Xeon E7-8837 vs Core 2 Duo E8400
Primary details
Comparing Core 2 Duo E8400 and Xeon E7-8837 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2668 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Series | no data | Intel Xeon E7 |
| Power efficiency | 1.07 | no data |
| Architecture codename | Wolfdale (2008−2010) | Westmere (2010−2011) |
| Release date | 1 January 2008 (16 years ago) | 5 April 2011 (13 years ago) |
| Launch price (MSRP) | no data | $2,280 |
Detailed specifications
Core 2 Duo E8400 and Xeon E7-8837 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) | 8 (Octa-Core) |
| Threads | 2 | 8 |
| Base clock speed | 3 GHz | 2.66 GHz |
| Boost clock speed | 3 GHz | 2.8 GHz |
| Bus type | no data | QPI |
| Bus rate | 1333 MHz | 6.4 GT/s |
| Multiplier | no data | 20 |
| L1 cache | 64 KB (per core) | 512 KB |
| L2 cache | 6 MB (shared) | 2 MB |
| L3 cache | 0 KB | 24 MB |
| Chip lithography | 45 nm | 32 nm |
| Die size | 104 mm2 | 513 mm2 |
| Maximum core temperature | no data | 69 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | 410 million | 2600 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.3625V | no data |
Compatibility
Information on Core 2 Duo E8400 and Xeon E7-8837 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 | 8 (Multiprocessor) |
| Socket | LGA775 | LGA1567 |
| Power consumption (TDP) | 65 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo E8400 and Xeon E7-8837. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | 1.0 |
| Hyper-Threading Technology | - | - |
| Idle States | + | no data |
| Thermal Monitoring | + | + |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
Security technologies
Core 2 Duo E8400 and Xeon E7-8837 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Xeon E7-8837 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Xeon E7-8837. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR3-800, DDR3-978, DDR3-1066, DDR3-1333, Speed-1066 |
| Maximum memory size | no data | 4 TB |
| Max memory channels | no data | 4 |
| Maximum memory bandwidth | no data | 34.113 GB/s |
| ECC memory support | - | + |
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 Duo E8400 and Xeon E7-8837.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 1 January 2008 | 5 April 2011 |
| Physical cores | 2 | 8 |
| Threads | 2 | 8 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 65 Watt | 130 Watt |
Core 2 Duo E8400 has 100% lower power consumption.
Xeon E7-8837, on the other hand, has an age advantage of 3 years, 300% more physical cores and 300% more threads, and a 40.6% more advanced lithography process.
We couldn't decide between Core 2 Duo E8400 and Xeon E7-8837. We've got no test results to judge.
Note that Core 2 Duo E8400 is a desktop processor while Xeon E7-8837 is a server/workstation one.
Should you still have questions on choice between Core 2 Duo E8400 and Xeon E7-8837, ask them in Comments section, and we shall answer.
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