Pentium D 840 vs Pentium Extreme Edition 965
Primary details
Comparing Pentium Extreme Edition 965 and Pentium D 840 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2774 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 0.45 | no data |
| Architecture codename | Presler (2005−2007) | Smithfield (2005) |
| Release date | 26 March 2006 (18 years ago) | May 2005 (19 years ago) |
| Launch price (MSRP) | $999 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium Extreme Edition 965 and Pentium D 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) | 2 (Dual-core) |
| Threads | 4 | 2 |
| Base clock speed | 3.733 GHz | 3.2 GHz |
| Boost clock speed | 0.73 GHz | 3.2 GHz |
| L1 cache | 16 KB (per core) | 28 KB |
| L2 cache | 2 MB (per core) | 2 MB |
| L3 cache | no data | 0 KB |
| Chip lithography | 65 nm | 90 nm |
| Die size | 2x 81 mm2 | 206 mm2 |
| Maximum core temperature | no data | 70 °C |
| Maximum case temperature (TCase) | 67 °C | no data |
| Number of transistors | 376 million | 169 million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | + | - |
| VID voltage range | no data | 1.2V-1.4V |
Compatibility
Information on Pentium Extreme Edition 965 and Pentium D 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 | 2 |
| Socket | 775 | PLGA775 |
| Power consumption (TDP) | 130 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium Extreme Edition 965 and Pentium D 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 | + |
| Demand Based Switching | no data | - |
| PAE | no data | 32 Bit |
| FSB parity | no data | - |
Security technologies
Pentium Extreme Edition 965 and Pentium D 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 Pentium Extreme Edition 965 and Pentium D 840 are enumerated here.
| VT-d | no data | - |
| VT-x | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium Extreme Edition 965 and Pentium D 840. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 Depends on motherboard | DDR1, DDR2, DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | no data |
Pros & cons summary
| Threads | 4 | 2 |
| Chip lithography | 65 nm | 90 nm |
Pentium Extreme Edition 965 has 100% more threads, and a 38.5% more advanced lithography process.
We couldn't decide between Pentium Extreme Edition 965 and Pentium D 840. We've got no test results to judge.
Should you still have questions on choice between Pentium Extreme Edition 965 and Pentium D 840, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
