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Core i3-1005G1 vs i7-8700k


Description
The i3-1005G1 is based on Ice Lake architecture while the i7-8700k is based on Coffee Lake.

Using the multithread performance as a reference, the i3-1005G1 gets a score of 116.6 k points while the i7-8700k gets 443.8 k points.

Summarizing, the i7-8700k is 3.8 times faster than the i3-1005G1. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
706e5
906ea
Core
Ice Lake-U
Coffee Lake-S
Architecture
Base frecuency
1.2 GHz
3.7 GHz
Boost frecuency
3.4 GHz
4.7 GHz
Socket
BGA 1526
LGA 1151
Cores/Threads
2/4
6/12
TDP
15 W
95 W
Cache L1 (d+i)
2x32+2x48 kB
6x32+6x32 kB
Cache L2
2x512 kB
6x256 kB
Cache L3
4096 kB
12288 kB
Date
August 2019
October 2017
Mean monothread perf.
50.62k points
80.6k points
Mean multithread perf.
116.63k points
443.77k 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
i7-8700k
Test#1 (Integers)
3.07k
4.13k (x1.34)
Test#2 (FP)
13.76k
16.96k (x1.23)
Test#3 (Generic, ZIP)
8k
5.56k (x0.7)
Test#1 (Memory)
6.59k
12.85k (x1.95)
TOTAL
31.42k
39.5k (x1.26)

Multithread

i3-1005G1

i7-8700k
Test#1 (Integers)
8k
24.01k (x3)
Test#2 (FP)
35.53k
108.69k (x3.06)
Test#3 (Generic, ZIP)
18.53k
36.62k (x1.98)
Test#1 (Memory)
4.3k
9.33k (x2.17)
TOTAL
66.36k
178.64k (x2.69)

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
i7-8700k
Test#1 (Integers)
10.52k
12.92k (x1.23)
Test#2 (FP)
17.6k
20.68k (x1.17)
Test#3 (Generic, ZIP)
8.76k
5.3k (x0.6)
Test#1 (Memory)
6.55k
12.59k (x1.92)
TOTAL
43.44k
51.48k (x1.19)

Multithread

i3-1005G1

i7-8700k
Test#1 (Integers)
26.86k
94.26k (x3.51)
Test#2 (FP)
42.38k
152.55k (x3.6)
Test#3 (Generic, ZIP)
20.65k
39.74k (x1.92)
Test#1 (Memory)
4.21k
8.53k (x2.03)
TOTAL
94.1k
295.07k (x3.14)

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
i7-8700k
Test#1 (Integers)
11.93k
16.87k (x1.41)
Test#2 (FP)
16.99k
26.12k (x1.54)
Test#3 (Generic, ZIP)
6.43k
6.33k (x0.99)
Test#1 (Memory)
4.59k
13.71k (x2.99)
TOTAL
39.93k
63.03k (x1.58)

Multithread

i3-1005G1

i7-8700k
Test#1 (Integers)
29.07k
105.74k (x3.64)
Test#2 (FP)
46.14k
180.52k (x3.91)
Test#3 (Generic, ZIP)
19.47k
44.99k (x2.31)
Test#1 (Memory)
4.18k
8.51k (x2.03)
TOTAL
98.86k
339.77k (x3.44)

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
i7-8700k
Test#1 (Integers)
19.45k
31.2k (x1.6)
Test#2 (FP)
16.75k
27.82k (x1.66)
Test#3 (Generic, ZIP)
8.04k
6.57k (x0.82)
Test#1 (Memory)
6.38k
15k (x2.35)
TOTAL
50.62k
80.6k (x1.59)

Multithread

i3-1005G1

i7-8700k
Test#1 (Integers)
46.52k
202.42k (x4.35)
Test#2 (FP)
48.76k
186.33k (x3.82)
Test#3 (Generic, ZIP)
17.12k
44.96k (x2.63)
Test#1 (Memory)
4.23k
10.05k (x2.38)
TOTAL
116.63k
443.77k (x3.8)

Performance/W
i3-1005G1
i7-8700k
Test#1 (Integers)
3102 points/W
2131 points/W
Test#2 (FP)
3251 points/W
1961 points/W
Test#3 (Generic, ZIP)
1141 points/W
473 points/W
Test#1 (Memory)
282 points/W
106 points/W
TOTAL
7776 points/W
4671 points/W

Performance/GHz
i3-1005G1
i7-8700k
Test#1 (Integers)
5721 points/GHz
6639 points/GHz
Test#2 (FP)
4926 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
2365 points/GHz
1397 points/GHz
Test#1 (Memory)
1877 points/GHz
3192 points/GHz
TOTAL
14889 points/GHz
17148 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