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Core i9-9900K vs i7-11700


Description
The i9-9900K is based on Coffee Lake architecture while the i7-11700 is based on Rocket Lake.

Using the multithread performance as a reference, the i9-9900K gets a score of 529.3 k points while the i7-11700 gets 729 k points.

Summarizing, the i7-11700 is 1.4 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
a0671
Core
Coffee Lake-S
Rocket Lake-S
Architecture
Base frecuency
3.6 GHz
2.5 GHz
Boost frecuency
5 GHz
4.9 GHz
Socket
LGA 1151
LGA 1200
Cores/Threads
8/16
8/16
TDP
95 W
65 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x48 kB
Cache L2
8x256 kB
8x512 kB
Cache L3
16384 kB
16384 kB
Date
October 2018
March 2021
Mean monothread perf.
81.91k points
98.87k points
Mean multithread perf.
529.32k 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
i9-9900K
i7-11700
Test#1 (Integers)
5k
5.48k (x1.1)
Test#2 (FP)
20.22k
20.99k (x1.04)
Test#3 (Generic, ZIP)
6.54k
12.58k (x1.92)
Test#1 (Memory)
13.78k
21.24k (x1.54)
TOTAL
45.53k
60.28k (x1.32)

Multithread

i9-9900K

i7-11700
Test#1 (Integers)
36.39k
44.15k (x1.21)
Test#2 (FP)
166.55k
196.6k (x1.18)
Test#3 (Generic, ZIP)
54.92k
102.57k (x1.87)
Test#1 (Memory)
8.96k
10.64k (x1.19)
TOTAL
266.82k
353.96k (x1.33)

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
i9-9900K
i7-11700
Test#1 (Integers)
18.03k
18.05k (x1)
Test#2 (FP)
25.98k
26.13k (x1.01)
Test#3 (Generic, ZIP)
6.86k
13.92k (x2.03)
Test#1 (Memory)
14.5k
21.22k (x1.46)
TOTAL
65.37k
79.32k (x1.21)

Multithread

i9-9900K

i7-11700
Test#1 (Integers)
131.34k
160.49k (x1.22)
Test#2 (FP)
204.76k
225.25k (x1.1)
Test#3 (Generic, ZIP)
55.74k
113.88k (x2.04)
Test#1 (Memory)
8.99k
10.64k (x1.18)
TOTAL
400.83k
510.25k (x1.27)

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
i9-9900K
i7-11700
Test#1 (Integers)
17.98k
18.96k (x1.05)
Test#2 (FP)
27.04k
28.34k (x1.05)
Test#3 (Generic, ZIP)
6.63k
13.26k (x2)
Test#1 (Memory)
13.6k
20.2k (x1.49)
TOTAL
65.24k
80.76k (x1.24)

Multithread

i9-9900K

i7-11700
Test#1 (Integers)
130.88k
164.31k (x1.26)
Test#2 (FP)
208.5k
253.96k (x1.22)
Test#3 (Generic, ZIP)
54.12k
115.28k (x2.13)
Test#1 (Memory)
8.91k
10.65k (x1.2)
TOTAL
402.41k
544.2k (x1.35)

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
i9-9900K
i7-11700
Test#1 (Integers)
32.08k
35.12k (x1.09)
Test#2 (FP)
28.17k
29.24k (x1.04)
Test#3 (Generic, ZIP)
6.68k
12.56k (x1.88)
Test#1 (Memory)
14.98k
21.95k (x1.47)
TOTAL
81.91k
98.87k (x1.21)

Multithread

i9-9900K

i7-11700
Test#1 (Integers)
242.98k
304k (x1.25)
Test#2 (FP)
220.16k
304.7k (x1.38)
Test#3 (Generic, ZIP)
53.97k
109.64k (x2.03)
Test#1 (Memory)
12.22k
10.64k (x0.87)
TOTAL
529.32k
728.98k (x1.38)

Performance/W
i9-9900K
i7-11700
Test#1 (Integers)
2558 points/W
4677 points/W
Test#2 (FP)
2317 points/W
4688 points/W
Test#3 (Generic, ZIP)
568 points/W
1687 points/W
Test#1 (Memory)
129 points/W
164 points/W
TOTAL
5572 points/W
11215 points/W

Performance/GHz
i9-9900K
i7-11700
Test#1 (Integers)
6417 points/GHz
7168 points/GHz
Test#2 (FP)
5634 points/GHz
5967 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
2563 points/GHz
Test#1 (Memory)
2996 points/GHz
4479 points/GHz
TOTAL
16382 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