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Core i7-4790K vs Xeon E5-2680 v2


Description
The i7-4790K is based on Haswell architecture while the E5-2680 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-4790K gets a score of 164.4 k points while the E5-2680 v2 gets 551.1 k points.

Summarizing, the E5-2680 v2 is 3.4 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
306e4
Core
Haswell
Ivy Bridge-EP
Architecture
Base frecuency
4 GHz
2.8 GHz
Boost frecuency
4.4 GHz
3.6 GHz
Socket
LGA 1150
LGA 2011
Cores/Threads
4/8
10 /20
TDP
88 W
115 W
Cache L1 (d+i)
32+32 kB
10x32+10x32 kB
Cache L2
256 kB
10x256 kB
Cache L3
8192 kB
25600 kB
Date
May 2014
September 2013
Mean monothread perf.
52.47k points
28.23k points
Mean multithread perf.
215.47k points
551.1k points

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
i7-4790K
E5-2680 v2
Test#1 (Integers)
15.6k
11.96k (x0.77)
Test#2 (FP)
13.92k
10.73k (x0.77)
Test#3 (Generic, ZIP)
6.12k
4.59k (x0.75)
Test#1 (Memory)
5k
4.31k (x0.86)
TOTAL
40.65k
31.6k (x0.78)

Multithread

i7-4790K

E5-2680 v2
Test#1 (Integers)
65.48k
218.24k (x3.33)
Test#2 (FP)
63.29k
206.92k (x3.27)
Test#3 (Generic, ZIP)
27.93k
100.37k (x3.59)
Test#1 (Memory)
7.84k
11.45k (x1.46)
TOTAL
164.54k
536.99k (x3.26)

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
E5-2680 v2
Test#1 (Integers)
15.8k
10.55k (x0.67)
Test#2 (FP)
14.35k
10.02k (x0.7)
Test#3 (Generic, ZIP)
5.97k
3.99k (x0.67)
Test#1 (Memory)
5.17k
3.66k (x0.71)
TOTAL
41.29k
28.23k (x0.68)

Multithread

i7-4790K

E5-2680 v2
Test#1 (Integers)
62.79k
215.04k (x3.43)
Test#2 (FP)
66.48k
230.43k (x3.47)
Test#3 (Generic, ZIP)
26.35k
96.87k (x3.68)
Test#1 (Memory)
8.74k
8.76k (x1)
TOTAL
164.36k
551.1k (x3.35)

Performance/W
i7-4790K
E5-2680 v2
Test#1 (Integers)
713 points/W
1870 points/W
Test#2 (FP)
755 points/W
2004 points/W
Test#3 (Generic, ZIP)
299 points/W
842 points/W
Test#1 (Memory)
99 points/W
76 points/W
TOTAL
1868 points/W
4792 points/W

Performance/GHz
i7-4790K
E5-2680 v2
Test#1 (Integers)
3591 points/GHz
2931 points/GHz
Test#2 (FP)
3260 points/GHz
2784 points/GHz
Test#3 (Generic, ZIP)
1358 points/GHz
1109 points/GHz
Test#1 (Memory)
1174 points/GHz
1017 points/GHz
TOTAL
9383 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