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Core i7-1280P vs i7-8700k


Description
The i7-1280P is based on Alder Lake architecture while the i7-8700k is based on Coffee Lake.

Using the multithread performance as a reference, the i7-1280P gets a score of 468.3 k points while the i7-8700k gets 443.8 k points.

Summarizing, the i7-1280P is 1.1 times faster than the i7-8700k. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a3
906ea
Core
Alder Lake-P
Coffee Lake-S
Architecture
Base frecuency
1.3 GHz
3.7 GHz
Boost frecuency
4.8 GHz
4.7 GHz
Socket
BGA 1744
LGA 1151
Cores/Threads
14/20
6/12
TDP
28 W
95 W
Cache L1 (d+i)
6x32/8x64+6x48/8x32 kB
6x32+6x32 kB
Cache L2
6x1280+6x2048 kB
6x256 kB
Cache L3
24576 kB
12288 kB
Date
April 2022
October 2017
Mean monothread perf.
91.45k points
80.6k points
Mean multithread perf.
468.3k points
443.77k 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
i7-1280P
i7-8700k
Test#1 (Integers)
6.94k
4.13k (x0.59)
Test#2 (FP)
18.46k
16.96k (x0.92)
Test#3 (Generic, ZIP)
11.27k
5.56k (x0.49)
Test#1 (Memory)
13.6k
12.85k (x0.94)
TOTAL
50.27k
39.5k (x0.79)

Multithread

i7-1280P

i7-8700k
Test#1 (Integers)
44.01k
24.01k (x0.55)
Test#2 (FP)
125.05k
108.69k (x0.87)
Test#3 (Generic, ZIP)
76.28k
36.62k (x0.48)
Test#1 (Memory)
15.52k
9.33k (x0.6)
TOTAL
260.85k
178.64k (x0.68)

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
i7-1280P
i7-8700k
Test#1 (Integers)
22.72k
12.92k (x0.57)
Test#2 (FP)
23.88k
20.68k (x0.87)
Test#3 (Generic, ZIP)
12.75k
5.3k (x0.42)
Test#1 (Memory)
13.71k
12.59k (x0.92)
TOTAL
73.05k
51.48k (x0.7)

Multithread

i7-1280P

i7-8700k
Test#1 (Integers)
151.95k
94.26k (x0.62)
Test#2 (FP)
160.95k
152.55k (x0.95)
Test#3 (Generic, ZIP)
84.9k
39.74k (x0.47)
Test#1 (Memory)
15.91k
8.53k (x0.54)
TOTAL
413.72k
295.07k (x0.71)

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
i7-1280P
i7-8700k
Test#1 (Integers)
22.76k
16.87k (x0.74)
Test#2 (FP)
25.2k
26.12k (x1.04)
Test#3 (Generic, ZIP)
12.64k
6.33k (x0.5)
Test#1 (Memory)
13.33k
13.71k (x1.03)
TOTAL
73.92k
63.03k (x0.85)

Multithread

i7-1280P

i7-8700k
Test#1 (Integers)
149.83k
105.74k (x0.71)
Test#2 (FP)
170.43k
180.52k (x1.06)
Test#3 (Generic, ZIP)
83.32k
44.99k (x0.54)
Test#1 (Memory)
15.67k
8.51k (x0.54)
TOTAL
419.25k
339.77k (x0.81)

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
i7-1280P
i7-8700k
Test#1 (Integers)
39.78k
31.2k (x0.78)
Test#2 (FP)
26.06k
27.82k (x1.07)
Test#3 (Generic, ZIP)
12.44k
6.57k (x0.53)
Test#1 (Memory)
13.17k
15k (x1.14)
TOTAL
91.45k
80.6k (x0.88)

Multithread

i7-1280P

i7-8700k
Test#1 (Integers)
209.96k
202.42k (x0.96)
Test#2 (FP)
170.21k
186.33k (x1.09)
Test#3 (Generic, ZIP)
72.04k
44.96k (x0.62)
Test#1 (Memory)
16.09k
10.05k (x0.62)
TOTAL
468.3k
443.77k (x0.95)

Performance/W
i7-1280P
i7-8700k
Test#1 (Integers)
7499 points/W
2131 points/W
Test#2 (FP)
6079 points/W
1961 points/W
Test#3 (Generic, ZIP)
2573 points/W
473 points/W
Test#1 (Memory)
575 points/W
106 points/W
TOTAL
16725 points/W
4671 points/W

Performance/GHz
i7-1280P
i7-8700k
Test#1 (Integers)
8287 points/GHz
6639 points/GHz
Test#2 (FP)
5429 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
2592 points/GHz
1397 points/GHz
Test#1 (Memory)
2744 points/GHz
3192 points/GHz
TOTAL
19051 points/GHz
17148 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