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Core i7-6900K vs i7-1280P


Description
The i7-6900K is based on Broadwell architecture while the i7-1280P is based on Alder Lake.

Using the multithread performance as a reference, the i7-6900K gets a score of 427.5 k points while the i7-1280P gets 468.3 k points.

Summarizing, the i7-1280P is 1.1 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406f1
906a3
Core
Broadwell-E
Alder Lake-P
Architecture
Base frecuency
3.2 GHz
1.3 GHz
Boost frecuency
3.7 GHz
4.8 GHz
Socket
LGA 2011-3
BGA 1744
Cores/Threads
8/16
14/20
TDP
140 W
28 W
Cache L1 (d+i)
8x32+8x32 kB
6x32/8x64+6x48/8x32 kB
Cache L2
8x256 kB
6x1280+6x2048 kB
Cache L3
20480 kB
24576 kB
Date
September 2016
April 2022
Mean monothread perf.
49.76k points
91.45k points
Mean multithread perf.
427.51k points
468.3k points

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
i7-6900K
i7-1280P
Test#1 (Integers)
23.11k
39.78k (x1.72)
Test#2 (FP)
17.84k
26.06k (x1.46)
Test#3 (Generic, ZIP)
5.34k
12.44k (x2.33)
Test#1 (Memory)
3.47k
13.17k (x3.8)
TOTAL
49.76k
91.45k (x1.84)

Multithread

i7-6900K

i7-1280P
Test#1 (Integers)
184.19k
209.96k (x1.14)
Test#2 (FP)
181.2k
170.21k (x0.94)
Test#3 (Generic, ZIP)
47.44k
72.04k (x1.52)
Test#1 (Memory)
14.69k
16.09k (x1.1)
TOTAL
427.51k
468.3k (x1.1)

Performance/W
i7-6900K
i7-1280P
Test#1 (Integers)
1316 points/W
7499 points/W
Test#2 (FP)
1294 points/W
6079 points/W
Test#3 (Generic, ZIP)
339 points/W
2573 points/W
Test#1 (Memory)
105 points/W
575 points/W
TOTAL
3054 points/W
16725 points/W

Performance/GHz
i7-6900K
i7-1280P
Test#1 (Integers)
6247 points/GHz
8287 points/GHz
Test#2 (FP)
4822 points/GHz
5429 points/GHz
Test#3 (Generic, ZIP)
1444 points/GHz
2592 points/GHz
Test#1 (Memory)
938 points/GHz
2744 points/GHz
TOTAL
13450 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