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Core i9-11900KB vs Engineering Sample 906EC


Description
The i9-11900KB is based on Tiger Lake architecture while the 906EC is based on Coffee Lake.

Using the multithread performance as a reference, the i9-11900KB gets a score of 537.2 k points while the 906EC gets 494.2 k points.

Summarizing, the i9-11900KB is 1.1 times faster than the 906EC. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806d1
906ec
Core
Tiger Lake-H
Coffee Lake-S
Architecture
Base frecuency
3.3 GHz
2.1 GHz
Boost frecuency
4.9 GHz
4.3 GHz
Socket
BGA 1787
LGA 1151
Cores/Threads
8/16
8/16
TDP
65 W
- W
Cache L1 (d+i)
8x32+8x48 kB
8x32+8x32 kB
Cache L2
8x1280 kB
8x256 kB
Cache L3
24576 kB
16384 kB
Date
July 2021
January 2019
Mean monothread perf.
63.79k points
70.55k points
Mean multithread perf.
537.18k points
494.24k 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
i9-11900KB
906EC
Test#1 (Integers)
24.09k
28.3k (x1.17)
Test#2 (FP)
19.54k
24.99k (x1.28)
Test#3 (Generic, ZIP)
8.48k
5.55k (x0.66)
Test#1 (Memory)
11.68k
11.71k (x1)
TOTAL
63.79k
70.55k (x1.11)

Multithread

i9-11900KB

906EC
Test#1 (Integers)
220.79k
229.27k (x1.04)
Test#2 (FP)
225.98k
209.21k (x0.93)
Test#3 (Generic, ZIP)
79.1k
48.53k (x0.61)
Test#1 (Memory)
11.32k
7.23k (x0.64)
TOTAL
537.18k
494.24k (x0.92)

Performance/W
i9-11900KB
906EC
Test#1 (Integers)
3397 points/W