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Core i9-9900K vs i5-1235U


Description
The i9-9900K is based on Coffee Lake architecture while the i5-1235U is based on Alder Lake.

Using the multithread performance as a reference, the i9-9900K gets a score of 529.3 k points while the i5-1235U gets 297.5 k points.

Summarizing, the i9-9900K is 1.8 times faster than the i5-1235U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
906a4
Core
Coffee Lake-S
Alder Lake-U
Architecture
Base frecuency
3.6 GHz
3.3 GHz
Boost frecuency
5 GHz
4.4 GHz
Socket
LGA 1151
BGA 1700
Cores/Threads
8/16
10/12
TDP
95 W
15 W
Cache L1 (d+i)
8x32+8x32 kB
2x32/8x64+2x48/8x32 kB
Cache L2
8x256 kB
1x1280+4x2048 kB
Cache L3
16384 kB
12288 kB
Date
October 2018
April 2022
Mean monothread perf.
81.91k points
81.64k points
Mean multithread perf.
529.32k points
297.46k 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
i5-1235U
Test#1 (Integers)
5k
7.33k (x1.47)
Test#2 (FP)
20.22k
18.27k (x0.9)
Test#3 (Generic, ZIP)
6.54k
12.8k (x1.96)
Test#1 (Memory)
13.78k
13.2k (x0.96)
TOTAL
45.53k
51.61k (x1.13)

Multithread

i9-9900K

i5-1235U
Test#1 (Integers)
36.39k
29.24k (x0.8)
Test#2 (FP)
166.55k
83.32k (x0.5)
Test#3 (Generic, ZIP)
54.92k
54.53k (x0.99)
Test#1 (Memory)
8.96k
4.99k (x0.56)
TOTAL
266.82k
172.07k (x0.64)

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
i5-1235U
Test#1 (Integers)
18.03k
23.53k (x1.3)
Test#2 (FP)
25.98k
23.51k (x0.91)
Test#3 (Generic, ZIP)
6.86k
14.71k (x2.14)
Test#1 (Memory)
14.5k
13.24k (x0.91)
TOTAL
65.37k
74.99k (x1.15)

Multithread

i9-9900K

i5-1235U
Test#1 (Integers)
131.34k
106.07k (x0.81)
Test#2 (FP)
204.76k
115.88k (x0.57)
Test#3 (Generic, ZIP)
55.74k
60.53k (x1.09)
Test#1 (Memory)
8.99k
5.88k (x0.65)
TOTAL
400.83k
288.36k (x0.72)

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
i5-1235U
Test#1 (Integers)
17.98k
23.03k (x1.28)
Test#2 (FP)
27.04k
24.11k (x0.89)
Test#3 (Generic, ZIP)
6.63k
13.9k (x2.1)
Test#1 (Memory)
13.6k
12.11k (x0.89)
TOTAL
65.24k
73.15k (x1.12)

Multithread

i9-9900K

i5-1235U
Test#1 (Integers)
130.88k
111.78k (x0.85)
Test#2 (FP)
208.5k
124.18k (x0.6)
Test#3 (Generic, ZIP)
54.12k
59.87k (x1.11)
Test#1 (Memory)
8.91k
5.76k (x0.65)
TOTAL
402.41k
301.58k (x0.75)

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
i5-1235U
Test#1 (Integers)
32.08k
36.73k (x1.14)
Test#2 (FP)
28.17k
22.09k (x0.78)
Test#3 (Generic, ZIP)
6.68k
11.24k (x1.68)
Test#1 (Memory)
14.98k
11.58k (x0.77)
TOTAL
81.91k
81.64k (x1)

Multithread

i9-9900K

i5-1235U
Test#1 (Integers)
242.98k
130.18k (x0.54)
Test#2 (FP)
220.16k
110.21k (x0.5)
Test#3 (Generic, ZIP)
53.97k
50.76k (x0.94)
Test#1 (Memory)
12.22k
6.31k (x0.52)
TOTAL
529.32k
297.46k (x0.56)

Performance/W
i9-9900K
i5-1235U
Test#1 (Integers)
2558 points/W
8679 points/W
Test#2 (FP)
2317 points/W
7348 points/W
Test#3 (Generic, ZIP)
568 points/W
3384 points/W
Test#1 (Memory)
129 points/W
421 points/W
TOTAL
5572 points/W
19831 points/W

Performance/GHz
i9-9900K
i5-1235U
Test#1 (Integers)
6417 points/GHz
8349 points/GHz
Test#2 (FP)
5634 points/GHz
5020 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
2555 points/GHz
Test#1 (Memory)
2996 points/GHz
2631 points/GHz
TOTAL
16382 points/GHz
18555 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