Celeron 2957U vs Pentium B940
Aggregated performance score
General info
Comparing Pentium B940 and Celeron 2957U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2679 | 2681 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Pentium | Intel Celeron |
| Architecture codename | Sandy Bridge (2011−2013) | Haswell (2013−2015) |
| Release date | 19 June 2011 (12 years old) | 1 January 2014 (10 years old) |
| Launch price (MSRP) | $134 | $107 |
| Current price | $131 (1x MSRP) | $219 (2x MSRP) |
Technical specs
Pentium B940 and Celeron 2957U 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 | 2 GHz | 1.4 GHz |
| Boost clock speed | 2 GHz | 1.4 GHz |
| L1 cache | 64K (per core) | 128 KB |
| L2 cache | 256K (per core) | 512 KB |
| L3 cache | 2 MB (shared) | 2 MB |
| Chip lithography | 32 nm | 22 nm |
| Die size | 131 mm2 | no data |
| Maximum core temperature | 85 °C | 100 °C |
| Number of transistors | 504 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Pentium B940 and Celeron 2957U 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 |
| Socket | PGA988 | FCBGA1168 |
| Power consumption (TDP) | 35 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium B940 and Celeron 2957U. 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 | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| My WiFi | - | no data |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | - |
| TSX | no data | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | + | no data |
| SIPP | no data | - |
| Smart Response | no data | - |
| Demand Based Switching | - | no data |
| GPIO | no data | + |
| Smart Connect | no data | + |
| FDI | + | - |
| Fast Memory Access | + | no data |
| AMT | no data | 9.5 |
| Matrix Storage | no data | - |
| Status | Discontinued | Discontinued |
| HD Audio | no data | + |
| RST | no data | + |
Security technologies
Pentium B940 and Celeron 2957U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
| Secure Key | no data | + |
| Identity Protection | no data | - |
| OS Guard | no data | - |
| Anti-Theft | - | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium B940 and Celeron 2957U are enumerated here.
| AMD-V | no data | + |
| VT-d | - | - |
| VT-x | - | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium B940 and Celeron 2957U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 16 GB | 16 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 21.3 GB/s | 25.6 GB/s |
| ECC memory support | - | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® HD Graphics for 2nd Generation Intel® Processors | Intel® HD Graphics for 4th Generation Intel® Processors |
| Quick Sync Video | - | + |
| Clear Video | - | + |
| Graphics max frequency | 1.1 GHz | 1 GHz |
Graphics interfaces
Available interfaces and connections of Pentium B940 and Celeron 2957U integrated GPUs.
| Number of displays supported | 2 | 3 |
| eDP | + | + |
| DisplayPort | + | + |
| HDMI | + | + |
| SDVO | + | no data |
| CRT | + | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium B940 and Celeron 2957U.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | 16 | 10 |
| PCI support | no data | - |
| USB revision | no data | 3.0 |
| Total number of SATA ports | no data | 2 |
| Max number of SATA 6 Gb/s Ports | no data | 2 |
| Integrated IDE | no data | - |
| Number of USB ports | no data | 4 |
| Integrated LAN | no data | - |
| UART | no data | + |
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.
Benchmark coverage: 68%
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.
Benchmark coverage: 20%
Pentium B940 outperforms Celeron 2957U by 26% in Cinebench 10 32-bit single-core.
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.
Benchmark coverage: 19%
Pentium B940 outperforms Celeron 2957U by 25% in Cinebench 10 32-bit multi-core.
Cinebench 11.5 64-bit multi-core
Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.
Benchmark coverage: 17%
Pentium B940 outperforms Celeron 2957U by 30% in Cinebench 11.5 64-bit multi-core.
Advantages and disadvantages
| Recency | 19 June 2011 | 1 January 2014 |
| Cost | $134 | $107 |
| Chip lithography | 32 nm | 22 nm |
| Power consumption (TDP) | 35 Watt | 15 Watt |
We couldn't decide between Pentium B940 and Celeron 2957U. The differences in performance seem too small.
Should you still have questions on choice between Pentium B940 and Celeron 2957U, ask them in Comments section, and we shall answer.
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