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Core i7-11700 vs i9-9900K


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

Using the multithread performance as a reference, the i7-11700 gets a score of 729 k points while the i9-9900K gets 529.3 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
a0671
906ed
Core
Rocket Lake-S
Coffee Lake-S
Architecture
Base frecuency
2.5 GHz
3.6 GHz
Boost frecuency
4.9 GHz
5 GHz
Socket
LGA 1200
LGA 1151
Cores/Threads
8/16
8/16
TDP
65 W
95 W
Cache L1 (d+i)
8x32+8x48 kB
8x32+8x32 kB
Cache L2
8x512 kB
8x256 kB
Cache L3
16384 kB
16384 kB
Date
March 2021
October 2018
Mean monothread perf.
98.87k points
81.91k points
Mean multithread perf.
728.98k points
529.32k 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
i7-11700
i9-9900K
Test#1 (Integers)
5.48k
5k (x0.91)
Test#2 (FP)
20.99k
20.22k (x0.96)
Test#3 (Generic, ZIP)
12.58k
6.54k (x0.52)
Test#1 (Memory)
21.24k
13.78k (x0.65)
TOTAL
60.28k
45.53k (x0.76)

Multithread

i7-11700

i9-9900K
Test#1 (Integers)
44.15k
36.39k (x0.82)
Test#2 (FP)
196.6k
166.55k (x0.85)
Test#3 (Generic, ZIP)
102.57k
54.92k (x0.54)
Test#1 (Memory)
10.64k
8.96k (x0.84)
TOTAL
353.96k
266.82k (x0.75)

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
i7-11700
i9-9900K
Test#1 (Integers)
18.05k
18.03k (x1)
Test#2 (FP)
26.13k
25.98k (x0.99)
Test#3 (Generic, ZIP)
13.92k
6.86k (x0.49)
Test#1 (Memory)
21.22k
14.5k (x0.68)
TOTAL
79.32k
65.37k (x0.82)

Multithread

i7-11700

i9-9900K
Test#1 (Integers)
160.49k
131.34k (x0.82)
Test#2 (FP)
225.25k
204.76k (x0.91)
Test#3 (Generic, ZIP)
113.88k
55.74k (x0.49)
Test#1 (Memory)
10.64k
8.99k (x0.84)
TOTAL
510.25k
400.83k (x0.79)

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
i7-11700
i9-9900K
Test#1 (Integers)
18.96k
17.98k (x0.95)
Test#2 (FP)
28.34k
27.04k (x0.95)
Test#3 (Generic, ZIP)
13.26k
6.63k (x0.5)
Test#1 (Memory)
20.2k
13.6k (x0.67)
TOTAL
80.76k
65.24k (x0.81)

Multithread

i7-11700

i9-9900K
Test#1 (Integers)
164.31k
130.88k (x0.8)
Test#2 (FP)
253.96k
208.5k (x0.82)
Test#3 (Generic, ZIP)
115.28k
54.12k (x0.47)
Test#1 (Memory)
10.65k
8.91k (x0.84)
TOTAL
544.2k
402.41k (x0.74)

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
i7-11700
i9-9900K
Test#1 (Integers)
35.12k
32.08k (x0.91)
Test#2 (FP)
29.24k
28.17k (x0.96)
Test#3 (Generic, ZIP)
12.56k
6.68k (x0.53)
Test#1 (Memory)
21.95k
14.98k (x0.68)
TOTAL
98.87k
81.91k (x0.83)

Multithread

i7-11700

i9-9900K
Test#1 (Integers)
304k
242.98k (x0.8)
Test#2 (FP)
304.7k
220.16k (x0.72)
Test#3 (Generic, ZIP)
109.64k
53.97k (x0.49)
Test#1 (Memory)
10.64k
12.22k (x1.15)
TOTAL
728.98k
529.32k (x0.73)

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

Performance/GHz
i7-11700
i9-9900K
Test#1 (Integers)
7168 points/GHz
6417 points/GHz
Test#2 (FP)
5967 points/GHz
5634 points/GHz
Test#3 (Generic, ZIP)
2563 points/GHz
1335 points/GHz
Test#1 (Memory)
4479 points/GHz
2996 points/GHz
TOTAL
20177 points/GHz
16382 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