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Core i7-6700K vs i7-3770K


Description
The i7-6700K is based on Skylake architecture while the i7-3770K is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-6700K gets a score of 129.6 k points while the i7-3770K gets 97.4 k points.

Summarizing, the i7-6700K is 1.3 times faster than the i7-3770K . 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
3.5 GHz
Boost frecuency
4.2 GHz
3.9 GHz
Socket
LGA 1151
LGA 1155
Cores/Threads
4/8
4/8
TDP
95 W
77 W
Cache L1 (d+i)
4x32+4x32 kB
4x62+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
8192 kB
Date
May 2015
April 2012
Mean monothread perf.
63.22k points
36.19k points
Mean multithread perf.
254.56k points
133.88k 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
i7-3770K
Test#1 (Integers)
4.07k
3.86k (x0.95)
Test#2 (FP)
16.62k
10.79k (x0.65)
Test#3 (Generic, ZIP)
5.23k
4.9k (x0.94)
Test#1 (Memory)
6.28k
5.51k (x0.88)
TOTAL
32.2k
25.06k (x0.78)

Multithread

i7-6700K

i7-3770K
Test#1 (Integers)
16.37k
17.17k (x1.05)
Test#2 (FP)
77.34k
46.25k (x0.6)
Test#3 (Generic, ZIP)
25.65k
23.67k (x0.92)
Test#1 (Memory)
10.21k
10.36k (x1.01)
TOTAL
129.57k
97.44k (x0.75)

Performance/W
i7-6700K
i7-3770K
Test#1 (Integers)
172 points/W
223 points/W
Test#2 (FP)
814 points/W
601 points/W
Test#3 (Generic, ZIP)
270 points/W
307 points/W
Test#1 (Memory)
107 points/W
135 points/W
TOTAL
1364 points/W
1265 points/W

Performance/GHz
i7-6700K
i7-3770K
Test#1 (Integers)
970 points/GHz
990 points/GHz
Test#2 (FP)
3957 points/GHz
2768 points/GHz
Test#3 (Generic, ZIP)
1244 points/GHz
1256 points/GHz
Test#1 (Memory)
1495 points/GHz
1412 points/GHz
TOTAL
7666 points/GHz
6426 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