| | | |

Core i7-4500U vs i7-6600U


Description
The i7-4500U is based on Haswell architecture while the i7-6600U is based on Skylake.

Using the multithread performance as a reference, the i7-4500U gets a score of 68.3 k points while the i7-6600U gets 79.2 k points.

Summarizing, the i7-6600U is 1.2 times faster than the i7-4500U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
40651
406e3
Core
Haswell
Skylake-U
Architecture
Base frecuency
1.8 GHz
2.6 GHz
Boost frecuency
3 GHz
3.4 GHz
Socket
BGA1168
BGA1356
Cores/Threads
2 /2
2/4
TDP
15 W
15 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
4096 kB
4096 kB
Date
Jun 2013
September 2015

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
i7-4500U
i7-6600U
Test#1 (Integers)
3313
2748 (-17.05%)
Test#2 (FP)
8374
12231 (46.05%)
Test#3 (Generic, ZIP)
3680
3899 (5.96%)
Test#1 (Memory)
3343
5606 (67.67%)
TOTAL
18711
24484 (30.86%)

Multithread

i7-4500U

i7-6600U
Test#1 (Integers)
5207
5231 (0.45%)
Test#2 (FP)
18544
25002 (34.83%)
Test#3 (Generic, ZIP)
7797
8980 (15.17%)
Test#1 (Memory)
3545
4734 (33.57%)
TOTAL
35092
43947 (25.23%)

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
i7-4500U
i7-6600U
Test#1 (Integers)
10196
6763 (-33.67%)
Test#2 (FP)
9233
9581 (3.77%)
Test#3 (Generic, ZIP)
3894
2462 (-36.76%)
Test#1 (Memory)
3291
4180 (27.01%)
TOTAL
26614
22986 (-13.63%)

Multithread

i7-4500U

i7-6600U
Test#1 (Integers)
19204
14371 (-25.17%)
Test#2 (FP)
19017
23794 (25.12%)
Test#3 (Generic, ZIP)
8308
5706 (-31.32%)
Test#1 (Memory)
3222
4292 (33.20%)
TOTAL
49751
48163 (-3.19%)

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
i7-4500U
i7-6600U
Test#1 (Integers)
10412
8490 (-18.46%)
Test#2 (FP)
8970
10919 (21.73%)
Test#3 (Generic, ZIP)
3821
2763 (-27.69%)
Test#1 (Memory)
3385
4926 (45.53%)
TOTAL
26588
27098 (1.92%)

Multithread

i7-4500U

i7-6600U
Test#1 (Integers)
19907
14107 (-29.13%)
Test#2 (FP)
21470
20052 (-6.60%)
Test#3 (Generic, ZIP)
8534
6168 (-27.73%)
Test#1 (Memory)
3531
4726 (33.87%)
TOTAL
53442
45054 (-15.70%)

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
i7-4500U
i7-6600U
Test#1 (Integers)
17226
16724 (-2.91%)
Test#2 (FP)
9053
14705 (62.44%)
Test#3 (Generic, ZIP)
4032
3397 (-15.76%)
Test#1 (Memory)
3623
4901 (35.27%)
TOTAL
33933
39727 (17.07%)

Multithread

i7-4500U

i7-6600U
Test#1 (Integers)
33150
33409 (0.78%)
Test#2 (FP)
22687
31663 (39.57%)
Test#3 (Generic, ZIP)
8735
8184 (-6.31%)
Test#1 (Memory)
3696
5968 (61.46%)
TOTAL
68268
79224 (16.05%)

Performance/W
i7-4500U
i7-6600U
Test#1 (Integers)
2210 points/W
2227 points/W
Test#2 (FP)
1512 points/W
2111 points/W
Test#3 (Generic, ZIP)
582 points/W
546 points/W
Test#1 (Memory)
246 points/W
398 points/W
TOTAL
4551 points/W
5282 points/W

Performance/GHz
i7-4500U
i7-6600U
Test#1 (Integers)
5742 points/GHz
4919 points/GHz
Test#2 (FP)
3018 points/GHz
4325 points/GHz
Test#3 (Generic, ZIP)
1344 points/GHz
999 points/GHz
Test#1 (Memory)
1208 points/GHz
1441 points/GHz
TOTAL
11311 points/GHz
11684 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. 3.7.8