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Xeon E5-2620 v4 vs Core i7-720QM


Description
The E5-2620 v4 is based on Broadwell architecture while the i7-720QM is based on Nehalem.

Using the multithread performance as a reference, the E5-2620 v4 gets a score of 182.4 k points while the i7-720QM gets 38.8 k points.

Summarizing, the E5-2620 v4 is 4.7 times faster than the i7-720QM. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406f1
106e5
Core
Broadwell-EP
Clarksfield
Architecture
Base frecuency
2.1 GHz
1.6 GHz
Boost frecuency
3 GHz
2.8 GHz
Socket
Socket 2011-3
988-pin micro-FCPGA8
Cores/Threads
8/16
4/8
TDP
85 W
45 W
Cache L1 (d+i)
8x32+8x32 kB
4x32+4x32 kB
Cache L2
8x256 kB
4x256 kB
Cache L3
20480 kB
6144 kB
Date
March 2016
September 2009
Mean monothread perf.
29.39k points
13.13k points
Mean multithread perf.
237.83k points
38.78k 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
E5-2620 v4
i7-720QM
Test#1 (Integers)
2.6k
1.49k (x0.57)
Test#2 (FP)
7.55k
3.4k (x0.45)
Test#3 (Generic, ZIP)
2.61k
1.95k (x0.75)
Test#1 (Memory)
2.03k
2.08k (x1.03)
TOTAL
14.79k
8.92k (x0.6)

Multithread

E5-2620 v4

i7-720QM
Test#1 (Integers)
17.41k
4.23k (x0.24)
Test#2 (FP)
75.46k
11.4k (x0.15)
Test#3 (Generic, ZIP)
26.25k
7.17k (x0.27)
Test#1 (Memory)
4.65k
4.51k (x0.97)
TOTAL
123.78k
27.32k (x0.22)

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
E5-2620 v4
i7-720QM
Test#1 (Integers)
8.22k
5.49k (x0.67)
Test#2 (FP)
12.06k
3.55k (x0.29)
Test#3 (Generic, ZIP)
4.01k
2.01k (x0.5)
Test#1 (Memory)
2.89k
2.09k (x0.72)
TOTAL
27.18k
13.13k (x0.48)

Multithread

E5-2620 v4

i7-720QM
Test#1 (Integers)
61.34k
15.06k (x0.25)
Test#2 (FP)
90.21k
12.15k (x0.13)
Test#3 (Generic, ZIP)
26.2k
7.18k (x0.27)
Test#1 (Memory)
4.62k
4.39k (x0.95)
TOTAL
182.37k
38.78k (x0.21)

Performance/W
E5-2620 v4
i7-720QM
Test#1 (Integers)
722 points/W
335 points/W
Test#2 (FP)
1061 points/W
270 points/W
Test#3 (Generic, ZIP)
308 points/W
160 points/W
Test#1 (Memory)
54 points/W
98 points/W
TOTAL
2146 points/W
862 points/W

Performance/GHz
E5-2620 v4
i7-720QM
Test#1 (Integers)
2739 points/GHz
1962 points/GHz
Test#2 (FP)
4021 points/GHz
1267 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
717 points/GHz
Test#1 (Memory)
963 points/GHz
745 points/GHz
TOTAL
9059 points/GHz
4691 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