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Core i7-6700K vs i5-3570K


Description
The i7-6700K is based on Skylake architecture while the i5-3570K is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-6700K gets a score of 197.1 k points while the i5-3570K gets 116.8 k points.

Summarizing, the i7-6700K is 1.7 times faster than the i5-3570K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
306a9
Core
Skylake-S
Ivy Bridge
Architecture
Base frecuency
4 GHz
3.4 GHz
Boost frecuency
4.2 GHz
3.8 GHz
Socket
LGA 1151
LGA 1155
Cores/Threads
4/8
4/4
TDP
95 W
77 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+x4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
May 2015
April 2012
Mean monothread perf.
63.22k points
34.57k points
Mean multithread perf.
254.56k points
120.16k 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
i7-6700K
i5-3570K
Test#1 (Integers)
4.07k
3.85k (x0.94)
Test#2 (FP)
16.62k
10.72k (x0.64)
Test#3 (Generic, ZIP)
5.23k
4.83k (x0.92)
Test#1 (Memory)
6.28k
5.21k (x0.83)
TOTAL
32.2k
24.6k (x0.76)

Multithread

i7-6700K

i5-3570K
Test#1 (Integers)
16.37k
14.34k (x0.88)
Test#2 (FP)
77.34k
40.2k (x0.52)
Test#3 (Generic, ZIP)
25.65k
17.91k (x0.7)
Test#1 (Memory)
10.21k
7.05k (x0.69)
TOTAL
129.57k
79.5k (x0.61)

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
i7-6700K
i5-3570K
Test#1 (Integers)
14.73k
12.78k (x0.87)
Test#2 (FP)
21.27k
11.69k (x0.55)
Test#3 (Generic, ZIP)
5.52k
5.01k (x0.91)
Test#1 (Memory)
6.32k
5.19k (x0.82)
TOTAL
47.84k
34.66k (x0.72)

Multithread

i7-6700K

i5-3570K
Test#1 (Integers)
61.09k
48.18k (x0.79)
Test#2 (FP)
99.17k
43.19k (x0.44)
Test#3 (Generic, ZIP)
26.57k
18.37k (x0.69)
Test#1 (Memory)
10.26k
7.03k (x0.69)
TOTAL
197.09k
116.78k (x0.59)

Performance/W
i7-6700K
i5-3570K
Test#1 (Integers)
643 points/W
626 points/W
Test#2 (FP)
1044 points/W
561 points/W
Test#3 (Generic, ZIP)
280 points/W
239 points/W
Test#1 (Memory)
108 points/W
91 points/W
TOTAL
2075 points/W
1517 points/W

Performance/GHz
i7-6700K
i5-3570K
Test#1 (Integers)
3508 points/GHz
3364 points/GHz
Test#2 (FP)
5065 points/GHz
3075 points/GHz
Test#3 (Generic, ZIP)
1313 points/GHz
1318 points/GHz
Test#1 (Memory)
1505 points/GHz
1365 points/GHz
TOTAL
11391 points/GHz
9122 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