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Xeon E5-1620 v2 vs Core i7-5820K


Description
The E5-1620 v2 is based on Ivy Bridge architecture while the i7-5820K is based on Haswell.

Using the multithread performance as a reference, the E5-1620 v2 gets a score of 144.6 k points while the i7-5820K gets 129.1 k points.

Summarizing, the E5-1620 v2 is 1.1 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306e4
306f2
Core
Ivy Bridge-EP
Haswell-E
Architecture
Base frecuency
3.7 GHz
3.3 GHz
Boost frecuency
3.9 GHz
3.6 GHz
Socket
LGA 2011
LGA 1150
Cores/Threads
4 /8
6/12
TDP
130 W
140 W
Cache L1 (d+i)
4x32+x4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
10240 kB
15360 kB
Date
September 2013
September 2014
Mean monothread perf.
34.37k points
31.53k points
Mean multithread perf.
144.57k points
129.06k 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
E5-1620 v2
i7-5820K
Test#1 (Integers)
12.55k
12.03k (x0.96)
Test#2 (FP)
12.14k
11.23k (x0.92)
Test#3 (Generic, ZIP)
4.83k
4.55k (x0.94)
Test#1 (Memory)
4.85k
3.72k (x0.77)
TOTAL
34.37k
31.53k (x0.92)

Multithread

E5-1620 v2

i7-5820K
Test#1 (Integers)
51.93k
49.48k (x0.95)
Test#2 (FP)
56.7k
52.21k (x0.92)
Test#3 (Generic, ZIP)
23.81k
19.7k (x0.83)
Test#1 (Memory)
12.14k
7.67k (x0.63)
TOTAL
144.57k
129.06k (x0.89)

Performance/W
E5-1620 v2
i7-5820K
Test#1 (Integers)
399 points/W
353 points/W
Test#2 (FP)
436 points/W
373 points/W
Test#3 (Generic, ZIP)
183 points/W
141 points/W
Test#1 (Memory)
93 points/W
55 points/W
TOTAL
1112 points/W
922 points/W

Performance/GHz
E5-1620 v2
i7-5820K
Test#1 (Integers)
3217 points/GHz
3343 points/GHz
Test#2 (FP)
3113 points/GHz
3119 points/GHz
Test#3 (Generic, ZIP)
1238 points/GHz
1264 points/GHz
Test#1 (Memory)
1244 points/GHz
1033 points/GHz
TOTAL
8812 points/GHz
8759 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