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Core i3-1005G1 vs i7-6600U


Description
The i3-1005G1 is based on Ice Lake architecture while the i7-6600U is based on Skylake.

Using the multithread performance as a reference, the i3-1005G1 gets a score of 116.6 k points while the i7-6600U gets 79.2 k points.

Summarizing, the i3-1005G1 is 1.5 times faster than the i7-6600U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
706e5
406e3
Core
Ice Lake-U
Skylake-U
Architecture
Base frecuency
1.2 GHz
2.6 GHz
Boost frecuency
3.4 GHz
3.4 GHz
Socket
BGA 1526
BGA1356
Cores/Threads
2/4
2/4
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x48 kB
2x32+2x32 kB
Cache L2
2x512 kB
2x256 kB
Cache L3
4096 kB
4096 kB
Date
August 2019
September 2015
Mean monothread perf.
50.62k points
39.73k points
Mean multithread perf.
116.63k points
79.22k 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
i3-1005G1
i7-6600U
Test#1 (Integers)
3.07k
2.75k (x0.9)
Test#2 (FP)
13.76k
12.23k (x0.89)
Test#3 (Generic, ZIP)
8k
3.9k (x0.49)
Test#1 (Memory)
6.59k
5.61k (x0.85)
TOTAL
31.42k
24.48k (x0.78)

Multithread

i3-1005G1

i7-6600U
Test#1 (Integers)
8k
5.23k (x0.65)
Test#2 (FP)
35.53k
25k (x0.7)
Test#3 (Generic, ZIP)
18.53k
8.98k (x0.48)
Test#1 (Memory)
4.3k
4.73k (x1.1)
TOTAL
66.36k
43.95k (x0.66)

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
i3-1005G1
i7-6600U
Test#1 (Integers)
10.52k
6.76k (x0.64)
Test#2 (FP)
17.6k
9.58k (x0.54)
Test#3 (Generic, ZIP)
8.76k
2.46k (x0.28)
Test#1 (Memory)
6.55k
4.18k (x0.64)
TOTAL
43.44k
22.99k (x0.53)

Multithread

i3-1005G1

i7-6600U
Test#1 (Integers)
26.86k
14.37k (x0.53)
Test#2 (FP)
42.38k
23.79k (x0.56)
Test#3 (Generic, ZIP)
20.65k
5.71k (x0.28)
Test#1 (Memory)
4.21k
4.29k (x1.02)
TOTAL
94.1k
48.16k (x0.51)

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
i3-1005G1
i7-6600U
Test#1 (Integers)
11.93k
8.49k (x0.71)
Test#2 (FP)
16.99k
10.92k (x0.64)
Test#3 (Generic, ZIP)
6.43k
2.76k (x0.43)
Test#1 (Memory)
4.59k
4.93k (x1.07)
TOTAL
39.93k
27.1k (x0.68)

Multithread

i3-1005G1

i7-6600U
Test#1 (Integers)
29.07k
14.11k (x0.49)
Test#2 (FP)
46.14k
20.05k (x0.43)
Test#3 (Generic, ZIP)
19.47k
6.17k (x0.32)
Test#1 (Memory)
4.18k
4.73k (x1.13)
TOTAL
98.86k
45.05k (x0.46)

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
i3-1005G1
i7-6600U
Test#1 (Integers)
19.45k
16.72k (x0.86)
Test#2 (FP)
16.75k
14.7k (x0.88)
Test#3 (Generic, ZIP)
8.04k
3.4k (x0.42)
Test#1 (Memory)
6.38k
4.9k (x0.77)
TOTAL
50.62k
39.73k (x0.78)

Multithread

i3-1005G1

i7-6600U
Test#1 (Integers)
46.52k
33.41k (x0.72)
Test#2 (FP)
48.76k
31.66k (x0.65)
Test#3 (Generic, ZIP)
17.12k
8.18k (x0.48)
Test#1 (Memory)
4.23k
5.97k (x1.41)
TOTAL
116.63k
79.22k (x0.68)

Performance/W
i3-1005G1
i7-6600U
Test#1 (Integers)
3102 points/W
2227 points/W
Test#2 (FP)
3251 points/W
2111 points/W
Test#3 (Generic, ZIP)
1141 points/W
546 points/W
Test#1 (Memory)
282 points/W
398 points/W
TOTAL
7776 points/W
5282 points/W

Performance/GHz
i3-1005G1
i7-6600U
Test#1 (Integers)
5721 points/GHz
4919 points/GHz
Test#2 (FP)
4926 points/GHz
4325 points/GHz
Test#3 (Generic, ZIP)
2365 points/GHz
999 points/GHz
Test#1 (Memory)
1877 points/GHz
1441 points/GHz
TOTAL
14889 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. 3.11.4