| | | | | | |

Core 2 Quad Q8400 vs Pentium 4405U


Description
The Q8400 is based on Core architecture while the 4405U is based on Skylake.

Using the multithread performance as a reference, the Q8400 gets a score of 51.9 k points while the 4405U gets 51.1 k points.

Summarizing, the Q8400 is 1 times faster than the 4405U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
406e3
Core
Yorkfield
Skylake-U
Architecture
Base frecuency
2.666 GHz
2.1 GHz
Socket
LGA 775
BGA 1356
Cores/Threads
4/4
2/4
TDP
95 W
15 W
Cache L1 (d+i)
128+128 kB
2x32+2x32 kB
Cache L2
4096 kB
2x256 kB
Cache L3
0 kB
2048 kB
Date
April 2009
Mean monothread perf.
14.04k points
23.33k points
Mean multithread perf.
51.92k points
51.1k points

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
Q8400
4405U
Test#1 (Integers)
3.08k
7.45k (x2.41)
Test#2 (FP)
6.8k
10.51k (x1.55)
Test#3 (Generic, ZIP)
2.73k
2.78k (x1.02)
Test#1 (Memory)
1.42k
2.59k (x1.82)
TOTAL
14.04k
23.33k (x1.66)

Multithread

Q8400

4405U
Test#1 (Integers)
12.25k
16.1k (x1.31)
Test#2 (FP)
26.84k
25.44k (x0.95)
Test#3 (Generic, ZIP)
10.82k
6.99k (x0.65)
Test#1 (Memory)
2.02k
2.58k (x1.28)
TOTAL
51.92k
51.1k (x0.98)

Performance/W
Q8400
4405U
Test#1 (Integers)
129 points/W
1073 points/W
Test#2 (FP)
283 points/W
1696 points/W
Test#3 (Generic, ZIP)
114 points/W
466 points/W
Test#1 (Memory)
21 points/W
172 points/W
TOTAL
547 points/W
3407 points/W

Performance/GHz
Q8400
4405U
Test#1 (Integers)
1157 points/GHz
3547 points/GHz
Test#2 (FP)
2551 points/GHz
5007 points/GHz
Test#3 (Generic, ZIP)
1025 points/GHz
1324 points/GHz
Test#1 (Memory)
532 points/GHz
1232 points/GHz
TOTAL
5265 points/GHz
11109 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