i7-660UM vs Pentium G640
Aggregate performance score
Pentium G640 outperforms Core i7-660UM by a small 6% based on our aggregate benchmark results.
Primary details
Comparing Pentium G640 and Core i7-660UM processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2626 | 2667 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.05 | no data |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Core i7 |
| Power efficiency | 1.25 | 4.23 |
| Architecture codename | Sandy Bridge (2011−2013) | Arrandale (2010−2011) |
| Release date | 3 June 2012 (12 years ago) | 24 May 2010 (14 years ago) |
| Launch price (MSRP) | $179 | $317 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium G640 and Core i7-660UM 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 | 2.8 GHz | 1.33 GHz |
| Boost clock speed | 2.8 GHz | 2.4 GHz |
| Bus type | no data | DMI 1.0 |
| Bus rate | 5 GT/s | 1 × 2.5 GT/s |
| Multiplier | no data | 10 |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 256 KB (per core) |
| L3 cache | 3 MB (shared) | 4 MB (shared) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 131 mm2 | 81+144 mm2 |
| Maximum core temperature | 69 °C | 105 °C |
| Number of transistors | 504 million | 382+177 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Pentium G640 and Core i7-660UM 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 | 1 (Uniprocessor) |
| Socket | FCLGA1155 | BGA1288 |
| Power consumption (TDP) | 65 Watt | 18 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium G640 and Core i7-660UM. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | + | + |
| FMA | - | + |
| AVX | + | - |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | + |
| Hyper-Threading Technology | - | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | + | + |
| PAE | no data | 36 Bit |
| FDI | + | + |
| Fast Memory Access | + | + |
Security technologies
Pentium G640 and Core i7-660UM technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium G640 and Core i7-660UM are enumerated here.
| VT-d | - | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium G640 and Core i7-660UM. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3-800 |
| Maximum memory size | 32 GB | 8 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 17 GB/s | 12.799 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics for 2nd Generation Intel Processors | Intel HD Graphics for Previous Generation Intel Processors |
| Clear Video | no data | + |
| Clear Video HD | - | + |
| Graphics max frequency | 1.1 GHz | 500 MHz |
Graphics interfaces
Available interfaces and connections of Pentium G640 and Core i7-660UM integrated GPUs.
| Number of displays supported | 2 | 2 |
Peripherals
Specifications and connection of peripherals supported by Pentium G640 and Core i7-660UM.
| PCIe version | 2.0 | 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.
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.
Pros & cons summary
| Performance score | 0.85 | 0.80 |
| Recency | 3 June 2012 | 24 May 2010 |
| Threads | 2 | 4 |
| Power consumption (TDP) | 65 Watt | 18 Watt |
Pentium G640 has a 6.2% higher aggregate performance score, and an age advantage of 2 years.
i7-660UM, on the other hand, has 100% more threads, and 261.1% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Pentium G640 and Core i7-660UM.
Note that Pentium G640 is a desktop processor while Core i7-660UM is a notebook one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
