Pentium 4 HT 531 vs Athlon X2 QL-66
Primary details
Comparing Athlon X2 QL-66 and Pentium 4 HT 531 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 | Laptop | Desktop processor |
| Series | 2x AMD Athlon | no data |
| Architecture codename | Lion (2008−2009) | Prescott (2001−2005) |
| Release date | 1 September 2009 (15 years ago) | June 2005 (19 years ago) |
Detailed specifications
Athlon X2 QL-66 and Pentium 4 HT 531 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 | 2 |
| Boost clock speed | 2.2 GHz | 3 GHz |
| Bus rate | 3600 MHz | no data |
| L1 cache | 256 KB | 16 KB |
| L2 cache | 1 MB | 1 MB |
| L3 cache | no data | 0 KB |
| Chip lithography | 65 nm | 90 nm |
| Die size | no data | 109 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 125 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Athlon X2 QL-66 and Pentium 4 HT 531 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 | no data | 1 |
| Socket | S1g2 | 775 |
| Power consumption (TDP) | 35 Watt | 84 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon X2 QL-66 and Pentium 4 HT 531. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization | no data |
| PowerNow | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon X2 QL-66 and Pentium 4 HT 531. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR1, DDR2, DDR3 |
Pros & cons summary
| Physical cores | 2 | 1 |
| Chip lithography | 65 nm | 90 nm |
| Power consumption (TDP) | 35 Watt | 84 Watt |
Athlon X2 QL-66 has 100% more physical cores, a 38.5% more advanced lithography process, and 140% lower power consumption.
We couldn't decide between Athlon X2 QL-66 and Pentium 4 HT 531. We've got no test results to judge.
Be aware that Athlon X2 QL-66 is a notebook processor while Pentium 4 HT 531 is a desktop one.
Should you still have questions on choice between Athlon X2 QL-66 and Pentium 4 HT 531, 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.
