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Core i7-6700K vs i7-4765T


Description
The i7-6700K is based on Skylake architecture while the i7-4765T is based on Haswell.

Using the multithread performance as a reference, the i7-6700K gets a score of 254.6 k points while the i7-4765T gets 134.5 k points.

Summarizing, the i7-6700K is 1.9 times faster than the i7-4765T . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
306c3
Core
Skylake-S
Haswell
Architecture
Base frecuency
4 GHz
2 GHz
Boost frecuency
4.2 GHz
3 GHz
Socket
LGA 1151
LGA 1150
Cores/Threads
4/8
4/8
TDP
95 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
8192 kB
Date
May 2015
May 2013
Mean monothread perf.
63.22k points
31.31k points
Mean multithread perf.
254.56k points
134.53k points

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
i7-6700K
i7-4765T
Test#1 (Integers)
25.78k
15.61k (x0.61)
Test#2 (FP)
23.08k
8.8k (x0.38)
Test#3 (Generic, ZIP)
5.32k
3.58k (x0.67)
Test#1 (Memory)
9.03k
3.33k (x0.37)
TOTAL
63.22k
31.31k (x0.5)

Multithread

i7-6700K

i7-4765T
Test#1 (Integers)
112.83k
66k (x0.58)
Test#2 (FP)
106.86k
43.27k (x0.4)
Test#3 (Generic, ZIP)
25.76k
17.39k (x0.67)
Test#1 (Memory)
9.12k
7.88k (x0.86)
TOTAL
254.56k
134.53k (x0.53)

Performance/W
i7-6700K
i7-4765T
Test#1 (Integers)
1188 points/W
1886 points/W
Test#2 (FP)
1125 points/W
1236 points/W
Test#3 (Generic, ZIP)
271 points/W
497 points/W
Test#1 (Memory)
96 points/W
225 points/W
TOTAL
2680 points/W
3844 points/W

Performance/GHz
i7-6700K
i7-4765T
Test#1 (Integers)
6139 points/GHz
5203 points/GHz
Test#2 (FP)
5495 points/GHz
2932 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1193 points/GHz
Test#1 (Memory)
2150 points/GHz
1110 points/GHz
TOTAL
15052 points/GHz
10438 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