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Core i7-4790K vs Xeon E5-2620


Description
The i7-4790K is based on Haswell architecture while the E5-2620 is based on Sandy Bridge.

Using the multithread performance as a reference, the i7-4790K gets a score of 164.4 k points while the E5-2620 gets 224.7 k points.

Summarizing, the E5-2620 is 1.4 times faster than the i7-4790K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306c3
206d7
Core
Haswell
Sandy Bridge-EP
Architecture
Base frecuency
4 GHz
2 GHz
Boost frecuency
4.4 GHz
2.5 GHz
Socket
LGA 1150
LGA 2011
Cores/Threads
4/8
6/12
TDP
88 W
95 W
Cache L1 (d+i)
32+32 kB
6x32+6x32 kB
Cache L2
256 kB
6x256 kB
Cache L3
8192 kB
15360 kB
Date
May 2014
March 2012
Mean monothread perf.
52.47k points
18.8k points
Mean multithread perf.
215.47k 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
i7-4790K
E5-2620
Test#1 (Integers)
15.8k
6.95k (x0.44)
Test#2 (FP)
14.35k
6.24k (x0.43)
Test#3 (Generic, ZIP)
5.97k
3.05k (x0.51)
Test#1 (Memory)
5.17k
2.56k (x0.5)
TOTAL
41.29k
18.8k (x0.46)

Multithread

i7-4790K

E5-2620
Test#1 (Integers)
62.79k
90.01k (x1.43)
Test#2 (FP)
66.48k
82.43k (x1.24)
Test#3 (Generic, ZIP)
26.35k
42.59k (x1.62)
Test#1 (Memory)
8.74k
9.66k (x1.11)
TOTAL
164.36k
224.7k (x1.37)

Performance/W
i7-4790K
E5-2620
Test#1 (Integers)
713 points/W
948 points/W
Test#2 (FP)
755 points/W
868 points/W
Test#3 (Generic, ZIP)
299 points/W
448 points/W
Test#1 (Memory)
99 points/W
102 points/W
TOTAL
1868 points/W
2365 points/W

Performance/GHz
i7-4790K
E5-2620
Test#1 (Integers)
3591 points/GHz
2780 points/GHz
Test#2 (FP)
3260 points/GHz
2494 points/GHz
Test#3 (Generic, ZIP)
1358 points/GHz
1220 points/GHz
Test#1 (Memory)
1174 points/GHz
1024 points/GHz
TOTAL
9383 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