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Xeon E5506 vs Core 2 Duo T6400


Description
The E5506 is based on Nehalem architecture while the T6400 is based on Core.

Using the multithread performance as a reference, the E5506 gets a score of 90.4 k points while the T6400 gets 17.1 k points.

Summarizing, the E5506 is 5.3 times faster than the T6400. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
1067a
Core
Gainestown
Penryn-3M
Architecture
Base frecuency
2.133 GHz
2 GHz
Socket
LGA 1366
FC-PGA
Cores/Threads
4 /4
2/2
TDP
80 W
35 W
Cache L1 (d+i)
64 kB
2x32+2x32 kB
Cache L2
256 kB
2048 kB
Cache L3
4096 kB
0 kB
Date
March 2009
January 2009
Mean monothread perf.
9.97k points
10.08k points
Mean multithread perf.
90.45k points
17.08k 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
E5506
T6400
Test#1 (Integers)
1.21k
1.76k (x1.46)
Test#2 (FP)
2.75k
4.63k (x1.68)
Test#3 (Generic, ZIP)
1.94k
1.86k (x0.96)
Test#1 (Memory)
0.78k
1k (x1.28)
TOTAL
6.68k
9.24k (x1.38)

Multithread

E5506

T6400
Test#1 (Integers)
12.25k
3.21k (x0.26)
Test#2 (FP)
25.55k
8.75k (x0.34)
Test#3 (Generic, ZIP)
17.1k
3.47k (x0.2)
Test#1 (Memory)
5.01k
1.14k (x0.23)
TOTAL
59.9k
16.58k (x0.28)

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
E5506
T6400
Test#1 (Integers)
4.48k
2.26k (x0.5)
Test#2 (FP)
2.99k
4.98k (x1.66)
Test#3 (Generic, ZIP)
1.81k
1.89k (x1.04)
Test#1 (Memory)
0.69k
0.96k (x1.38)
TOTAL
9.97k
10.08k (x1.01)

Multithread

E5506

T6400
Test#1 (Integers)
41k
4.06k (x0.1)
Test#2 (FP)
28.17k
8.53k (x0.3)
Test#3 (Generic, ZIP)
17.4k
3.38k (x0.19)
Test#1 (Memory)
3.88k
1.11k (x0.29)
TOTAL
90.45k
17.08k (x0.19)

Performance/W
E5506
T6400
Test#1 (Integers)
513 points/W
116 points/W
Test#2 (FP)
352 points/W
244 points/W
Test#3 (Generic, ZIP)
217 points/W
96 points/W
Test#1 (Memory)
48 points/W
32 points/W
TOTAL
1131 points/W
488 points/W

Performance/GHz
E5506
T6400
Test#1 (Integers)
2099 points/GHz
1128 points/GHz
Test#2 (FP)
1404 points/GHz
2491 points/GHz
Test#3 (Generic, ZIP)
847 points/GHz
944 points/GHz
Test#1 (Memory)
325 points/GHz
478 points/GHz
TOTAL
4675 points/GHz
5040 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