ZIP)
898 points/W
473 points/W
Test#1 (Memory)
80 points/W
106 points/W
TOTAL
5984 points/W
4671 points/W
Performance/GHz
i9-11900K
i7-8700k
Test#1 (Integers)
6807 points/GHz
6639 points/GHz
Test#2 (FP)
5695 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
2446 points/GHz
1397 points/GHz
Test#1 (Memory)
4129 points/GHz
3192 points/GHz
TOTAL
19077 points/GHz
17148 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4