Intel Core 2 Duo P8400 vs Intel Core 2 Duo T6400

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 T6400

► remove

The Intel Core 2 Duo T6400 is an entry level dual core processor for cheap laptops. It is based on the Penryn core but offers only 2 MB level 2 cache and a slow clock speed of 2 GHz. The performance should be sufficient for office and other casual tasks but high level gaming and HD video editing for example could be limited by the CPU performance.

Intel Core 2 Duo P8400Intel Core 2 Duo T6400
Intel Core 2 DuoIntel Core 2 Duo
PenrynPenryn
: Core 2 Duo Penryn
Intel Core 2 Duo T9900 compare3.06 GHz2 / 2
Intel Core 2 Duo T9800 compare2.92 GHz2 / 2
Intel Core 2 Duo P9700 compare2.8 GHz2 / 2
Intel Core 2 Duo T9600 compare2.8 GHz2 / 2
Intel Core 2 Duo P9600 compare2.66 GHz2 / 2
Intel Core 2 Duo T9550 compare2.66 GHz2 / 2
Intel Core 2 Duo T9500 compare2.6 GHz2 / 2
Intel Core 2 Duo SP9600 compare2.53 GHz2 / 2
Intel Core 2 Duo P9500 compare2.53 GHz2 / 2
Intel Core 2 Duo T9400 compare2.53 GHz2 / 2
Intel Core 2 Duo P8800 compare2.66 GHz2 / 2
Intel Core 2 Duo T9300 compare2.5 GHz2 / 2
Intel Core 2 Duo P8700 compare2.53 GHz2 / 2
Intel Core 2 Duo SP9400 compare2.4 GHz2 / 2
Intel Core 2 Duo P8600 compare2.4 GHz2 / 2
Intel Core 2 Duo T8300 compare2.4 GHz2 / 2
Intel Core 2 Duo SP9300 compare2.26 GHz2 / 2
» Intel Core 2 Duo P84002.26 GHz2 / 2
Intel Core 2 Duo P7570 compare2.26 GHz2 / 2
Intel Core 2 Duo P7550 compare2.26 GHz2 / 2
Intel Core 2 Duo T6770 compare2.3 GHz2 / 2
Intel Core 2 Duo SL9600 compare2.13 GHz2 / 2
Intel Core 2 Duo P7450 compare2.13 GHz2 / 2
Intel Core 2 Duo T6670 compare2.2 GHz2 / 2
Intel Core 2 Duo T6600 compare2.2 GHz2 / 2
Intel Core 2 Duo T8100 compare2.1 GHz2 / 2
Intel Core 2 Duo P7370 compare2 GHz2 / 2
Intel Core 2 Duo P7350 compare2 GHz2 / 2
Intel Core 2 Duo T6570 compare2.1 GHz2 / 2
Intel Core 2 Duo T6500 compare2.1 GHz2 / 2
Intel Core 2 Duo SL9400 compare1.86 GHz2 / 2
Intel Core 2 Duo SL9380 compare1.8 GHz2 / 2
Intel Core 2 Duo T64002 GHz2 / 2
Intel Core 2 Duo SL9300 compare1.6 GHz2 / 2
Intel Core 2 Duo SU9600 compare1.6 GHz2 / 2
Intel Core 2 Duo SU9400 compare1.4 GHz2 / 2
Intel Core 2 Duo SU7300 compare1.3 GHz2 / 2
Intel Core 2 Duo SU9300 compare1.2 GHz2 / 2
Intel Core 2 Duo T9900 compare3.06 GHz2 / 2
Intel Core 2 Duo T9800 compare2.92 GHz2 / 2
Intel Core 2 Duo P9700 compare2.8 GHz2 / 2
Intel Core 2 Duo T9600 compare2.8 GHz2 / 2
Intel Core 2 Duo P9600 compare2.66 GHz2 / 2
Intel Core 2 Duo T9550 compare2.66 GHz2 / 2
Intel Core 2 Duo T9500 compare2.6 GHz2 / 2
Intel Core 2 Duo SP9600 compare2.53 GHz2 / 2
Intel Core 2 Duo P9500 compare2.53 GHz2 / 2
Intel Core 2 Duo T9400 compare2.53 GHz2 / 2
Intel Core 2 Duo P8800 compare2.66 GHz2 / 2
Intel Core 2 Duo T9300 compare2.5 GHz2 / 2
Intel Core 2 Duo P8700 compare2.53 GHz2 / 2
Intel Core 2 Duo SP9400 compare2.4 GHz2 / 2
Intel Core 2 Duo P8600 compare2.4 GHz2 / 2
Intel Core 2 Duo T8300 compare2.4 GHz2 / 2
Intel Core 2 Duo SP9300 compare2.26 GHz2 / 2
Intel Core 2 Duo P84002.26 GHz2 / 2
Intel Core 2 Duo P7570 compare2.26 GHz2 / 2
Intel Core 2 Duo P7550 compare2.26 GHz2 / 2
Intel Core 2 Duo T6770 compare2.3 GHz2 / 2
Intel Core 2 Duo SL9600 compare2.13 GHz2 / 2
Intel Core 2 Duo P7450 compare2.13 GHz2 / 2
Intel Core 2 Duo T6670 compare2.2 GHz2 / 2
Intel Core 2 Duo T6600 compare2.2 GHz2 / 2
Intel Core 2 Duo T8100 compare2.1 GHz2 / 2
Intel Core 2 Duo P7370 compare2 GHz2 / 2
Intel Core 2 Duo P7350 compare2 GHz2 / 2
Intel Core 2 Duo T6570 compare2.1 GHz2 / 2
Intel Core 2 Duo T6500 compare2.1 GHz2 / 2
Intel Core 2 Duo SL9400 compare1.86 GHz2 / 2
Intel Core 2 Duo SL9380 compare1.8 GHz2 / 2
» Intel Core 2 Duo T64002 GHz2 / 2
Intel Core 2 Duo SL9300 compare1.6 GHz2 / 2
Intel Core 2 Duo SU9600 compare1.6 GHz2 / 2
Intel Core 2 Duo SU9400 compare1.4 GHz2 / 2
Intel Core 2 Duo SU7300 compare1.3 GHz2 / 2
Intel Core 2 Duo SU9300 compare1.2 GHz2 / 2
2260 MHz2000 MHz
1066800
128 KB
3 MB2 MB
2 / 22 / 2
25 35
410
45 1.05-1.1545
107 mm2
105 °C105 °C
Socket PPGA478
SSE4.1, Virtualization Technology, Execute Disable Bit, Enhanced Speedstep, Ehnaced Halt State (C1E), 64 Bit, Trusted Execution TechnologyMMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), IDA (Intel Dynamic Acceleration)
Architecturex86x86
$209 U.S.
Intel Core 2 Duo P8400Intel Core 2 Duo T6400

Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 2418     avg: 2527     median: 2497 (26%)     max: 2882
min: 2082     avg: 2115     median: 2115 (22%)     max: 2154
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 4507     avg: 4701     median: 4630 (8%)     max: 5314
min: 3704     avg: 3963     median: 4005 (7%)     max: 4078
wPrime 2.10 - wPrime 2.0 32m *
34.2 s (7%)
39.4 s (8%)
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 T6400 +
1249 s (15%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 1922     avg: 2030     median: 2036 (11%)     max: 2084 Points
min: 1711     avg: 1764     median: 1767.5 (10%)     max: 1819 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 21.746     avg: 22.1     median: 22 (5%)     max: 22.714 s
min: 26     avg: 28.8     median: 26.5 (6%)     max: 34 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 50.65     avg: 51.5     median: 51.7 (2%)     max: 52.229 s
min: 61     avg: 64     median: 64 (3%)     max: 67 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
1212 s (5%)
min: 1368     avg: 1532     median: 1531.5 (7%)     max: 1695 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
21204 MIPS (10%)
min: 18396     avg: 18438     median: 18437.5 (9%)     max: 18479 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
15993 MFLOPS (12%)
min: 14630     avg: 14670     median: 14670 (11%)     max: 14710 MFLOPS
PCMark 05 - PCMark 05 - Standard
min: 3410     avg: 5117     median: 5201.5 (33%)     max: 6255 Points
min: 4479     avg: 5038     median: 4916 (31%)     max: 6001 Points
Windows Vista Experience Index - Windows Vista Leistungsindex - Prozessor
5.2 Points (74%)
4.9 Points (70%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 3518     avg: 4111     median: 4340 (5%)     max: 4475 Points
3909 Points (5%)

Average Benchmarks Intel Core 2 Duo P8400 → 100% n=12

Average Benchmarks Intel Core 2 Duo T6400 → 93% 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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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)