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Core i7-6600U vs Core 2 Duo E6600


Description
The i7-6600U is based on Skylake architecture while the E6600 is based on Core.

Using the multithread performance as a reference, the i7-6600U gets a score of 48.2 k points while the E6600 gets 16.1 k points.

Summarizing, the i7-6600U is 3 times faster than the E6600 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
6f6
Core
Skylake-U
Conroe
Architecture
Base frecuency
2.6 GHz
2.4 GHz
Boost frecuency
3.4 GHz
2.4 GHz
Socket
BGA1356
LGA 775
Cores/Threads
2/4
2/2
TDP
15 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
2x256 kB
4096 kB
Cache L3
4096 kB
0 kB
Date
September 2015
July 2006
Mean monothread perf.
39.73k points
9.99k points
Mean multithread perf.
79.22k points
16.12k 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
i7-6600U
E6600
Test#1 (Integers)
2.75k
2.38k (x0.87)
Test#2 (FP)
12.23k
2.39k (x0.2)
Test#3 (Generic, ZIP)
3.9k
2.39k (x0.61)
Test#1 (Memory)
5.61k
2.79k (x0.5)
TOTAL
24.48k
9.95k (x0.41)

Multithread

i7-6600U

E6600
Test#1 (Integers)
5.23k
4.68k (x0.9)
Test#2 (FP)
25k
4.68k (x0.19)
Test#3 (Generic, ZIP)
8.98k
4.69k (x0.52)
Test#1 (Memory)
4.73k
1.8k (x0.38)
TOTAL
43.95k
15.86k (x0.36)

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
i7-6600U
E6600
Test#1 (Integers)
6.76k
2.7k (x0.4)
Test#2 (FP)
9.58k
2.42k (x0.25)
Test#3 (Generic, ZIP)
2.46k
2.41k (x0.98)
Test#1 (Memory)
4.18k
2.46k (x0.59)
TOTAL
22.99k
9.99k (x0.43)

Multithread

i7-6600U

E6600
Test#1 (Integers)
14.37k
5.19k (x0.36)
Test#2 (FP)
23.79k
4.55k (x0.19)
Test#3 (Generic, ZIP)
5.71k
4.6k (x0.81)
Test#1 (Memory)
4.29k
1.78k (x0.42)
TOTAL
48.16k
16.12k (x0.33)

Performance/W
i7-6600U
E6600
Test#1 (Integers)
958 points/W
80 points/W
Test#2 (FP)
1586 points/W
70 points/W
Test#3 (Generic, ZIP)
380 points/W
71 points/W
Test#1 (Memory)
286 points/W
27 points/W
TOTAL
3211 points/W
248 points/W

Performance/GHz
i7-6600U
E6600
Test#1 (Integers)
1989 points/GHz
1125 points/GHz
Test#2 (FP)
2818 points/GHz
1009 points/GHz
Test#3 (Generic, ZIP)
724 points/GHz
1005 points/GHz
Test#1 (Memory)
1229 points/GHz
1025 points/GHz
TOTAL
6761 points/GHz
4164 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