Xeon D-1571 vs Core 2 Duo E4400
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3221 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Series | no data | Intel Xeon D |
| Power efficiency | 0.69 | no data |
| Designer | Intel | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Allendale (2006−2009) | Broadwell (2015−2019) |
| Release date | July 2007 (18 years ago) | 24 February 2016 (9 years ago) |
| Launch price (MSRP) | no data | $1,222 |
Detailed specifications
Core 2 Duo E4400 and Xeon D-1571 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 | 2 (Dual-core) | 16 (Hexadeca-Core) |
| Threads | 2 | 32 |
| Base clock speed | 2 GHz | 1.3 GHz |
| Boost clock speed | 2 GHz | 2.1 GHz |
| Bus type | no data | DMI 2.0 |
| Bus rate | 800 MHz | no data |
| Multiplier | no data | 13 |
| L1 cache | 64 KB | 64K (per core) |
| L2 cache | 2 MB | 256K (per core) |
| L3 cache | 0 KB | 1.5 MB (per core) |
| Chip lithography | 65 nm | 14 nm |
| Die size | 111 mm2 | 306.18 mm2 |
| Maximum core temperature | L2=61 °C, M0=73 °C | no data |
| Maximum case temperature (TCase) | no data | 80 °C |
| Number of transistors | 167 million | 3,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.5V | no data |
Compatibility
Information on Core 2 Duo E4400 and Xeon D-1571 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 | LGA775 | FCBGA1667 |
| Power consumption (TDP) | 65 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo E4400 and Xeon D-1571. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | + |
| TSX | - | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Demand Based Switching | - | no data |
| GPIO | no data | + |
| FSB parity | - | no data |
Security technologies
Core 2 Duo E4400 and Xeon D-1571 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Duo E4400 and Xeon D-1571 are enumerated here.
| VT-d | no data | + |
| VT-x | - | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E4400 and Xeon D-1571. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR4, DDR3 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 38.397 GB/s |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Core 2 Duo E4400 and Xeon D-1571.
| 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
| Physical cores | 2 | 16 |
| Threads | 2 | 32 |
| Chip lithography | 65 nm | 14 nm |
| Power consumption (TDP) | 65 Watt | 45 Watt |
Xeon D-1571 has 700% more physical cores and 1500% more threads, a 364.3% more advanced lithography process, and 44.4% lower power consumption.
We couldn't decide between Intel Core 2 Duo E4400 and Intel Xeon D-1571. We've got no test results to judge.
Note that Core 2 Duo E4400 is a desktop processor while Xeon D-1571 is a server/workstation one.
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