Intel Core i5-450M vs Intel Core 2 Duo T8300 vs Intel Core 2 Duo T9800
Intel Core i5-450M
► remove from comparisonThe Intel Core i5-450M is a dual-core laptop CPU and clocks (due to Turbo Boost) with max. 2.4 - 2.66 GHz. Both cores are based on the Nehalem (Westmere) micro-architecture and due to Hyperthreading the processor is able to work with 4 threads simultaneously. The performance of the i5 is in the mid-range. The i5-450M is similar to the Core i5-520M, but the 450M does not offer AES functions.
A feature of the new Core i5-450M is the integrated graphics card called GMA HD and memory controller. Both are on a separate die that is still manufactured in 45nm whereas the CPU die is already manufactured in the new 32nm process.
The performance of the i5 450M is on average faster than a Core 2 Duo T9500 and due to the Turbo Boost, single threaded applications run even better. Therefore, the Core i5-520M is as fast as high clocked Core 2 Duo CPUs and should handle most gaming and multimedia tasks well.
The integrated Intel Graphics Media Accelerator HD (GMA HD) graphics card is known to be clocked up to 500-766 MHz and should be clearly faster than the old GMA 4500MHD. A GeForce 9400M (ION) should still be a faster (especially as Nvidia and ATI cards have a better driver support than Intel up to now). According to rumors, the GMA core will also use the Turbo Mode regulate the clock speed.
The power consumption of 35 Watt TDP (max.) counts for the whole package and therefore it is clearly better than the 35 Watt TDP of the Core 2 Duo T-series (CPU alone). Due to the Turbo Boost, the Core i5 more likely uses the TDP under load than the older Core 2 Duo CPUs. Without any load, the i5 uses noticable less power.
Intel Core 2 Duo T8300
► remove from comparisonThe Intel Core 2 Duo T8300 was at the time of announcement a fast dual-core CPU for laptops with 3 MB level 2 cache. It is based on the Penryn core with all features enabled (but without the full 6MB level 2 cache). The later announced Core 2 Duo P7450 was cheaper and used less power.
Intel Core 2 Duo T9800
► remove from comparisonThe Intel Core 2 Duo T9800 was the top dual core CPU for laptops at the time of introduction. Later it was topped by the Core 2 Duo T9900 / X9100. Still the T9800 is a high end laptop CPU which is well suited for single and dual threaded applications.
Due to the high clock speed, the T9800 offers enough performance for demanding games (in 2009) and applications. On average, only faster dual cores (like the T9900 or fast Core i7) or Core i7 quad cores can be faster than the T9800.
The T9800 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 T9800 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 i5-450M | Intel Core 2 Duo T8300 | Intel Core 2 Duo T9800 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Series | Intel Core i5 | Intel Core 2 Duo | Intel Core 2 Duo | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Codename | Arrandale | Penryn | Penryn | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Series: Core 2 Duo Penryn |
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Clock | 2400 - 2660 MHz | 2400 MHz | 2920 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||
FSB | 2500 | 800 | 1066 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
L1 Cache | 128 KB | 128 KB | |||||||||||||||||||||||||||||||||||||||||||||||||||||
L2 Cache | 512 KB | 3 MB | 6 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||
L3 Cache | 3 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cores / Threads | 2 / 4 | 2 / 2 | 2 / 2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
TDP | 35 Watt | 35 Watt | 35 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Transistors | 382+177 Million | 410 Million | 410 Million | ||||||||||||||||||||||||||||||||||||||||||||||||||||
32 nm | 45 nm, 1-1.25V | 45 nm, 1-1.25 V | |||||||||||||||||||||||||||||||||||||||||||||||||||||
Die Size | 81+114 mm2 | 107 mm2 | 107 mm2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
max. Temp. | 105 °C | 105 °C | 105 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Socket | PGA988 | BGA479, PGA478 | Socket P (BGA479, PGA478) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Features | HD Graphics (500-766MHz), DDR3-800/1066 Memory Controller (max. 8 GB), Turbo Boost, Hyper-Threading, Virtualization VT-x, Intel 64, Idle States, Enhanced Speedstep, Execute Disable Bit, MMX, SSE (1, 2, 3, 3S, 4.1, 4.2) | Virtualization (VT-x), Intel 64, Idle States, Enhanced Speedstep, Execute Disable Bit | Virtualization (VT-x), Trusted Execution, Intel 64, Enhanced Speedstep, Execute Disable Bit | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Architecture | x86 | x86 | x86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Announced | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer | ark.intel.com | ark.intel.com | ark.intel.com | ||||||||||||||||||||||||||||||||||||||||||||||||||||
$241 U.S. | $530 U.S. |