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Core i7-5820K vs Xeon E5-2680 v2


Description
The i7-5820K is based on Haswell architecture while the E5-2680 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-5820K gets a score of 129.1 k points while the E5-2680 v2 gets 551.1 k points.

Summarizing, the E5-2680 v2 is 4.3 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
306e4
Core
Haswell-E
Ivy Bridge-EP
Architecture
Base frecuency
3.3 GHz
2.8 GHz
Boost frecuency
3.6 GHz
3.6 GHz
Socket
LGA 1150
LGA 2011
Cores/Threads
6/12
10 /20
TDP
140 W
115 W
Cache L1 (d+i)
32+32 kB
10x32+10x32 kB
Cache L2
256 kB
10x256 kB
Cache L3
15360 kB
25600 kB
Date
September 2014
September 2013
Mean monothread perf.
31.53k points
28.23k points
Mean multithread perf.
129.06k points
551.1k 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
i7-5820K
E5-2680 v2
Test#1 (Integers)
12.03k
10.55k (x0.88)
Test#2 (FP)
11.23k
10.02k (x0.89)
Test#3 (Generic, ZIP)
4.55k
3.99k (x0.88)
Test#1 (Memory)
3.72k
3.66k (x0.98)
TOTAL
31.53k
28.23k (x0.9)

Multithread

i7-5820K

E5-2680 v2
Test#1 (Integers)
49.48k
215.04k (x4.35)
Test#2 (FP)
52.21k
230.43k (x4.41)
Test#3 (Generic, ZIP)
19.7k
96.87k (x4.92)
Test#1 (Memory)
7.67k
8.76k (x1.14)
TOTAL
129.06k
551.1k (x4.27)

Performance/W
i7-5820K
E5-2680 v2
Test#1 (Integers)
353 points/W
1870 points/W
Test#2 (FP)
373 points/W
2004 points/W
Test#3 (Generic, ZIP)
141 points/W
842 points/W
Test#1 (Memory)
55 points/W
76 points/W
TOTAL
922 points/W
4792 points/W

Performance/GHz
i7-5820K
E5-2680 v2
Test#1 (Integers)
3343 points/GHz
2931 points/GHz
Test#2 (FP)
3119 points/GHz
2784 points/GHz
Test#3 (Generic, ZIP)
1264 points/GHz
1109 points/GHz
Test#1 (Memory)
1033 points/GHz
1017 points/GHz
TOTAL
8759 points/GHz
7841 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