Intel Celeron B840: specs and benchmarks
Summary
Intel started Celeron B840 sales 15 March 2011 at a recommended price of $86. This is a Sandy Bridge architecture notebook processor primarily aimed at office systems. It has 2 cores and 2 threads, and is based on 32 nm manufacturing technology, with a maximum frequency of 1900 MHz and a locked multiplier.
Compatibility-wise, this is FCPGA988 processor with a TDP of 35 Watt. It supports DDR3 memory.
It provides poor benchmark performance at 0.81% of a leader's which is AMD EPYC 9654.
General info
Celeron B840 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in performance ranking | 2485 | |
| Market segment | Laptop | |
| Series | Intel Celeron | |
| Architecture codename | Sandy Bridge (2011−2013) | |
| Release date | 15 March 2011 (12 years old) | |
| Launch price (MSRP) | $86 | of 305 (Core i7-870) |
| Current price | $133 (1.5x MSRP) | of 15710 (Xeon Platinum 8276L) |
Technical specs
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 2 (Dual-core) | |
| Threads | 2 | |
| Base clock speed | 1.9 GHz | of 4.7 (FX-9590) |
| Boost clock speed | 1.9 GHz | of 6 (Core i9-13900KS) |
| L1 cache | 64K (per core) | of 7475.2 (Apple M2 Pro 10-Core) |
| L2 cache | 256K (per core) | of 36864 (Apple M2 Max) |
| L3 cache | 2 MB (shared) | of 768 (EPYC 7373X) |
| Chip lithography | 32 nm | of 4 (Ryzen 9 7940HS) |
| Die size | 131 mm2 | |
| Maximum core temperature | 100 °C | of 110 (Atom x7-E3950) |
| Number of transistors | 504 million | of 9900000 (Ryzen 5 7645HX) |
| 64 bit support | + | |
| Windows 11 compatibility | - | |
| Unlocked multiplier | - |
Compatibility
Information on Celeron B840 compatibility with other computer components and devices: 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 | of 8 (Opteron 842) |
| Socket | FCPGA988 | |
| Power consumption (TDP) | 35 Watt | of 400 (Xeon Platinum 9282) |
Technologies and extensions
Technological capabilities and additional instructions supported by Celeron B840. You'll probably need this information if you require some particular technology.
| AES-NI | - | |
| FMA | + | |
| Enhanced SpeedStep (EIST) | + | |
| Enhanced SpeedStep (EIST) | + | |
| My WiFi | + | |
| Turbo Boost Technology | - | |
| Hyper-Threading Technology | - | |
| Idle States | + | |
| Thermal Monitoring | + | |
| Flex Memory Access | + | |
| Demand Based Switching | - | |
| FDI | + | |
| Fast Memory Access | + |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | |
| EDB | + | |
| Anti-Theft | - |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| VT-d | - | |
| VT-x | + |
Memory specs
Types, maximum amount and channel number of RAM supported by Celeron B840's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR3 | of 5600 (Ryzen 9 7940HS) |
| Maximum memory size | 16 GB | of 786 (Xeon E5-2670 v3) |
| Max memory channels | 2 | of 12 (Xeon Platinum 9221) |
| Maximum memory bandwidth | 21.3 GB/s | of 460.8 (EPYC 9124) |
| ECC memory support | - |
Graphics specifications
General parameters of a GPU integrated into Celeron B840.
| Integrated graphics card | Intel® HD Graphics for 2nd Generation Intel® Processors | |
| Quick Sync Video | - | |
| Clear Video HD | - | |
| Graphics max frequency | 1 GHz | |
| InTru 3D | - |
Graphics interfaces
Available interfaces and connections of Celeron B840's integrated GPU.
| Number of displays supported | 2 | |
| eDP | + | |
| DisplayPort | + | |
| HDMI | + | |
| SDVO | + | |
| CRT | + |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 2.0 | of 5 (Core i9-12900K) |
| PCI Express lanes | 16 | of 128 (EPYC 7551P) |
Benchmark performance
Single-core and multi-core benchmark results of Celeron B840. Overall benchmark performance 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%
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.
Benchmark coverage: 41%
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.
Benchmark coverage: 41%
Send your test results of Celeron B840.
Relative perfomance
Overall Celeron B840 performance compared to nearest competitors among notebook CPUs.
AMD equivalent
According to our data, the closest AMD alternative to Celeron B840 is Turion II Ultra M660, which is nearly equal in speed and higher by 2 positions in our ranking.
Here are some closest AMD rivals to Celeron B840:
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
Recommended GPUs
People consider these graphics cards to be good for Celeron B840, according to our PC configuration statistics.
These are the fastest graphics cards for Celeron B840 in our user configuration statistics. There is a total of 39 configurations based on Celeron B840 in our database.
