Celeron M U3400 vs Core 2 Quad Q8400
Primary details
Comparing Core 2 Quad Q8400 and Celeron M U3400 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2266 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Celeron M |
| Power efficiency | 1.30 | no data |
| Architecture codename | Yorkfield (2007−2009) | Arrandale (2010−2011) |
| Release date | 19 April 2009 (15 years ago) | 24 May 2010 (14 years ago) |
Detailed specifications
Core 2 Quad Q8400 and Celeron M U3400 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 2 (Dual-core) |
| Threads | 4 | 2 |
| Base clock speed | 2.66 GHz | no data |
| Boost clock speed | 0.67 GHz | 1.06 GHz |
| Bus rate | 1333 MHz | 2500 MHz |
| L1 cache | 64 KB (per core) | no data |
| L2 cache | 4 MB (shared) | 512 KB |
| L3 cache | 0 KB | 2 MB |
| Chip lithography | 45 nm | 32 nm |
| Die size | 2x 82 mm2 | 81+114 mm2 |
| Maximum core temperature | no data | 105 °C |
| Maximum case temperature (TCase) | 71 °C | no data |
| Number of transistors | 456 million | 382+177 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.3625V | no data |
Compatibility
Information on Core 2 Quad Q8400 and Celeron M U3400 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | no data |
| Socket | FCLGA775,LGA775 | BGA1288 |
| Power consumption (TDP) | 95 Watt | 18 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad Q8400 and Celeron M U3400. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | no data | + |
| Demand Based Switching | - | no data |
| Fast Memory Access | no data | + |
| FSB parity | - | no data |
Security technologies
Core 2 Quad Q8400 and Celeron M U3400 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Quad Q8400 and Celeron M U3400 are enumerated here.
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400 and Celeron M U3400. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | no data |
Peripherals
Specifications and connection of peripherals supported by Core 2 Quad Q8400 and Celeron M U3400.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 19 April 2009 | 24 May 2010 |
| Physical cores | 4 | 2 |
| Threads | 4 | 2 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 95 Watt | 18 Watt |
Core 2 Quad Q8400 has 100% more physical cores and 100% more threads.
Celeron M U3400, on the other hand, has an age advantage of 1 year, a 40.6% more advanced lithography process, and 427.8% lower power consumption.
We couldn't decide between Core 2 Quad Q8400 and Celeron M U3400. We've got no test results to judge.
Note that Core 2 Quad Q8400 is a desktop processor while Celeron M U3400 is a notebook one.
Should you still have questions on choice between Core 2 Quad Q8400 and Celeron M U3400, ask them in Comments section, and we shall answer.
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