Core 2 Quad Q8400 vs Core 2 Duo E8500
Description
Both models Q8400 and E8500 are based on Core architecture.
Using the multithread performance as a reference, the Q8400 gets a score of 51.9 k points while the E8500 gets 31.2 k points.
Summarizing, the Q8400 is 1.7 times faster than the E8500 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the Q8400 gets a score of 51.9 k points while the E8500 gets 31.2 k points.
Summarizing, the Q8400 is 1.7 times faster than the E8500 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
1067a
1067a
Core
Yorkfield
Wolfdale
Base frecuency
2.666 GHz
3.167 GHz
Socket
LGA 775
LGA 775
Cores/Threads
4/4
2/2
TDP
95 W
65 W
Cache L1 (d+i)
128+128 kB
32+32 kB
Cache L2
4096 kB
6144 kB
Cache L3
0 kB
kB
Date
April 2009
August 2008
Mean monothread perf.
14.04k points
19.46k points
Mean multithread perf.
51.92k points
31.21k 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
E8500
Test#1 (Integers)
3.08k
3.65k (x1.18)
Test#2 (FP)
6.8k
8.07k (x1.19)
Test#3 (Generic, ZIP)
2.73k
3.15k (x1.15)
Test#1 (Memory)
1.42k
4.59k (x3.24)
TOTAL
14.04k
19.46k (x1.39)
Multithread
Q8400
E8500
Test#1 (Integers)
12.25k
7.11k (x0.58)
Test#2 (FP)
26.84k
15.79k (x0.59)
Test#3 (Generic, ZIP)
10.82k
6.2k (x0.57)
Test#1 (Memory)
2.02k
2.13k (x1.05)
TOTAL
51.92k
31.21k (x0.6)
Performance/W
Q8400
E8500
Test#1 (Integers)
129 points/W
109 points/W
Test#2 (FP)
283 points/W
243 points/W
Test#3 (Generic, ZIP)
114 points/W
95 points/W
Test#1 (Memory)
21 points/W
33 points/W
TOTAL
547 points/W
480 points/W
Performance/GHz
Q8400
E8500
Test#1 (Integers)
1157 points/GHz
1151 points/GHz
Test#2 (FP)
2551 points/GHz
2549 points/GHz
Test#3 (Generic, ZIP)
1025 points/GHz
994 points/GHz
Test#1 (Memory)
532 points/GHz
1450 points/GHz
TOTAL
5265 points/GHz
6144 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4