Celeron U3600 vs i7-940XM
Primary details
Comparing Core i7-940XM and Celeron U3600 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2191 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core i7 | Intel Celeron |
| Architecture codename | Clarksfield (2009−2010) | Westmere (2010−2011) |
| Release date | 20 June 2010 (14 years ago) | 11 January 2011 (13 years ago) |
| Launch price (MSRP) | $1,096 | no data |
Detailed specifications
Core i7-940XM and Celeron U3600 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 | 8 | 2 |
| Base clock speed | 2.13 GHz | 1.2 GHz |
| Boost clock speed | 3.33 GHz | 0.1 GHz |
| Bus type | no data | DMI 1.0 |
| Bus rate | 2500 MHz | 1 × 2.5 GT/s |
| Multiplier | no data | 9 |
| L1 cache | 64 KB (per core) | 128 KB |
| L2 cache | 256 KB (per core) | 512 KB |
| L3 cache | 8 MB (shared) | 2 MB |
| Chip lithography | 45 nm | 32 nm |
| Die size | 296 mm2 | 81 mm2 |
| Maximum core temperature | 100 °C | 105 °C |
| Number of transistors | 774 million | 382 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i7-940XM and Celeron U3600 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 | 1 (Uniprocessor) |
| Socket | FCPGA988,PGA988 | BGA1288 |
| Power consumption (TDP) | 55 Watt | 18 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-940XM and Celeron U3600. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | no data |
| FMA | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | + | - |
| Hyper-Threading Technology | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | no data | + |
| Demand Based Switching | - | no data |
| PAE | 36 Bit | 36 Bit |
| FDI | no data | + |
| Fast Memory Access | no data | + |
| Status | Discontinued | Discontinued |
Security technologies
Core i7-940XM and Celeron U3600 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-940XM and Celeron U3600 are enumerated here.
| VT-d | + | - |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-940XM and Celeron U3600. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1066, DDR3-1333 | DDR3-800 |
| Maximum memory size | 8 GB | 8 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 21 GB/s | 12.799 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | None | Intel® HD Graphics for Previous Generation Intel® Processors |
| Clear Video | no data | + |
| Graphics max frequency | no data | 500 MHz |
Graphics interfaces
Available interfaces and connections of Core i7-940XM and Celeron U3600 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Core i7-940XM and Celeron U3600.
| PCIe version | 2 | 2.0 |
| PCI Express lanes | 16 | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Recency | 20 June 2010 | 11 January 2011 |
| Physical cores | 4 | 2 |
| Threads | 8 | 2 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 55 Watt | 18 Watt |
i7-940XM has 100% more physical cores and 300% more threads.
Celeron U3600, on the other hand, has an age advantage of 6 months, a 40.6% more advanced lithography process, and 205.6% lower power consumption.
We couldn't decide between Core i7-940XM and Celeron U3600. We've got no test results to judge.
Should you still have questions on choice between Core i7-940XM and Celeron U3600, ask them in Comments section, and we shall answer.
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