Celeron M 585 vs Core 2 Extreme X7900
Primary details
Comparing Core 2 Extreme X7900 and Celeron M 585 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2703 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core 2 Extreme | Intel Celeron M |
| Power efficiency | 1.49 | no data |
| Architecture codename | Merom (2006−2008) | Merom (2006−2008) |
| Release date | 1 September 2007 (17 years ago) | 20 August 2008 (16 years ago) |
| Launch price (MSRP) | $851 | $70 |
Detailed specifications
Core 2 Extreme X7900 and Celeron M 585 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 | 2.8 GHz | no data |
| Boost clock speed | 2.8 GHz | 2.16 GHz |
| Bus rate | 800 MHz | 667 MHz |
| L1 cache | 128 KB | no data |
| L2 cache | 4 MB | 1 MB |
| L3 cache | 0 KB | no data |
| Chip lithography | 65 nm | 65 nm |
| Die size | 143 mm2 | 143 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| Number of transistors | no data | 291 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.1V-1.375V | no data |
Compatibility
Information on Core 2 Extreme X7900 and Celeron M 585 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 | no data |
| Socket | PPGA478 | PPGA478 |
| Power consumption (TDP) | 44 Watt | 31 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Extreme X7900 and Celeron M 585. 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 |
| AMT | + | no data |
| FSB parity | - | no data |
Security technologies
Core 2 Extreme X7900 and Celeron M 585 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 Extreme X7900 and Celeron M 585 are enumerated here.
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme X7900 and Celeron M 585. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1 | no data |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
Pros & cons summary
| Recency | 1 September 2007 | 20 August 2008 |
| Physical cores | 2 | 1 |
| Threads | 2 | 1 |
| Power consumption (TDP) | 44 Watt | 31 Watt |
Core 2 Extreme X7900 has 100% more physical cores and 100% more threads.
Celeron M 585, on the other hand, has an age advantage of 11 months, and 41.9% lower power consumption.
We couldn't decide between Core 2 Extreme X7900 and Celeron M 585. We've got no test results to judge.
Should you still have questions on choice between Core 2 Extreme X7900 and Celeron M 585, 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.
