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Xeon E3-1220 v3 vs Core i7-4790


Description
Both models E3-1220 v3 and i7-4790 are based on Haswell architecture.

"Haswell is known as fourth-generation core too. It uses 22nm Tri-Gate FinFET (non-planar, ""3D"") technology. It includes four arithmetic logic unit (ALU) and three address generation unit (AGU). This generation is able to run Advanced Vector Extensions 2 (AVX2) instruction set among BMI1, BMI2, ABM and FMA3. At this time, Intel used new sockets: LGA 1150 for desktops and BGA1364 for the mobile CPUs."

Using the multithread performance as a reference, the E3-1220 v3 gets a score of 140.8 k points while the i7-4790 gets 173.9 k points.

Summarizing, the i7-4790 is 1.2 times faster than the E3-1220 v3 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306c3
306c3
Core
Haswell-WS
Haswell
Architecture
Base frecuency
3.1 GHz
3.6 GHz
Boost frecuency
3.5 GHz
4 GHz
Socket
LGA 1150
LGA 1150
Cores/Threads
4 /4
4/8
TDP
80 W
84 W
Cache L1 (d+i)
64 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
8192 kB
8192 kB
Date
June 2013
May 2014
Mean monothread perf.
39.16k points
44.73k points
Mean multithread perf.
140.76k points
173.89k 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
E3-1220 v3
i7-4790
Test#1 (Integers)
3.45k
4.51k (x1.31)
Test#2 (FP)
9.96k
11.24k (x1.13)
Test#3 (Generic, ZIP)
4.26k
5.03k (x1.18)
Test#1 (Memory)
4.27k
5.02k (x1.18)
TOTAL
21.94k
25.8k (x1.18)

Multithread

E3-1220 v3

i7-4790
Test#1 (Integers)
14.01k
15.72k (x1.12)
Test#2 (FP)
37.68k
54.99k (x1.46)
Test#3 (Generic, ZIP)
17.05k
23.87k (x1.4)
Test#1 (Memory)
7.35k
5.48k (x0.75)
TOTAL
76.09k
100.06k (x1.31)

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
E3-1220 v3
i7-4790
Test#1 (Integers)
19.17k
22.19k (x1.16)
Test#2 (FP)
10.55k
12.45k (x1.18)
Test#3 (Generic, ZIP)
4.79k
5.11k (x1.07)
Test#1 (Memory)
4.65k
4.98k (x1.07)
TOTAL
39.16k
44.73k (x1.14)

Multithread

E3-1220 v3

i7-4790
Test#1 (Integers)
73.13k
87.14k (x1.19)
Test#2 (FP)
42.06k
58k (x1.38)
Test#3 (Generic, ZIP)
18.03k
22.75k (x1.26)
Test#1 (Memory)
7.54k
6k (x0.8)
TOTAL
140.76k
173.89k (x1.24)

Performance/W
E3-1220 v3
i7-4790
Test#1 (Integers)
914 points/W
1037 points/W
Test#2 (FP)
526 points/W
691 points/W
Test#3 (Generic, ZIP)
225 points/W
271 points/W
Test#1 (Memory)
94 points/W
71 points/W
TOTAL
1759 points/W
2070 points/W

Performance/GHz
E3-1220 v3
i7-4790
Test#1 (Integers)
5478 points/GHz
5547 points/GHz
Test#2 (FP)
3014 points/GHz
3113 points/GHz
Test#3 (Generic, ZIP)
1368 points/GHz
1279 points/GHz
Test#1 (Memory)
1328 points/GHz
1244 points/GHz
TOTAL
11188 points/GHz
11183 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