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Xeon Silver 4208 vs Core i7-6820HQ


Description
The Silver 4208 is based on Cascade Lake architecture while the i7-6820HQ is based on Skylake.

Using the multithread performance as a reference, the Silver 4208 gets a score of 311.6 k points while the i7-6820HQ gets 205.9 k points.

Summarizing, the Silver 4208 is 1.5 times faster than the i7-6820HQ. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
50657
506e3
Core
Cascade Lake-SP
Skylake-H
Architecture
Base frecuency
2.1 GHz
2.7 GHz
Boost frecuency
3.2 GHz
3.6 GHz
Socket
LGA 3647
BGA1440
Cores/Threads
8/16
4/8
TDP
85 W
45 W
Cache L1 (d+i)
8x32+8x32 kB
4x32+4x32 kB
Cache L2
8x1024 kB
4x256 kB
Cache L3
11264 kB
8192 kB
Date
April 2019
October 2015
Mean monothread perf.
38.61k points
50.1k points
Mean multithread perf.
311.57k points
205.89k 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
Silver 4208
i7-6820HQ
Test#1 (Integers)
2.59k
3.18k (x1.23)
Test#2 (FP)
9.5k
13.02k (x1.37)
Test#3 (Generic, ZIP)
3.15k
4.17k (x1.32)
Test#1 (Memory)
5.9k
6.93k (x1.18)
TOTAL
21.13k
27.3k (x1.29)

Multithread

Silver 4208

i7-6820HQ
Test#1 (Integers)
21.09k
13.26k (x0.63)
Test#2 (FP)
80.93k
62.23k (x0.77)
Test#3 (Generic, ZIP)
30.76k
20.34k (x0.66)
Test#1 (Memory)
8.51k
5.46k (x0.64)
TOTAL
141.3k
101.29k (x0.72)

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
Silver 4208
i7-6820HQ
Test#1 (Integers)
16.86k
20.99k (x1.24)
Test#2 (FP)
12.08k
18.63k (x1.54)
Test#3 (Generic, ZIP)
3.37k
4.33k (x1.29)
Test#1 (Memory)
6.29k
6.15k (x0.98)
TOTAL
38.61k
50.1k (x1.3)

Multithread

Silver 4208

i7-6820HQ
Test#1 (Integers)
150.99k
91.8k (x0.61)
Test#2 (FP)
118.54k
87.24k (x0.74)
Test#3 (Generic, ZIP)
33.44k
20.55k (x0.61)
Test#1 (Memory)
8.6k
6.3k (x0.73)
TOTAL
311.57k
205.89k (x0.66)

Performance/W
Silver 4208
i7-6820HQ
Test#1 (Integers)
1776 points/W
2040 points/W
Test#2 (FP)
1395 points/W
1939 points/W
Test#3 (Generic, ZIP)
393 points/W
457 points/W
Test#1 (Memory)
101 points/W
140 points/W
TOTAL
3666 points/W
4575 points/W

Performance/GHz
Silver 4208
i7-6820HQ
Test#1 (Integers)
5269 points/GHz
5831 points/GHz
Test#2 (FP)
3776 points/GHz
5174 points/GHz
Test#3 (Generic, ZIP)
1054 points/GHz
1204 points/GHz
Test#1 (Memory)
1966 points/GHz
1708 points/GHz
TOTAL
12065 points/GHz
13917 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