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Core i7-8700k vs i7-11700


Description
The i7-8700k is based on Coffee Lake architecture while the i7-11700 is based on Rocket Lake.

Using the multithread performance as a reference, the i7-8700k gets a score of 443.8 k points while the i7-11700 gets 729 k points.

Summarizing, the i7-11700 is 1.6 times faster than the i7-8700k. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
a0671
Core
Coffee Lake-S
Rocket Lake-S
Architecture
Base frecuency
3.7 GHz
2.5 GHz
Boost frecuency
4.7 GHz
4.9 GHz
Socket
LGA 1151
LGA 1200
Cores/Threads
6/12
8/16
TDP
95 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
8x32+8x48 kB
Cache L2
6x256 kB
8x512 kB
Cache L3
12288 kB
16384 kB
Date
October 2017
March 2021
Mean monothread perf.
80.6k points
98.87k points
Mean multithread perf.
443.77k points
728.98k 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
i7-8700k
i7-11700
Test#1 (Integers)
4.13k
5.48k (x1.33)
Test#2 (FP)
16.96k
20.99k (x1.24)
Test#3 (Generic, ZIP)
5.56k
12.58k (x2.26)
Test#1 (Memory)
12.85k
21.24k (x1.65)
TOTAL
39.5k
60.28k (x1.53)

Multithread

i7-8700k

i7-11700
Test#1 (Integers)
24.01k
44.15k (x1.84)
Test#2 (FP)
108.69k
196.6k (x1.81)
Test#3 (Generic, ZIP)
36.62k
102.57k (x2.8)
Test#1 (Memory)
9.33k
10.64k (x1.14)
TOTAL
178.64k
353.96k (x1.98)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-8700k
i7-11700
Test#1 (Integers)
12.92k
18.05k (x1.4)
Test#2 (FP)
20.68k
26.13k (x1.26)
Test#3 (Generic, ZIP)
5.3k
13.92k (x2.63)
Test#1 (Memory)
12.59k
21.22k (x1.69)
TOTAL
51.48k
79.32k (x1.54)

Multithread

i7-8700k

i7-11700
Test#1 (Integers)
94.26k
160.49k (x1.7)
Test#2 (FP)
152.55k
225.25k (x1.48)
Test#3 (Generic, ZIP)
39.74k
113.88k (x2.87)
Test#1 (Memory)
8.53k
10.64k (x1.25)
TOTAL
295.07k
510.25k (x1.73)

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
i7-8700k
i7-11700
Test#1 (Integers)
16.87k
18.96k (x1.12)
Test#2 (FP)
26.12k
28.34k (x1.09)
Test#3 (Generic, ZIP)
6.33k
13.26k (x2.1)
Test#1 (Memory)
13.71k
20.2k (x1.47)
TOTAL
63.03k
80.76k (x1.28)

Multithread

i7-8700k

i7-11700
Test#1 (Integers)
105.74k
164.31k (x1.55)
Test#2 (FP)
180.52k
253.96k (x1.41)
Test#3 (Generic, ZIP)
44.99k
115.28k (x2.56)
Test#1 (Memory)
8.51k
10.65k (x1.25)
TOTAL
339.77k
544.2k (x1.6)

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
i7-8700k
i7-11700
Test#1 (Integers)
31.2k
35.12k (x1.13)
Test#2 (FP)
27.82k
29.24k (x1.05)
Test#3 (Generic, ZIP)
6.57k
12.56k (x1.91)
Test#1 (Memory)
15k
21.95k (x1.46)
TOTAL
80.6k
98.87k (x1.23)

Multithread

i7-8700k

i7-11700
Test#1 (Integers)
202.42k
304k (x1.5)
Test#2 (FP)
186.33k
304.7k (x1.64)
Test#3 (Generic, ZIP)
44.96k
109.64k (x2.44)
Test#1 (Memory)
10.05k
10.64k (x1.06)
TOTAL
443.77k
728.98k (x1.64)

Performance/W
i7-8700k
i7-11700
Test#1 (Integers)
2131 points/W
4677 points/W
Test#2 (FP)
1961 points/W
4688 points/W
Test#3 (Generic, ZIP)
473 points/W
1687 points/W
Test#1 (Memory)
106 points/W
164 points/W
TOTAL
4671 points/W
11215 points/W

Performance/GHz
i7-8700k
i7-11700
Test#1 (Integers)
6639 points/GHz
7168 points/GHz
Test#2 (FP)
5919 points/GHz
5967 points/GHz
Test#3 (Generic, ZIP)
1397 points/GHz
2563 points/GHz
Test#1 (Memory)
3192 points/GHz
4479 points/GHz
TOTAL
17148 points/GHz
20177 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