Intel Core 2 Duo T9600 vs Intel Core i5-3439Y vs Intel Core 2 Duo P8400
Intel Core 2 Duo T9600
► remove from comparisonThe Intel Core 2 Duo T9600 is a high end dual core CPU for laptops (at the time of introduction). Compared to the faster T9900 it does not support the new power saving C1E state. The newer Core 2 Duo P9700 offers a similar performance but features a lower TDP of 28 Watt.
Due to the high clock speed, the T9600 offers enough performance for demanding games (in 2009) and applications.
The T9600 uses a Penryn 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 (in idle mode).
The Core 2 Duo T9600 can be used in a Socket P socket with 479 pins.
Intel Core i5-3439Y
► remove from comparisonThe Intel Core i5-3439Y is an ULV-processor for ultrabooks and tablets based on the Ivy Bridge architecture. Due to Hyperthreading, the two cores can handle up to four threads in parallel leading to better utilization of the CPU. Each core offers a base speed of 1.5 GHz but can dynamically increase clock rates with Turbo Boost up to 2.1 GHz (for 2 active cores) and 2.3 GHz (for 1 active core). As other dual core Core i5, it offers a 3 MB L3-Cache.
Ivy Bridge is an enhanced die shrink of the Sandy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm (versus 32nm Sandy Bridge CPUs) and are the first to introduce 3D transistors for increased energy efficiency when compared to similarly clocked Sandy Bridge processors. Other new features are integrated PCI Express 3.0 and DDR3(L)-1600 support.
The performance of the Core i5-3439Y is limited by the very low TDP. Therefore, the maximum turbo clocks are rarely achieved. Overall, the 3439Y should be a bit faster than the Core i3-3217U.
The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 350 MHz up to 850 MHz with Turbo Boost, delivering a performance comparable with an AMD Radeon HD 6520G.
The 3439Y is rated at a TDP of 13 W including graphics card and memory controller. If necessary, the TDP can be set to an even lower value of 10 W (cTDP Down). Therefore, the CPU is suited for tablets and ultrabooks.
Intel Core 2 Duo P8400
► remove from comparisonThe 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 T9600 | Intel Core i5-3439Y | Intel Core 2 Duo P8400 | ||||||||||||||||||||||||||||||||||||||||||||||||
Series | Intel Core 2 Duo | Intel Core i5 | Intel Core 2 Duo | ||||||||||||||||||||||||||||||||||||||||||||||||
Codename | Penryn | Ivy Bridge | Penryn | ||||||||||||||||||||||||||||||||||||||||||||||||
Series: Core 2 Duo Penryn |
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Clock | 2800 MHz | 1500 - 2300 MHz | 2260 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||
FSB | 1066 | 1066 | |||||||||||||||||||||||||||||||||||||||||||||||||
L2 Cache | 6 MB | 512 KB | 3 MB | ||||||||||||||||||||||||||||||||||||||||||||||||
Cores / Threads | 2 / 2 | 2 / 4 | 2 / 2 | ||||||||||||||||||||||||||||||||||||||||||||||||
TDP | 35 Watt | 13 Watt | 25 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||
Transistors | 410 Million | 410 Million | |||||||||||||||||||||||||||||||||||||||||||||||||
45 nm, 1.05-1.2125 V | 22 nm | 45 nm, 1.05-1.15 | |||||||||||||||||||||||||||||||||||||||||||||||||
Die Size | 107 mm2 | 107 mm2 | |||||||||||||||||||||||||||||||||||||||||||||||||
max. Temp. | 105 °C | 105 °C | 105 °C | ||||||||||||||||||||||||||||||||||||||||||||||||
Socket | Socket P (BGA479, PGA478) | BGA | Socket P | ||||||||||||||||||||||||||||||||||||||||||||||||
Architecture | x86 | x86 | x86 | ||||||||||||||||||||||||||||||||||||||||||||||||
$316 U.S. | $209 U.S. | ||||||||||||||||||||||||||||||||||||||||||||||||||
Announced | |||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer | ark.intel.com | ark.intel.com | ark.intel.com | ||||||||||||||||||||||||||||||||||||||||||||||||
L1 Cache | 128 KB | 128 KB | |||||||||||||||||||||||||||||||||||||||||||||||||
L3 Cache | 3 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||
Features | Turbo Boost 2.0, Hyper-Threading, Virtualization VT-x, VT-d, Trusted Execution, AES, Intel 64, Anti-Theft, My WiFi, Idle States, Enhanced SpeedStep, Thermal Monitorin, Execute Disable Bit | SSE4.1, Virtualization Technology, Execute Disable Bit, Enhanced Speedstep, Ehnaced Halt State (C1E), 64 Bit, Trusted Execution Technology | |||||||||||||||||||||||||||||||||||||||||||||||||
iGPU | Intel HD Graphics 4000 (350 - 850 MHz) |