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Core i9-9900K vs Xeon E5-2620


Description
The i9-9900K is based on Coffee Lake architecture while the E5-2620 is based on Sandy Bridge.

Using the multithread performance as a reference, the i9-9900K gets a score of 402.4 k points while the E5-2620 gets 224.7 k points.

Summarizing, the i9-9900K is 1.8 times faster than the E5-2620. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
206d7
Core
Coffee Lake-S
Sandy Bridge-EP
Architecture
Base frecuency
3.6 GHz
2 GHz
Boost frecuency
5 GHz
2.5 GHz
Socket
LGA 1151
LGA 2011
Cores/Threads
8/16
6/12
TDP
95 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
6x32+6x32 kB
Cache L2
8x256 kB
6x256 kB
Cache L3
16384 kB
15360 kB
Date
October 2018
March 2012
Mean monothread perf.
81.91k points
18.8k points
Mean multithread perf.
529.32k points
224.7k points

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
E5-2620
Test#1 (Integers)
17.98k
6.95k (x0.39)
Test#2 (FP)
27.04k
6.24k (x0.23)
Test#3 (Generic, ZIP)
6.63k
3.05k (x0.46)
Test#1 (Memory)
13.6k
2.56k (x0.19)
TOTAL
65.24k
18.8k (x0.29)

Multithread

i9-9900K

E5-2620
Test#1 (Integers)
130.88k
90.01k (x0.69)
Test#2 (FP)
208.5k
82.43k (x0.4)
Test#3 (Generic, ZIP)
54.12k
42.59k (x0.79)
Test#1 (Memory)
8.91k
9.66k (x1.08)
TOTAL
402.41k
224.7k (x0.56)

Performance/W
i9-9900K
E5-2620
Test#1 (Integers)
1378 points/W
948 points/W
Test#2 (FP)
2195 points/W
868 points/W
Test#3 (Generic, ZIP)
570 points/W
448 points/W
Test#1 (Memory)
94 points/W
102 points/W
TOTAL
4236 points/W
2365 points/W

Performance/GHz
i9-9900K
E5-2620
Test#1 (Integers)
3596 points/GHz
2780 points/GHz
Test#2 (FP)
5408 points/GHz
2494 points/GHz
Test#3 (Generic, ZIP)
1325 points/GHz
1220 points/GHz
Test#1 (Memory)
2720 points/GHz
1024 points/GHz
TOTAL
13049 points/GHz
7519 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