Intel Core 2 Duo T9400 vs Intel Core 2 Duo P8400 vs Intel Core 2 Duo T9550

Intel Core 2 Duo T9400

► remove Intel T9400

The Intel Core 2 Duo T9400 was a uppder middle class dual core CPU for laptops, at the time of introduction. It is similar to the Core 2 Duo P9500 except for the higher TDP of 35 versus 25 Watt).

Due to the relatively high clock speed and 6MB Level 2 cache, the T9400 offers enough performance for most demanding games (in 2009) and applications.

The T9400 uses a Penryn (Montevina Update) core that features 2 integer units, 1 floating point unit, 1 load unit, and 1 store unit in a 14-stages long pipeline. Due to the Wide Dynamic Execution Technology, the core is able to simultaneously execute up to four instructions.

The integrated Enhanced Speedstep is able to downclock the core dynamically to save power (in idle mode).

Intel Core 2 Duo P8400

► remove Intel P8400

The Intel Core 2 Duo P8400 is a dual core processor for laptops. It features 2.26 GHz and a shared level 2 cache of 3 MB. Due to the smaller cache (Core 2 Duo T-Models got usually 6 MB at this clock rate), the TDP is only 25 Watt (instead of the 35 Watt of the T-models).

The performance of the P8400 is on par with the fast Turion II Ultra with about 2.4 to 2.6 GHz. Modern demanding games like Supreme Commander may be limited by the CPU performance. High end gamers should choose a higher clocked Core 2 Duo (or Core i5 / i7).

The P8400 uses a Penryn (Montevina Update) core that features 2 integer units, 1 floating point unit, 1 load unit, and 1 store unit in a 14-stages long pipeline. Due to the Wide Dynamic Execution Technology, the core is able to simultaneously execute up to four instructions.

The integrated Enhanced Speedstep is able to downclock the core dynamically as low as 800 MHz to save power (in idle mode).

The Core 2 Duo P8400 can be used in a Socket P socket with 479 pins: Socket P / Micro Flip-Chip Pin Grid Array (Micro-FCPGA) requires 479-pin surface mount Zero Insertion Force (ZIF) socket (mPGA479M socket) or Micro Flip-Chip Ball Grid Array (Micro-FCBGA) for surface mount (479-ball)

Intel Core 2 Duo T9550

► remove Intel T9550

The Intel Core 2 Duo T9550 was the middle class dual core CPU for laptops at the time of introduction. It is similar to the Core 2 Duo P9600 except for the higher TDP of 35 versus 25 Watt.

Due to the relatively high clock speed and 6MB Level 2 cache, the T9550 offers enough performance for demanding games (in 2009) and applications. 

The T9550 uses a Penryn (Montevina Update) core that features 2 integer units, 1 floating point unit, 1 load unit, and 1 store unit in a 14-stages long pipeline. Due to the Wide Dynamic Execution Technology, the core is able to simultaneously execute up to four instructions.

The integrated Enhanced Speedstep is able to downclock the core dynamically to save power (in idle mode).

Intel Core 2 Duo T9400Intel Core 2 Duo P8400Intel Core 2 Duo T9550
Intel Core 2 DuoIntel Core 2 DuoIntel Core 2 Duo
PenrynPenrynPenryn
: Core 2 Duo Penryn
Intel Core 2 Duo T99003060 MHz2 / 2
Intel Core 2 Duo T98002920 MHz2 / 2
Intel Core 2 Duo P97002800 MHz2 / 2
Intel Core 2 Duo T96002800 MHz2 / 2
Intel Core 2 Duo P96002660 MHz2 / 2
Intel Core 2 Duo T95502660 MHz2 / 2
Intel Core 2 Duo T95002600 MHz2 / 2
Intel Core 2 Duo SP96002530 MHz2 / 2
Intel Core 2 Duo P95002530 MHz2 / 2
» Intel Core 2 Duo T94002530 MHz2 / 2
Intel Core 2 Duo P88002660 MHz2 / 2
Intel Core 2 Duo T93002500 MHz2 / 2
Intel Core 2 Duo P87002530 MHz2 / 2
Intel Core 2 Duo SP94002400 MHz2 / 2
Intel Core 2 Duo P86002400 MHz2 / 2
Intel Core 2 Duo T83002400 MHz2 / 2
Intel Core 2 Duo SP93002260 MHz2 / 2
Intel Core 2 Duo P84002260 MHz2 / 2
Intel Core 2 Duo P75702260 MHz2 / 2
Intel Core 2 Duo P75502260 MHz2 / 2
Intel Core 2 Duo T67702300 MHz2 / 2
Intel Core 2 Duo SL96002130 MHz2 / 2
Intel Core 2 Duo P74502130 MHz2 / 2
Intel Core 2 Duo T66702200 MHz2 / 2
Intel Core 2 Duo T66002200 MHz2 / 2
Intel Core 2 Duo T81002100 MHz2 / 2
Intel Core 2 Duo P73702000 MHz2 / 2
Intel Core 2 Duo P73502000 MHz2 / 2
Intel Core 2 Duo T65702100 MHz2 / 2
Intel Core 2 Duo T65002100 MHz2 / 2
Intel Core 2 Duo SL94001860 MHz2 / 2
Intel Core 2 Duo SL93801800 MHz2 / 2
Intel Core 2 Duo T64002000 MHz2 / 2
Intel Core 2 Duo SL93001600 MHz2 / 2
Intel Core 2 Duo SU96001600 MHz2 / 2
Intel Core 2 Duo SU94001400 MHz2 / 2
Intel Core 2 Duo SU73001300 MHz2 / 2
Intel Core 2 Duo SU93001200 MHz2 / 2
Intel Core 2 Duo T99003060 MHz2 / 2
Intel Core 2 Duo T98002920 MHz2 / 2
Intel Core 2 Duo P97002800 MHz2 / 2
Intel Core 2 Duo T96002800 MHz2 / 2
Intel Core 2 Duo P96002660 MHz2 / 2
Intel Core 2 Duo T95502660 MHz2 / 2
Intel Core 2 Duo T95002600 MHz2 / 2
Intel Core 2 Duo SP96002530 MHz2 / 2
Intel Core 2 Duo P95002530 MHz2 / 2
Intel Core 2 Duo T94002530 MHz2 / 2
Intel Core 2 Duo P88002660 MHz2 / 2
Intel Core 2 Duo T93002500 MHz2 / 2
Intel Core 2 Duo P87002530 MHz2 / 2
Intel Core 2 Duo SP94002400 MHz2 / 2
Intel Core 2 Duo P86002400 MHz2 / 2
Intel Core 2 Duo T83002400 MHz2 / 2
Intel Core 2 Duo SP93002260 MHz2 / 2
» Intel Core 2 Duo P84002260 MHz2 / 2
Intel Core 2 Duo P75702260 MHz2 / 2
Intel Core 2 Duo P75502260 MHz2 / 2
Intel Core 2 Duo T67702300 MHz2 / 2
Intel Core 2 Duo SL96002130 MHz2 / 2
Intel Core 2 Duo P74502130 MHz2 / 2
Intel Core 2 Duo T66702200 MHz2 / 2
Intel Core 2 Duo T66002200 MHz2 / 2
Intel Core 2 Duo T81002100 MHz2 / 2
Intel Core 2 Duo P73702000 MHz2 / 2
Intel Core 2 Duo P73502000 MHz2 / 2
Intel Core 2 Duo T65702100 MHz2 / 2
Intel Core 2 Duo T65002100 MHz2 / 2
Intel Core 2 Duo SL94001860 MHz2 / 2
Intel Core 2 Duo SL93801800 MHz2 / 2
Intel Core 2 Duo T64002000 MHz2 / 2
Intel Core 2 Duo SL93001600 MHz2 / 2
Intel Core 2 Duo SU96001600 MHz2 / 2
Intel Core 2 Duo SU94001400 MHz2 / 2
Intel Core 2 Duo SU73001300 MHz2 / 2
Intel Core 2 Duo SU93001200 MHz2 / 2
Intel Core 2 Duo T99003060 MHz2 / 2
Intel Core 2 Duo T98002920 MHz2 / 2
Intel Core 2 Duo P97002800 MHz2 / 2
Intel Core 2 Duo T96002800 MHz2 / 2
Intel Core 2 Duo P96002660 MHz2 / 2
» Intel Core 2 Duo T95502660 MHz2 / 2
Intel Core 2 Duo T95002600 MHz2 / 2
Intel Core 2 Duo SP96002530 MHz2 / 2
Intel Core 2 Duo P95002530 MHz2 / 2
Intel Core 2 Duo T94002530 MHz2 / 2
Intel Core 2 Duo P88002660 MHz2 / 2
Intel Core 2 Duo T93002500 MHz2 / 2
Intel Core 2 Duo P87002530 MHz2 / 2
Intel Core 2 Duo SP94002400 MHz2 / 2
Intel Core 2 Duo P86002400 MHz2 / 2
Intel Core 2 Duo T83002400 MHz2 / 2
Intel Core 2 Duo SP93002260 MHz2 / 2
Intel Core 2 Duo P84002260 MHz2 / 2
Intel Core 2 Duo P75702260 MHz2 / 2
Intel Core 2 Duo P75502260 MHz2 / 2
Intel Core 2 Duo T67702300 MHz2 / 2
Intel Core 2 Duo SL96002130 MHz2 / 2
Intel Core 2 Duo P74502130 MHz2 / 2
Intel Core 2 Duo T66702200 MHz2 / 2
Intel Core 2 Duo T66002200 MHz2 / 2
Intel Core 2 Duo T81002100 MHz2 / 2
Intel Core 2 Duo P73702000 MHz2 / 2
Intel Core 2 Duo P73502000 MHz2 / 2
Intel Core 2 Duo T65702100 MHz2 / 2
Intel Core 2 Duo T65002100 MHz2 / 2
Intel Core 2 Duo SL94001860 MHz2 / 2
Intel Core 2 Duo SL93801800 MHz2 / 2
Intel Core 2 Duo T64002000 MHz2 / 2
Intel Core 2 Duo SL93001600 MHz2 / 2
Intel Core 2 Duo SU96001600 MHz2 / 2
Intel Core 2 Duo SU94001400 MHz2 / 2
Intel Core 2 Duo SU73001300 MHz2 / 2
Intel Core 2 Duo SU93001200 MHz2 / 2
2530 MHz2260 MHz2660 MHz
106610661066
128 KB128 KB128 KB
6 MB3 MB6 MB
2 / 22 / 22 / 2
35 25 35
410 410 410
45 1.050V-1.162V45 1.05-1.1545 1.05-1.212V
107 mm2107 mm2107 mm2
105 °C105 °C105 °C
BGA479, PGA478Socket PBGA479, PGA478
Virtualization Technology (VT-x), Trusted Execution, Intel 64, Enhanced Speedstep, Execute Disable BitSSE4.1, Virtualization Technology, Execute Disable Bit, Enhanced Speedstep, Ehnaced Halt State (C1E), 64 Bit, Trusted Execution TechnologyVirtualization, Trusted Execution, Intel 64, Enhanced Speedstep (up to C6), ExBit, SSE4.1
$316 U.S.$209 U.S.$316 U.S.
Intel Core 2 Duo T9400Intel Core 2 Duo P8400Intel Core 2 Duo T9550

Cinebench R10 - Rendering Single 32Bit
min: 2713     avg: 2848     median: 2818 (29%)     max: 3207 Points
min: 2418     avg: 2527     median: 2497 (26%)     max: 2882 Points
min: 2911     avg: 2958     median: 2966 (30%)     max: 3001 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 5008     avg: 5341     median: 5267.5 (9%)     max: 6173 Points
min: 4507     avg: 4701     median: 4630 (8%)     max: 5314 Points
min: 5418     avg: 5530     median: 5577 (9%)     max: 5615 Points
wPrime 2.10 - 1024m *
100%
1 T9400 +
1641 seconds (19%)
111%
1 T9550 +
922 seconds (11%)
wPrime 2.10 - 32m *
min: 30.1     avg: 37.7     median: 31 (6%)     max: 52.061 seconds
34.2 seconds (7%)
29 seconds (6%)
3DMark 06 - CPU - CPU Score
min: 2026     avg: 2262     median: 2304 (15%)     max: 2349 Points
min: 1922     avg: 2030     median: 2036 (14%)     max: 2084 Points
min: 2347     avg: 2384     median: 2385 (16%)     max: 2417 Points
Super Pi mod 1.5 XS 1M - 1M *
min: 17.75     avg: 18.1     median: 18.1 (4%)     max: 18.548 Seconds
min: 21.746     avg: 22.1     median: 22 (5%)     max: 22.714 Seconds
min: 16     avg: 17     median: 17 (4%)     max: 17.91 Seconds
Super Pi mod 1.5 XS 2M - 2M *
min: 42.531     avg: 43.1     median: 43 (2%)     max: 44.024 Seconds
min: 50.65     avg: 51.5     median: 51.7 (2%)     max: 52.229 Seconds
min: 40     avg: 41.6     median: 42 (2%)     max: 42.84 Seconds
Super Pi Mod 1.5 XS 32M - 32M *
min: 1107.07     avg: 1150     median: 1164 (5%)     max: 1180 Seconds
1212 Seconds (5%)
min: 1059     avg: 1105     median: 1123 (5%)     max: 1131.98 Seconds
SiSoft Sandra Dhrystone (MIPS) - Dhrystone
23652 MIPS (11%)
21204 MIPS (10%)
min: 6820     avg: 17433     median: 20774 (10%)     max: 24706 MIPS
SiSoft Sandra Whetstone (MFLOPS) - Whetstone
17818 MFLOPS (14%)
15993 MFLOPS (12%)
min: 5870     avg: 14981     median: 19516 (15%)     max: 19556 MFLOPS
PCMark 05 - Standard 1024x768
min: 2293     avg: 5930     median: 6175 (39%)     max: 7555 Points
min: 3410     avg: 5117     median: 5201.5 (33%)     max: 6255 Points
min: 6414     avg: 6553     median: 6619 (42%)     max: 6625 Points
Windows Vista Experience Index - CPU
5.4 Points (77%)
5.2 Points (74%)
min: 3.9     avg: 5.1     median: 5.5 (79%)     max: 5.5 Points
3DMark Vantage - P CPU no PhysX 1280x1024
min: 3066     avg: 4502     median: 4892 (7%)     max: 5156 Points
min: 3518     avg: 4111     median: 4340 (6%)     max: 4475 Points
min: 5252     avg: 5399     median: 5424 (8%)     max: 5496 Points

Average Benchmarks Intel Core 2 Duo T9400 → 100% n=12

Average Benchmarks Intel Core 2 Duo P8400 → 93% n=12

Average Benchmarks Intel Core 2 Duo T9550 → 103% n=12

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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Redaktion, 2017-09- 8 (Update: 2017-09-11)