i7-640UM vs Pentium B950
Aggregate performance score
Core i7-640UM outperforms Pentium B950 by a moderate 17% based on our aggregate benchmark results.
Primary details
Comparing Pentium B950 and Core i7-640UM processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2770 | 2656 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Pentium | Intel Core i7 |
| Power efficiency | 1.70 | 3.89 |
| Architecture codename | Sandy Bridge (2011−2013) | Arrandale (2010−2011) |
| Release date | 19 June 2011 (13 years ago) | 7 January 2010 (14 years ago) |
| Launch price (MSRP) | $134 | $305 |
Detailed specifications
Pentium B950 and Core i7-640UM 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 | 2.1 GHz | 1.2 GHz |
| Boost clock speed | 2.1 GHz | 2.27 GHz |
| Bus type | DMI 2.0 | DMI 1.0 |
| Bus rate | 4 × 5 GT/s | 1 × 2.5 GT/s |
| Multiplier | 21 | 9 |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 256K (per core) | 256 KB (per core) |
| L3 cache | 2 MB (shared) | 4 MB (shared) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 131 mm2 | 81+114 mm2 |
| Maximum core temperature | 85 °C | 105 °C |
| Number of transistors | 504 million | 382+177 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Pentium B950 and Core i7-640UM 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 (Uniprocessor) | 1 (Uniprocessor) |
| Socket | PGA988 | BGA1288 |
| Power consumption (TDP) | 35 Watt | 18 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium B950 and Core i7-640UM. 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 | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| My WiFi | - | no data |
| Turbo Boost Technology | - | + |
| Hyper-Threading Technology | - | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | + | + |
| Demand Based Switching | - | no data |
| PAE | no data | 36 Bit |
| FDI | + | + |
| Fast Memory Access | + | + |
Security technologies
Pentium B950 and Core i7-640UM technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | + |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium B950 and Core i7-640UM are enumerated here.
| VT-d | - | + |
| VT-x | - | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium B950 and Core i7-640UM. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3-800 |
| Maximum memory size | 16 GB | 8 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 21.335 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 | - | + |
| Clear Video HD | - | + |
| Graphics max frequency | 1.1 GHz | 500 MHz |
Graphics interfaces
Available interfaces and connections of Pentium B950 and Core i7-640UM integrated GPUs.
| Number of displays supported | 2 | 2 |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| SDVO | + | no data |
| CRT | + | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium B950 and Core i7-640UM.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | 16 | 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.
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.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Performance score | 0.63 | 0.74 |
| Recency | 19 June 2011 | 7 January 2010 |
| Threads | 2 | 4 |
| Power consumption (TDP) | 35 Watt | 18 Watt |
Pentium B950 has an age advantage of 1 year.
i7-640UM, on the other hand, has a 17.5% higher aggregate performance score, 100% more threads, and 94.4% lower power consumption.
The Core i7-640UM is our recommended choice as it beats the Pentium B950 in performance tests.
Should you still have questions on choice between Pentium B950 and Core i7-640UM, ask them in Comments section, and we shall answer.
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