i7-640M vs Turion II Ultra M660
Aggregate performance score
Core i7-640M outperforms Turion II Ultra M660 by a whopping 105% based on our aggregate benchmark results.
Primary details
Comparing Turion II Ultra M660 and Core i7-640M processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2759 | 2263 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Turion II Ultra | Intel Core i7 |
| Power efficiency | 1.72 | 3.53 |
| Architecture codename | Caspian (2009) | Arrandale (2010−2011) |
| Release date | 10 September 2009 (15 years ago) | 13 September 2010 (14 years ago) |
| Launch price (MSRP) | no data | $346 |
Detailed specifications
Turion II Ultra M660 and Core i7-640M 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 | 4 |
| Base clock speed | no data | 2.8 GHz |
| Boost clock speed | 2.7 GHz | 3.46 GHz |
| Bus type | no data | DMI 1.0 |
| Bus rate | 3600 MHz | 1 × 2.5 GT/s |
| Multiplier | no data | 21 |
| L1 cache | no data | 128 KB |
| L2 cache | 2 MB | 512 KB |
| L3 cache | no data | 4 MB (shared) |
| Chip lithography | 45 nm | 32 nm |
| Die size | no data | 81+114 mm2 |
| Maximum core temperature | no data | 105 °C |
| Number of transistors | no data | 382 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Turion II Ultra M660 and Core i7-640M 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 | BGA1288,PGA988 |
| Power consumption (TDP) | 35 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Turion II Ultra M660 and Core i7-640M. 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 | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | - | + |
| FMA | - | + |
| PowerNow | + | - |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | + |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| PAE | no data | 36 Bit |
| FDI | no data | + |
| Fast Memory Access | no data | + |
Security technologies
Turion II Ultra M660 and Core i7-640M 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 Turion II Ultra M660 and Core i7-640M are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Turion II Ultra M660 and Core i7-640M. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3 |
| Maximum memory size | no data | 8 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 17.051 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® HD Graphics for Previous Generation Intel® Processors |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 766 MHz |
Graphics interfaces
Available interfaces and connections of Turion II Ultra M660 and Core i7-640M integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Turion II Ultra M660 and Core i7-640M.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 16 |
Synthetic benchmark performance
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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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 | 0.65 | 1.33 |
| Recency | 10 September 2009 | 13 September 2010 |
| Threads | 2 | 4 |
| Chip lithography | 45 nm | 32 nm |
i7-640M has a 104.6% higher aggregate performance score, an age advantage of 1 year, 100% more threads, and a 40.6% more advanced lithography process.
The Core i7-640M is our recommended choice as it beats the Turion II Ultra M660 in performance tests.
Should you still have questions on choice between Turion II Ultra M660 and Core i7-640M, 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.
