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Core i9-9900K vs i7-1280P


Description
The i9-9900K is based on Coffee Lake architecture while the i7-1280P 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 i7-1280P gets 468.3 k points.

Summarizing, the i9-9900K is 1.1 times faster than the i7-1280P. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
906a3
Core
Coffee Lake-S
Alder Lake-P
Architecture
Base frecuency
3.6 GHz
1.3 GHz
Boost frecuency
5 GHz
4.8 GHz
Socket
LGA 1151
BGA 1744
Cores/Threads
8/16
14/20
TDP
95 W
28 W
Cache L1 (d+i)
8x32+8x32 kB
6x32/8x64+6x48/8x32 kB
Cache L2
8x256 kB
6x1280+6x2048 kB
Cache L3
16384 kB
24576 kB
Date
October 2018
April 2022
Mean monothread perf.
81.91k points
91.45k points
Mean multithread perf.
529.32k points
468.3k 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
i7-1280P
Test#1 (Integers)
5k
6.94k (x1.39)
Test#2 (FP)
20.22k
18.46k (x0.91)
Test#3 (Generic, ZIP)
6.54k
11.27k (x1.72)
Test#1 (Memory)
13.78k
13.6k (x0.99)
TOTAL
45.53k
50.27k (x1.1)

Multithread

i9-9900K

i7-1280P
Test#1 (Integers)
36.39k
44.01k (x1.21)
Test#2 (FP)
166.55k
125.05k (x0.75)
Test#3 (Generic, ZIP)
54.92k
76.28k (x1.39)
Test#1 (Memory)
8.96k
15.52k (x1.73)
TOTAL
266.82k
260.85k (x0.98)

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
i9-9900K
i7-1280P
Test#1 (Integers)
18.03k
22.72k (x1.26)
Test#2 (FP)
25.98k
23.88k (x0.92)
Test#3 (Generic, ZIP)
6.86k
12.75k (x1.86)
Test#1 (Memory)
14.5k
13.71k (x0.95)
TOTAL
65.37k
73.05k (x1.12)

Multithread

i9-9900K

i7-1280P
Test#1 (Integers)
131.34k
151.95k (x1.16)
Test#2 (FP)
204.76k
160.95k (x0.79)
Test#3 (Generic, ZIP)
55.74k
84.9k (x1.52)
Test#1 (Memory)
8.99k
15.91k (x1.77)
TOTAL
400.83k
413.72k (x1.03)

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
i7-1280P
Test#1 (Integers)
17.98k
22.76k (x1.27)
Test#2 (FP)
27.04k
25.2k (x0.93)
Test#3 (Generic, ZIP)
6.63k
12.64k (x1.91)
Test#1 (Memory)
13.6k
13.33k (x0.98)
TOTAL
65.24k
73.92k (x1.13)

Multithread

i9-9900K

i7-1280P
Test#1 (Integers)
130.88k
149.83k (x1.14)
Test#2 (FP)
208.5k
170.43k (x0.82)
Test#3 (Generic, ZIP)
54.12k
83.32k (x1.54)
Test#1 (Memory)
8.91k
15.67k (x1.76)
TOTAL
402.41k
419.25k (x1.04)

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
i7-1280P
Test#1 (Integers)
32.08k
39.78k (x1.24)
Test#2 (FP)
28.17k
26.06k (x0.93)
Test#3 (Generic, ZIP)
6.68k
12.44k (x1.86)
Test#1 (Memory)
14.98k
13.17k (x0.88)
TOTAL
81.91k
91.45k (x1.12)

Multithread

i9-9900K

i7-1280P
Test#1 (Integers)
242.98k
209.96k (x0.86)
Test#2 (FP)
220.16k
170.21k (x0.77)
Test#3 (Generic, ZIP)
53.97k
72.04k (x1.33)
Test#1 (Memory)
12.22k
16.09k (x1.32)
TOTAL
529.32k
468.3k (x0.88)

Performance/W
i9-9900K
i7-1280P
Test#1 (Integers)
2558 points/W
7499 points/W
Test#2 (FP)
2317 points/W
6079 points/W
Test#3 (Generic, ZIP)
568 points/W
2573 points/W
Test#1 (Memory)
129 points/W
575 points/W
TOTAL
5572 points/W
16725 points/W

Performance/GHz
i9-9900K
i7-1280P
Test#1 (Integers)
6417 points/GHz
8287 points/GHz
Test#2 (FP)
5634 points/GHz
5429 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
2592 points/GHz
Test#1 (Memory)
2996 points/GHz
2744 points/GHz
TOTAL
16382 points/GHz
19051 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