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Core 2 Duo P8400


Description
The Core 2 Duo P8400 is a cpu manufactured by Intel that was released on July 2008. This model has 2 Peryn-3M cores , runs at 2267 MHz as base frequency and has a a thermal design power of 25 W.

The P8400 has 2x32 kB of cache L1, 3072 kB of cache L2 and 0 kB of cache L3.

Specs
Official name
Intel(R) Core(TM)2 Duo CPU P8400 @ 2.26GHz
CPUID
10676
Core
Peryn-3M
Architecture
Base frecuency
2.267 GHz
Boost frecuency
2.267 GHz
Socket
Socket P
Cores/Threads
2/2
TDP
25 W
Cache L1 (d+i)
2x32 kB
Cache L2
3072 kB
Cache L3
0 kB
Release date
July 2008

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
Multithread
Test#1 (Integers)
1779
3527 (x2.0)
Test#2 (FP)
4949
9750 (x2.0)
Test#3 (Generic, ZIP)
2078
4071 (x2.0)
Test#1 (Memory)
1438
1439 (x1.0)
TOTAL
10244
18787 (x1.8)

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
Multithread
Test#1 (Integers)
2428
4813 (x2.0)
Test#2 (FP)
5402
10581 (x2.0)
Test#3 (Generic, ZIP)
2128
4176 (x2.0)
Test#1 (Memory)
1426
1449 (x1.0)
TOTAL
11384
21019 (x1.8)

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) [% vs time]

grafica bm.hardlimit.com


Test#2 (FP) [% vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [% vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [% 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) [% vs time]

grafica bm.hardlimit.coma


Test#2 (FP) [% vs time]

grafica bm.hardlimit.coma


Test#3 (Generic, ZIP) [% vs time]

grafica bm.hardlimit.coma


Test#1 (Memory) [% vs time]

grafica bm.hardlimit.coma

Similar CPUs to Core 2 Duo P8400
Intel Core 2 Duo P8400 (This model)
 Mode FPU monothread  [10244 points]
 Mode FPU multithread  [18787 points]
 Mode SSE monothread  [11384 points]
 Mode SSE multithread  [21019 points]
 Mode FPU monothread  [10102 points -1.38%]
 Mode FPU multithread  [18576 points -1.12%]
 Mode SSE monothread  [11151 points -2.05%]
 Mode SSE multithread  [20628 points -1.86%]
 Mode FPU monothread  [11318 points +10.49%]
 Mode FPU multithread  [22908 points +21.94%]
 Mode AVX monothread  [16147 points +41.83%]
 Mode AVX multithread  [35142 points +67.19%]
 Mode FPU monothread  [7104 points -30.65%]
 Mode FPU multithread  [13060 points -30.48%]
 Mode SSE monothread  [7554 points -33.64%]
 Mode SSE multithread  [13889 points -33.92%]
 Mode FPU monothread  [10991 points +7.30%]
 Mode FPU multithread  [20833 points +10.89%]
 Mode SSE monothread  [12065 points +5.98%]
 Mode SSE multithread  [23034 points +9.59%]
 Mode FPU monothread  [7236 points -29.37%]
 Mode FPU multithread  [13262 points -29.41%]
 Mode SSE monothread  [7667 points -32.65%]
 Mode SSE multithread  [14174 points -32.57%]
 Mode FPU monothread  [6009 points -41.34%]
 Mode FPU multithread  [12958 points -31.03%]
 Mode SSE monothread  [8049 points -29.29%]
 Mode SSE multithread  [14908 points -29.08%]
 Mode FPU monothread  [7142 points -30.28%]
 Mode FPU multithread  [12959 points -31.02%]
 Mode SSE monothread  [7574 points -33.47%]
 Mode SSE multithread  [13822 points -34.24%]
 Mode FPU monothread  [12831 points +25.26%]
 Mode FPU multithread  [16809 points -10.53%]
 Mode SSE monothread  [19239 points +69.00%]
 Mode SSE multithread  [24556 points +16.83%]
 Mode FPU monothread  [9332 points -8.90%]
 Mode FPU multithread  [16519 points -12.07%]
 Mode SSE monothread  [10344 points -9.13%]
 Mode SSE multithread  [19076 points -9.24%]
 Mode FPU monothread  [5775 points -43.62%]
 Mode FPU multithread  [22076 points +17.50%]
 Mode SSE monothread  [9229 points -18.93%]
 Mode SSE multithread  [31466 points +49.70%]
          
FPU mode comparison

Monothread integers operations
Modelo
Puntuación
Intel Core 2 Duo P8400
1779
This model
1779 [-0.02%]
1745 [-1.92%]

Multithread integers operations
Modelo
Puntuación
Intel Core 2 Duo P8400
3527
This model
2982 [-15.47%]

Monothread floating point operations
Modelo
Puntuación
Intel Core 2 Duo P8400
4949
This model
4384 [-11.42%]
3951 [-20.16%]

Multithread floating point operations
Modelo
Puntuación
Intel Core 2 Duo P8400
9750
This model
9260 [-5.02%]
8546 [-12.35%]

Monothread generic test (Zip compression)
Modelo
Puntuación
Intel Core 2 Duo P8400
2078
This model

Multithread generic test (Zip compression)
Modelo
Puntuación
Intel Core 2 Duo P8400
4071
This model
3905 [-4.08%]

Monothread memory performance
Modelo
Puntuación
Intel Core 2 Duo P8400
1438
This model

Multithread memory performance
Modelo
Puntuación
1740 [20.93%]
Intel Core 2 Duo P8400
1439
This model
          
SSE mode comparison

Monothread integers operations
Modelo
Puntuación
Intel Core 2 Duo P8400
2428
This model
2306 [-5.05%]

Multithread integers operations
Modelo
Puntuación
Intel Core 2 Duo P8400
4813
This model
4706 [-2.23%]

Monothread floating point operations
Modelo
Puntuación
Intel Core 2 Duo P8400
5402
This model

Multithread floating point operations
Modelo
Puntuación
11873 [12.21%]
Intel Core 2 Duo P8400
10581
This model
10213 [-3.48%]
9779 [-7.58%]

Monothread generic test (Zip compression)
Modelo
Puntuación
Intel Core 2 Duo P8400
2128
This model
2042 [-4.02%]

Multithread generic test (Zip compression)
Modelo
Puntuación
Intel Core 2 Duo P8400
4176
This model

Monothread memory performance
Modelo
Puntuación
Intel Core 2 Duo P8400
1426
This model
1426 [-0.03%]
1272 [-10.78%]

Multithread memory performance
Modelo
Puntuación
1567 [8.17%]
Intel Core 2 Duo P8400
1449
This model

Hardlimit Benchmark Central - Ver. 3.7.8