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Core i5-5675R vs i7-5820K


Description
The i5-5675R is based on Broadwell architecture while the i7-5820K is based on Haswell.

Using the multithread performance as a reference, the i5-5675R gets a score of 156.8 k points while the i7-5820K gets 129.1 k points.

Summarizing, the i5-5675R is 1.2 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
40671
306f2
Core
Bradwell-H
Haswell-E
Architecture
Base frecuency
3.1 GHz
3.3 GHz
Boost frecuency
3.6 GHz
3.6 GHz
Socket
BGA1364
LGA 1150
Cores/Threads
4/4
6/12
TDP
65 W
140 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
4096 kB
15360 kB
Date
June 2015
September 2014
Mean monothread perf.
51.43k points
31.53k points
Mean multithread perf.
194.2k points
129.06k 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
i5-5675R
i7-5820K
Test#1 (Integers)
4.14k
3.82k (x0.92)
Test#2 (FP)
14.35k
9.64k (x0.67)
Test#3 (Generic, ZIP)
4.94k
4.29k (x0.87)
Test#1 (Memory)
5.47k
3.78k (x0.69)
TOTAL
28.91k
21.53k (x0.74)

Multithread

i5-5675R

i7-5820K
Test#1 (Integers)
16.02k
18.07k (x1.13)
Test#2 (FP)
54.6k
64.25k (x1.18)
Test#3 (Generic, ZIP)
18.69k
27.03k (x1.45)
Test#1 (Memory)
16.87k
8.03k (x0.48)
TOTAL
106.18k
117.38k (x1.11)

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
i5-5675R
i7-5820K
Test#1 (Integers)
12.88k
12.03k (x0.93)
Test#2 (FP)
18.27k
11.23k (x0.61)
Test#3 (Generic, ZIP)
5.12k
4.55k (x0.89)
Test#1 (Memory)
5.45k
3.72k (x0.68)
TOTAL
41.72k
31.53k (x0.76)

Multithread

i5-5675R

i7-5820K
Test#1 (Integers)
49.91k
49.48k (x0.99)
Test#2 (FP)
70.3k
52.21k (x0.74)
Test#3 (Generic, ZIP)
19.69k
19.7k (x1)
Test#1 (Memory)
16.92k
7.67k (x0.45)
TOTAL
156.83k
129.06k (x0.82)

Performance/W
i5-5675R
i7-5820K
Test#1 (Integers)
768 points/W
353 points/W
Test#2 (FP)
1082 points/W
373 points/W
Test#3 (Generic, ZIP)
303 points/W
141 points/W
Test#1 (Memory)
260 points/W
55 points/W
TOTAL
2413 points/W
922 points/W

Performance/GHz
i5-5675R
i7-5820K
Test#1 (Integers)
3578 points/GHz
3343 points/GHz
Test#2 (FP)
5075 points/GHz
3119 points/GHz
Test#3 (Generic, ZIP)
1422 points/GHz
1264 points/GHz
Test#1 (Memory)
1514 points/GHz
1033 points/GHz
TOTAL
11589 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