Pentium 4 HT 3.40 vs Core 2 Quad Q8400s
Primary details
Comparing Core 2 Quad Q8400s and Pentium 4 HT 3.40 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Yorkfield (2007−2009) | Northwood (2001−2004) |
| Release date | April 2009 (15 years ago) | February 2004 (20 years ago) |
| Current price | $99 | $100 |
Detailed specifications
Core 2 Quad Q8400s and Pentium 4 HT 3.40 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 | 4 (Quad-Core) | 1 (Single-Core) |
| Threads | 4 | 2 |
| Base clock speed | 2.66 GHz | no data |
| Boost clock speed | 2.67 GHz | 3.4 GHz |
| L1 cache | 64K (per core) | 8 KB |
| L2 cache | 4 MB (shared) | 512 KB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 45 nm | 130 nm |
| Die size | 2x 81 mm2 | 131 mm2 |
| Maximum core temperature | 76 °C | no data |
| Maximum case temperature (TCase) | 76 °C | 68 °C |
| Number of transistors | 456 million | 55 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
| VID voltage range | 0.85V-1.3625V | no data |
Compatibility
Information on Core 2 Quad Q8400s and Pentium 4 HT 3.40 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 | FCLGA775,LGA775 | 478 |
| Power consumption (TDP) | 65 Watt | 89 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad Q8400s and Pentium 4 HT 3.40. You'll probably need this information if you require some particular technology.
| AES-NI | - | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | no data |
| Demand Based Switching | - | no data |
| Status | Discontinued | no data |
Security technologies
Core 2 Quad Q8400s and Pentium 4 HT 3.40 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 Quad Q8400s and Pentium 4 HT 3.40 are enumerated here.
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400s and Pentium 4 HT 3.40. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR1, DDR2 |
Pros & cons summary
| Physical cores | 4 | 1 |
| Threads | 4 | 2 |
| Chip lithography | 45 nm | 130 nm |
| Power consumption (TDP) | 65 Watt | 89 Watt |
We couldn't decide between Core 2 Quad Q8400s and Pentium 4 HT 3.40. We've got no test results to judge.
Should you still have questions on choice between Core 2 Quad Q8400s and Pentium 4 HT 3.40, ask them in Comments section, and we shall answer.
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