Xeon D-1581 vs i7-2740QM
Primary details
Comparing Core i7-2740QM and Xeon D-1581 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 882 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | Intel Core i7 | Intel Xeon D |
| Power efficiency | no data | 12.18 |
| Architecture codename | Sandy Bridge (2011−2013) | Broadwell (2015−2019) |
| Release date | 4 September 2011 (13 years ago) | 24 February 2016 (8 years ago) |
Detailed specifications
Core i7-2740QM and Xeon D-1581 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) | 16 (Hexadeca-Core) |
| Threads | 8 | 32 |
| Base clock speed | no data | 1.8 GHz |
| Boost clock speed | 2.3 GHz | 2.4 GHz |
| Bus type | DMI 2.0 | DMI 2.0 |
| Bus rate | 4 × 5 GT/s | no data |
| Multiplier | 23 | 18 |
| L1 cache | 256 KB | 1 MB |
| L2 cache | 1 MB | 4 MB |
| L3 cache | 6 MB | 24 MB |
| Chip lithography | 32 nm | 14 nm |
| Die size | 216 mm2 | 306.18 mm2 |
| Maximum case temperature (TCase) | no data | 80 °C |
| Number of transistors | 1160 Million | 4700 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core i7-2740QM and Xeon D-1581 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 (Uniprocessor) | 1 (Uniprocessor) |
| Socket | Socket G2 | FCBGA1667 |
| Power consumption (TDP) | 45 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-2740QM and Xeon D-1581. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX2 |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| GPIO | no data | + |
| Status | no data | Launched |
Security technologies
Core i7-2740QM and Xeon D-1581 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-2740QM and Xeon D-1581 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-2740QM and Xeon D-1581. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1600 | DDR4, DDR3 |
| Maximum memory size | 32 GB | 128 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 25.598 GB/s | 34.124 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 3000 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i7-2740QM and Xeon D-1581.
| PCIe version | no data | 2.0/3.0 |
| PCI Express lanes | no data | 24 |
| USB revision | no data | 2.0/3.0 |
| Total number of SATA ports | no data | 6 |
| Number of USB ports | no data | 8 |
| Integrated LAN | no data | + |
| UART | no data | + |
Pros & cons summary
| Recency | 4 September 2011 | 24 February 2016 |
| Physical cores | 4 | 16 |
| Threads | 8 | 32 |
| Chip lithography | 32 nm | 14 nm |
| Power consumption (TDP) | 45 Watt | 65 Watt |
i7-2740QM has 44.4% lower power consumption.
Xeon D-1581, on the other hand, has an age advantage of 4 years, 300% more physical cores and 300% more threads, and a 128.6% more advanced lithography process.
We couldn't decide between Core i7-2740QM and Xeon D-1581. We've got no test results to judge.
Be aware that Core i7-2740QM is a notebook processor while Xeon D-1581 is a server/workstation one.
Should you still have questions on choice between Core i7-2740QM and Xeon D-1581, ask them in Comments section, and we shall answer.
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