| | | |

Core i5-10400T vs Core 2 Quad Q8400


Description
The i5-10400T is based on Comet Lake architecture while the Q8400 is based on Core.

Using the multithread performance as a reference, the i5-10400T gets a score of 229.4 k points while the Q8400 gets 51.9 k points.

Summarizing, the i5-10400T is 4.4 times faster than the Q8400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0653
1067a
Core
Comet Lake-S
Yorkfield
Architecture
Base frecuency
2 GHz
2.666 GHz
Boost frecuency
3.6 GHz
2.666 GHz
Socket
FC-LGA 1200
LGA 775
Cores/Threads
6/12
4/4
TDP
35 W
95 W
Cache L1 (d+i)
6x32+6x32 kB
128+128 kB
Cache L2
6x256 kB
4096 kB
Cache L3
12288 kB
0 kB
Date
April 2020
April 2009

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
i5-10400T
Q8400
Test#1 (Integers)
4004
2441 (-39.04%)
Test#2 (FP)
14189
6239 (-56.03%)
Test#3 (Generic, ZIP)
4620
2620 (-43.29%)
Test#1 (Memory)
11029
1427 (-87.06%)
TOTAL
33842
12727 (-62.39%)

Multithread

i5-10400T

Q8400
Test#1 (Integers)
22767
9712 (-57.34%)
Test#2 (FP)
96586
24808 (-74.31%)
Test#3 (Generic, ZIP)
31652
10507 (-66.81%)
Test#1 (Memory)
2451
2028 (-17.26%)
TOTAL
153456
47054 (-69.34%)

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
i5-10400T
Q8400
Test#1 (Integers)
12610
3085 (-75.54%)
Test#2 (FP)
17941
6800 (-62.10%)
Test#3 (Generic, ZIP)
4828
2733 (-43.39%)
Test#1 (Memory)
10811
1417 (-86.89%)
TOTAL
46191
14035 (-69.61%)

Multithread

i5-10400T

Q8400
Test#1 (Integers)
74617
12248 (-83.58%)
Test#2 (FP)
119634
26838 (-77.57%)
Test#3 (Generic, ZIP)
32645
10818 (-66.86%)
Test#1 (Memory)
2520
2017 (-19.97%)
TOTAL
229416
51921 (-77.37%)

Performance/W
i5-10400T
Q8400
Test#1 (Integers)
2132 points/W
129 points/W
Test#2 (FP)
3418 points/W
283 points/W
Test#3 (Generic, ZIP)
933 points/W
114 points/W
Test#1 (Memory)
72 points/W
21 points/W
TOTAL
6555 points/W
547 points/W

Performance/GHz
i5-10400T
Q8400
Test#1 (Integers)
3503 points/GHz
1157 points/GHz
Test#2 (FP)
4984 points/GHz
2551 points/GHz
Test#3 (Generic, ZIP)
1341 points/GHz
1025 points/GHz
Test#1 (Memory)
3003 points/GHz
532 points/GHz
TOTAL
12831 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. 3.7.9