Opteron 840 vs Core 2 Duo E6300
Primary details
Comparing Core 2 Duo E6300 and Opteron 840 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Architecture codename | Conroe (2006−2007) | SledgeHammer (2003−2005) |
| Release date | July 2006 (18 years ago) | September 2003 (21 year ago) |
Detailed specifications
Core 2 Duo E6300 and Opteron 840 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) | 1 (Single-Core) |
| Threads | 2 | 1 |
| Base clock speed | 1.86 GHz | no data |
| Boost clock speed | 1.87 GHz | 1.4 GHz |
| Bus rate | 1066 MHz | no data |
| L1 cache | 64 KB | 128 KB |
| L2 cache | 2 MB | 1 MB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 65 nm | 130 nm |
| Die size | 143 mm2 | 193 mm2 |
| Maximum core temperature | 61 °C | no data |
| Number of transistors | 291 million | 106 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.5V | no data |
Compatibility
Information on Core 2 Duo E6300 and Opteron 840 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 |
| Socket | LGA775,PLGA775 | 940 |
| Power consumption (TDP) | 65 Watt | 85 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo E6300 and Opteron 840. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
Security technologies
Core 2 Duo E6300 and Opteron 840 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Duo E6300 and Opteron 840 are enumerated here.
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E6300 and Opteron 840. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | no data |
Pros & cons summary
| Physical cores | 2 | 1 |
| Threads | 2 | 1 |
| Chip lithography | 65 nm | 130 nm |
| Power consumption (TDP) | 65 Watt | 85 Watt |
Core 2 Duo E6300 has 100% more physical cores and 100% more threads, a 100% more advanced lithography process, and 30.8% lower power consumption.
We couldn't decide between Core 2 Duo E6300 and Opteron 840. We've got no test results to judge.
Note that Core 2 Duo E6300 is a desktop processor while Opteron 840 is a server/workstation one.
Should you still have questions on choice between Core 2 Duo E6300 and Opteron 840, ask them in Comments section, and we shall answer.
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