Celeron B840 vs Turion II Ultra M660
Aggregate performance score
Turion II Ultra M660 outperforms Celeron B840 by a small 5% based on our aggregate benchmark results.
Primary details
Comparing Turion II Ultra M660 and Celeron B840 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2777 | 2801 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Turion II Ultra | Intel Celeron |
| Power efficiency | 1.73 | 1.65 |
| Architecture codename | Caspian (2009) | Sandy Bridge (2011−2013) |
| Release date | 10 September 2009 (15 years ago) | 1 July 2011 (13 years ago) |
| Launch price (MSRP) | no data | $86 |
Detailed specifications
Turion II Ultra M660 and Celeron B840 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 | 2 | 2 |
| Boost clock speed | 2.7 GHz | 1.9 GHz |
| Bus type | no data | DMI 2.0 |
| Bus rate | 3600 MHz | 4 × 5 GT/s |
| Multiplier | no data | 19 |
| L1 cache | no data | 64K (per core) |
| L2 cache | 2 MB | 256K (per core) |
| L3 cache | no data | 2 MB (shared) |
| Chip lithography | 45 nm | 32 nm |
| Die size | no data | 131 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | no data | 504 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Turion II Ultra M660 and Celeron B840 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 (Uniprocessor) |
| Socket | Socket S1 (s1g3) 638-pin | G2 (988B) |
| Power consumption (TDP) | 35 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Turion II Ultra M660 and Celeron B840. 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 |
| FMA | - | + |
| PowerNow | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
Security technologies
Turion II Ultra M660 and Celeron B840 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Turion II Ultra M660 and Celeron B840 are enumerated here.
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Turion II Ultra M660 and Celeron B840. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3 |
| Maximum memory size | no data | 16 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 21.335 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel HD Graphics (Sandy Bridge) (650 - 950 MHz) |
Pros & cons summary
| Performance score | 0.64 | 0.61 |
| Recency | 10 September 2009 | 1 July 2011 |
| Chip lithography | 45 nm | 32 nm |
Turion II Ultra M660 has a 4.9% higher aggregate performance score.
Celeron B840, on the other hand, has an age advantage of 1 year, and a 40.6% more advanced lithography process.
Given the minimal performance differences, no clear winner can be declared between Turion II Ultra M660 and Celeron B840.
Should you still have questions on choice between Turion II Ultra M660 and Celeron B840, 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.
