A6-4455M vs Turion II Ultra M660
Aggregate performance score
Turion II Ultra M660 outperforms A6-4455M by a significant 24% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3106 | 3201 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Turion II Ultra | AMD A-Series |
| Power efficiency | 0.69 | 1.14 |
| Designer | AMD | AMD |
| Architecture codename | Caspian (2009) | Trinity (2012−2013) |
| Release date | 10 September 2009 (16 years ago) | 15 May 2012 (13 years ago) |
Detailed specifications
Turion II Ultra M660 and A6-4455M 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 |
| Base clock speed | no data | 2.1 GHz |
| Boost clock speed | 2.7 GHz | 2.6 GHz |
| Bus rate | 3600 MHz | no data |
| L1 cache | no data | 92 KB |
| L2 cache | 2 MB | 2 MB (shared) |
| L3 cache | no data | 0 KB |
| Chip lithography | 45 nm | 32 nm |
| Die size | no data | 246 mm2 |
| Maximum case temperature (TCase) | no data | 100 °C |
| Number of transistors | no data | 1,178 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Turion II Ultra M660 and A6-4455M 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 | Socket S1 (s1g3) 638-pin | FP2 |
| Power consumption (TDP) | 35 Watt | 17 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Turion II Ultra M660 and A6-4455M. 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 | 86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA |
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
| PowerNow | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Turion II Ultra M660 and A6-4455M are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Turion II Ultra M660 and A6-4455M. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | unknown Dual-channel |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon HD 7500G (327 - 424 MHz) |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
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
| Performance score | 0.57 | 0.46 |
| Recency | 10 September 2009 | 15 May 2012 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 35 Watt | 17 Watt |
Turion II Ultra M660 has a 23.9% higher aggregate performance score.
A6-4455M, on the other hand, has an age advantage of 2 years, a 40.6% more advanced lithography process, and 105.9% lower power consumption.
The AMD Turion II Ultra M660 is our recommended choice as it beats the AMD A6-4455M in performance tests.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
