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MagyarIntel Core 2 Duo T9300 vs Intel Core 2 Duo P8400
Intel Core 2 Duo T9300
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The Intel Core 2 Duo T9300 was a upper middle class dual core CPU for laptops, at the time of introduction. It is similar to the Core 2 Duo T9400 but features a slower clocked front side bus.
Due to the relatively high clock speed and 6MB Level 2 cache, the T9300 offers enough performance for most demanding games (in 2009) and applications.
The T9300 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
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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)
| Model | Intel Core 2 Duo T9300 | Intel Core 2 Duo P8400 |
| Series | Intel Core 2 Duo | Intel Core 2 Duo |
| Codename | Penryn | Penryn |
| Series: Core 2 Duo Penryn | ||
| Clock | 2500 MHz | 2260 MHz |
| FSB | 800 | 1066 |
| L1 Cache | 128 KB | 128 KB |
| L2 Cache | 6 MB | 3 MB |
| Cores / Threads | 2 / 2 | 2 / 2 |
| TDP | 35 Watt | 25 Watt |
| Transistors | 410 Million | 410 Million |
| 45 nm, 1-1.25V | 45 nm, 1.05-1.15 | |
| Die Size | 107 mm2 | 107 mm2 |
| max. Temp. | 105 °C | 105 °C |
| Socket | BGA479, PGA478 | Socket P |
| Features | Virtualization Technology (VT-x), Trusted Execution, Intel 64, Enhanced Speedstep, Execute Disable Bit | SSE4.1, Virtualization Technology, Execute Disable Bit, Enhanced Speedstep, Ehnaced Halt State (C1E), 64 Bit, Trusted Execution Technology |
| Architecture | x86 | x86 |
| $316 U.S. | $209 U.S. | |
| Announced | ||
| Manufacturer | ark.intel.com | ark.intel.com |
- Average benchmark values for this graphics card