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Core 2 Duo T6500 vs P8400


Description
Both models T6500 and P8400 are based on Core architecture.



Using the multithread performance as a reference, the T6500 gets a score of 9.2 k points while the P8400 gets 21 k points.

Summarizing, the P8400 is 2.3 times faster than the T6500. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
10676
Core
Penryn-3M
Peryn-3M
Architecture
Base frecuency
2.1 GHz
2.267 GHz
Socket
FC-PGA 478
Socket P
Cores/Threads
2/2
2/2
TDP
35 W
25 W
Cache L1 (d+i)
2x32+2x32 kB
2x32 kB
Cache L2
2048 kB
3072 kB
Date
April 2009
July 2008
Mean monothread perf.
10.9k points
11.38k points
Mean multithread perf.
9.17k points
21.02k 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
T6500
P8400
Test#1 (Integers)
0.07k
1.78k (x26.58)
Test#2 (FP)
3.11k
4.95k (x1.59)
Test#3 (Generic, ZIP)
0.62k
2.08k (x3.34)
Test#1 (Memory)
1.02k
1.44k (x1.41)
TOTAL
4.82k
10.24k (x2.13)

Multithread

T6500

P8400
Test#1 (Integers)
1.2k
3.53k (x2.94)
Test#2 (FP)
3.18k
9.75k (x3.06)
Test#3 (Generic, ZIP)
1.53k
4.07k (x2.66)
Test#1 (Memory)
1.21k
1.44k (x1.19)
TOTAL
7.12k
18.79k (x2.64)

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
T6500
P8400
Test#1 (Integers)
2.41k
2.43k (x1.01)
Test#2 (FP)
5.31k
5.4k (x1.02)
Test#3 (Generic, ZIP)
2.04k
2.13k (x1.04)
Test#1 (Memory)
1.14k
1.43k (x1.25)
TOTAL
10.9k
11.38k (x1.04)

Multithread

T6500

P8400
Test#1 (Integers)
1.81k
4.81k (x2.65)
Test#2 (FP)
4.55k
10.58k (x2.33)
Test#3 (Generic, ZIP)
1.58k
4.18k (x2.64)
Test#1 (Memory)
1.23k
1.45k (x1.18)
TOTAL
9.17k
21.02k (x2.29)

Performance/W
T6500
P8400
Test#1 (Integers)
52 points/W
193 points/W
Test#2 (FP)
130 points/W
423 points/W
Test#3 (Generic, ZIP)
45 points/W
167 points/W
Test#1 (Memory)
35 points/W
58 points/W
TOTAL
262 points/W
841 points/W

Performance/GHz
T6500
P8400
Test#1 (Integers)
1148 points/GHz
1071 points/GHz
Test#2 (FP)
2530 points/GHz
2383 points/GHz
Test#3 (Generic, ZIP)
972 points/GHz
938 points/GHz
Test#1 (Memory)
542 points/GHz
629 points/GHz
TOTAL
5192 points/GHz
5022 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