Xeon D-1813NT vs Core 2 Duo E6400
Aggregate performance score
Xeon D-1813NT outperforms Core 2 Duo E6400 by a whopping 892% based on our aggregate benchmark results.
Primary details
Comparing Core 2 Duo E6400 and Xeon D-1813NT processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2885 | 1235 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 0.71 | 10.97 |
| Architecture codename | Conroe (2006−2007) | no data |
| Release date | July 2006 (18 years ago) | 1 October 2023 (1 year ago) |
Detailed specifications
Core 2 Duo E6400 and Xeon D-1813NT 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) | 4 (Quad-Core) |
| Threads | 2 | 8 |
| Base clock speed | 2.13 GHz | 2.2 GHz |
| Boost clock speed | 2.13 GHz | 2.4 GHz |
| Bus rate | 1066 MHz | no data |
| L1 cache | 64 KB | no data |
| L2 cache | 2 MB | no data |
| L3 cache | 0 KB | 10240 KB |
| Chip lithography | 65 nm | no data |
| Die size | 143 mm2 | no data |
| Maximum core temperature | 61 °C | no data |
| Number of transistors | 291 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| VID voltage range | 0.85V-1.5V | no data |
Compatibility
Information on Core 2 Duo E6400 and Xeon D-1813NT 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 | LGA775,PLGA775 | FCBGA2227 |
| Power consumption (TDP) | 65 Watt | 42 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo E6400 and Xeon D-1813NT. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX-512 |
| AES-NI | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | no data | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | + |
| Idle States | + | no data |
| Thermal Monitoring | + | + |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
| Deep Learning Boost | - | + |
Security technologies
Core 2 Duo E6400 and Xeon D-1813NT technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
| SGX | no data | Yes with Intel® SPS |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Duo E6400 and Xeon D-1813NT are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E6400 and Xeon D-1813NT. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR4 |
| Maximum memory size | no data | 256 GB |
| Max memory channels | no data | 2 |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Core 2 Duo E6400 and Xeon D-1813NT.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 16 |
| USB revision | no data | 3.0 |
| Max number of SATA 6 Gb/s Ports | no data | 24 |
| Number of USB ports | no data | 4 |
| Integrated LAN | no data | + |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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
| Performance score | 0.50 | 4.96 |
| Physical cores | 2 | 4 |
| Threads | 2 | 8 |
| Power consumption (TDP) | 65 Watt | 42 Watt |
Xeon D-1813NT has a 892% higher aggregate performance score, 100% more physical cores and 300% more threads, and 54.8% lower power consumption.
The Xeon D-1813NT is our recommended choice as it beats the Core 2 Duo E6400 in performance tests.
Note that Core 2 Duo E6400 is a desktop processor while Xeon D-1813NT is a server/workstation one.
Should you still have questions on choice between Core 2 Duo E6400 and Xeon D-1813NT, ask them in Comments section, and we shall answer.
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