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Core i3-1005G1 vs i7-920


Description
The i3-1005G1 is based on Ice Lake architecture while the i7-920 is based on Nehalem Westmere.

Using the multithread performance as a reference, the i3-1005G1 gets a score of 94.1 k points while the i7-920 gets 47.2 k points.

Summarizing, the i3-1005G1 is 2 times faster than the i7-920 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
706e5
106a5
Core
Ice Lake-U
Bloomfield
Architecture
Ice Lake
Base frecuency
1.2 GHz
2.667 GHz
Boost frecuency
3.4 GHz
2.993 GHz
Socket
BGA 1526
LGA 1366
Cores/Threads
2/4
4/8
TDP
15 W
130 W
Cache L1 (d+i)
2x32+2x48 kB
32+32 kB
Cache L2
2x512 kB
256 kB
Cache L3
4096 kB
8192 kB
Date
August 2019
November 2008
Mean monothread perf.
50.62k points
16.33k points
Mean multithread perf.
116.63k points
47.2k 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
i7-920
Test#1 (Integers)
3.07k
1.97k (x0.64)
Test#2 (FP)
13.76k
4.43k (x0.32)
Test#3 (Generic, ZIP)
8k
2.75k (x0.34)
Test#1 (Memory)
6.59k
2.53k (x0.38)
TOTAL
31.42k
11.68k (x0.37)

Multithread

i3-1005G1

i7-920
Test#1 (Integers)
8k
7.71k (x0.96)
Test#2 (FP)
35.53k
18.81k (x0.53)
Test#3 (Generic, ZIP)
18.53k
13.76k (x0.74)
Test#1 (Memory)
4.3k
5.07k (x1.18)
TOTAL
66.36k
45.34k (x0.68)

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
i7-920
Test#1 (Integers)
10.52k
6.12k (x0.58)
Test#2 (FP)
17.6k
4.76k (x0.27)
Test#3 (Generic, ZIP)
8.76k
2.78k (x0.32)
Test#1 (Memory)
6.55k
2.67k (x0.41)
TOTAL
43.44k
16.33k (x0.38)

Multithread

i3-1005G1

i7-920
Test#1 (Integers)
26.86k
19.26k (x0.72)
Test#2 (FP)
42.38k
14.96k (x0.35)
Test#3 (Generic, ZIP)
20.65k
8.05k (x0.39)
Test#1 (Memory)
4.21k
4.92k (x1.17)
TOTAL
94.1k
47.2k (x0.5)

Performance/W
i3-1005G1
i7-920
Test#1 (Integers)
1791 points/W
148 points/W
Test#2 (FP)
2825 points/W
115 points/W
Test#3 (Generic, ZIP)
1377 points/W
62 points/W
Test#1 (Memory)
281 points/W
38 points/W
TOTAL
6273 points/W
363 points/W

Performance/GHz
i3-1005G1
i7-920
Test#1 (Integers)
3095 points/GHz
2044 points/GHz
Test#2 (FP)
5177 points/GHz
1591 points/GHz
Test#3 (Generic, ZIP)
2577 points/GHz
930 points/GHz
Test#1 (Memory)
1926 points/GHz
891 points/GHz
TOTAL
12775 points/GHz
5457 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