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Core 2 Duo T7250 vs P8400


Description
Both models T7250 and P8400 are based on Core architecture.



Using the multithread performance as a reference, the T7250 gets a score of 13.8 k points while the P8400 gets 21 k points.

Summarizing, the P8400 is 1.5 times faster than the T7250 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
6fd
10676
Core
Merom
Peryn-3M
Architecture
Base frecuency
2 GHz
2.267 GHz
Socket
Socket P
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
September 2007
July 2008
Mean monothread perf.
7.57k points
11.38k points
Mean multithread perf.
13.82k 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
T7250
P8400
Test#1 (Integers)
1.96k
1.78k (x0.91)
Test#2 (FP)
2k
4.95k (x2.47)
Test#3 (Generic, ZIP)
1.96k
2.08k (x1.06)
Test#1 (Memory)
1.22k
1.44k (x1.17)
TOTAL
7.14k
10.24k (x1.43)

Multithread

T7250

P8400
Test#1 (Integers)
3.87k
3.53k (x0.91)
Test#2 (FP)
3.95k
9.75k (x2.47)
Test#3 (Generic, ZIP)
3.8k
4.07k (x1.07)
Test#1 (Memory)
1.34k
1.44k (x1.07)
TOTAL
12.96k
18.79k (x1.45)

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
T7250
P8400
Test#1 (Integers)
2.27k
2.43k (x1.07)
Test#2 (FP)
2.07k
5.4k (x2.61)
Test#3 (Generic, ZIP)
2.01k
2.13k (x1.06)
Test#1 (Memory)
1.22k
1.43k (x1.17)
TOTAL
7.57k
11.38k (x1.5)

Multithread

T7250

P8400
Test#1 (Integers)
4.51k
4.81k (x1.07)
Test#2 (FP)
4.09k
10.58k (x2.59)
Test#3 (Generic, ZIP)
3.9k
4.18k (x1.07)
Test#1 (Memory)
1.32k
1.45k (x1.1)
TOTAL
13.82k
21.02k (x1.52)

Performance/W
T7250
P8400
Test#1 (Integers)
129 points/W
193 points/W
Test#2 (FP)
117 points/W
423 points/W
Test#3 (Generic, ZIP)
111 points/W
167 points/W
Test#1 (Memory)
38 points/W
58 points/W
TOTAL
395 points/W
841 points/W

Performance/GHz
T7250
P8400
Test#1 (Integers)
1135 points/GHz
1071 points/GHz
Test#2 (FP)
1036 points/GHz
2383 points/GHz
Test#3 (Generic, ZIP)
1005 points/GHz
938 points/GHz
Test#1 (Memory)
611 points/GHz
629 points/GHz
TOTAL
3787 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