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Core i3-1115G4 vs Core 2 Quad Q8400


Description
The i3-1115G4 is based on Tiger Lake architecture while the Q8400 is based on Core.

Using the multithread performance as a reference, the i3-1115G4 gets a score of 101.4 k points while the Q8400 gets 51.9 k points.

Summarizing, the i3-1115G4 is 2 times faster than the Q8400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806c1
1067a
Core
Tiger Lake UP3
Yorkfield
Architecture
Base frecuency
3 GHz
2.666 GHz
Boost frecuency
4.1 GHz
2.666 GHz
Socket
BGA1449
LGA 775
Cores/Threads
2/4
4/4
TDP
28 W
95 W
Cache L1 (d+i)
2x32+2x48 kB
128+128 kB
Cache L2
2x1280 kB
4096 kB
Cache L3
6144 kB
0 kB
Date
September 2020
April 2009
Mean monothread perf.
62.19k points
14.04k points
Mean multithread perf.
137.96k points
51.92k 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
i3-1115G4
Q8400
Test#1 (Integers)
3.75k
2.44k (x0.65)
Test#2 (FP)
17.22k
6.24k (x0.36)
Test#3 (Generic, ZIP)
9.79k
2.62k (x0.27)
Test#1 (Memory)
8.21k
1.43k (x0.17)
TOTAL
38.97k
12.73k (x0.33)

Multithread

i3-1115G4

Q8400
Test#1 (Integers)
9.19k
9.71k (x1.06)
Test#2 (FP)
35.47k
24.81k (x0.7)
Test#3 (Generic, ZIP)
19.14k
10.51k (x0.55)
Test#1 (Memory)
5.82k
2.03k (x0.35)
TOTAL
69.62k
47.05k (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
i3-1115G4
Q8400
Test#1 (Integers)
12.9k
3.08k (x0.24)
Test#2 (FP)
21.4k
6.8k (x0.32)
Test#3 (Generic, ZIP)
10.73k
2.73k (x0.25)
Test#1 (Memory)
8.16k
1.42k (x0.17)
TOTAL
53.19k
14.04k (x0.26)

Multithread

i3-1115G4

Q8400
Test#1 (Integers)
30.31k
12.25k (x0.4)
Test#2 (FP)
45.13k
26.84k (x0.59)
Test#3 (Generic, ZIP)
20.17k
10.82k (x0.54)
Test#1 (Memory)
5.77k
2.02k (x0.35)
TOTAL
101.38k
51.92k (x0.51)

Performance/W
i3-1115G4
Q8400
Test#1 (Integers)
1082 points/W
129 points/W
Test#2 (FP)
1612 points/W
283 points/W
Test#3 (Generic, ZIP)
720 points/W
114 points/W
Test#1 (Memory)
206 points/W
21 points/W
TOTAL
3621 points/W
547 points/W

Performance/GHz
i3-1115G4
Q8400
Test#1 (Integers)
3147 points/GHz
1157 points/GHz
Test#2 (FP)
5219 points/GHz
2551 points/GHz
Test#3 (Generic, ZIP)
2616 points/GHz
1025 points/GHz
Test#1 (Memory)
1991 points/GHz
532 points/GHz
TOTAL
12974 points/GHz
5265 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