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Core i7-2600K vs i5-5675R


Description
The i7-2600K is based on Sandy Bridge architecture while the i5-5675R is based on Broadwell.

Using the multithread performance as a reference, the i7-2600K gets a score of 106.9 k points while the i5-5675R gets 156.8 k points.

Summarizing, the i5-5675R is 1.5 times faster than the i7-2600K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
40671
Core
Sandy Bridge
Bradwell-H
Architecture
Base frecuency
3.4 GHz
3.1 GHz
Boost frecuency
3.8 GHz
3.6 GHz
Socket
LGA 1155
BGA1364
Cores/Threads
4/8
4/4
TDP
95 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
8192 kB
4096 kB
Date
June 2011
June 2015
Mean monothread perf.
27.38k points
51.43k points
Mean multithread perf.
106.85k points
194.2k 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
i7-2600K
i5-5675R
Test#1 (Integers)
9.61k
12.88k (x1.34)
Test#2 (FP)
8.51k
18.27k (x2.15)
Test#3 (Generic, ZIP)
4.2k
5.12k (x1.22)
Test#1 (Memory)
5.06k
5.45k (x1.08)
TOTAL
27.38k
41.72k (x1.52)

Multithread

i7-2600K

i5-5675R
Test#1 (Integers)
42.23k
49.91k (x1.18)
Test#2 (FP)
40.09k
70.3k (x1.75)
Test#3 (Generic, ZIP)
19.97k
19.69k (x0.99)
Test#1 (Memory)
4.57k
16.92k (x3.7)
TOTAL
106.85k
156.83k (x1.47)

Performance/W
i7-2600K
i5-5675R
Test#1 (Integers)
444 points/W
768 points/W
Test#2 (FP)
422 points/W
1082 points/W
Test#3 (Generic, ZIP)
210 points/W
303 points/W
Test#1 (Memory)
48 points/W
260 points/W
TOTAL
1125 points/W
2413 points/W

Performance/GHz
i7-2600K
i5-5675R
Test#1 (Integers)
2528 points/GHz
3578 points/GHz
Test#2 (FP)
2238 points/GHz
5075 points/GHz
Test#3 (Generic, ZIP)
1105 points/GHz
1422 points/GHz
Test#1 (Memory)
1333 points/GHz
1514 points/GHz
TOTAL
7204 points/GHz
11589 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