Celeron B840: specs and benchmarks
Aggregate performance score
Celeron B840 provides poor benchmark performance at 0.60% of a leader's which is a 96-core EPYC 9655P.
Contents
Summary
Intel started Celeron B840 sales 1 July 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,PGA988 processor with a TDP of 35 Watt. It supports DDR3 memory.
Primary details
Celeron B840 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | 2944 | |
| Place by popularity | not in top-100 | |
| Market segment | Laptop | |
| Series | Intel Celeron | |
| Power efficiency | 1.65 | of 100.00 (Ryzen Z1 Extreme) |
| Designer | Intel | |
| Manufacturer | Intel | |
| Architecture codename | Sandy Bridge (2011−2013) | |
| Release date | 1 July 2011 (13 years ago) | |
| Launch price (MSRP) | $86 | of 17,906 (Xeon Platinum 8280L) |
Detailed specifications
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 GHz (FX-9590) |
| Boost clock speed | 1.9 GHz | of 6.2 GHz (Core i9-14900KS) |
| Bus type | DMI 2.0 | |
| Bus rate | 4 × 5 GT/s | |
| Multiplier | 19 | of 42 (Core i7-7700K) |
| L1 cache | 128 KB | of 80 KB (EPYC 9965) |
| L2 cache | 512 KB | of 2 MB (Xeon 6980P) |
| L3 cache | 2 MB (shared) | of 1152 MB (EPYC 9684X) |
| Chip lithography | 32 nm | of 3 nm (Apple M3 Max 16-Core) |
| Die size | 131 mm2 | |
| Maximum core temperature | 100 °C | of 110 °C (Atom x7-E3950) |
| Number of transistors | 504 million | of 135,240 million (EPYC 9684X) |
| 64 bit support | + | |
| Windows 11 compatibility | - |
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 (Uniprocessor) | of 8 (Opteron 842) |
| Socket | FCPGA988,PGA988 | |
| Power consumption (TDP) | 35 Watt | of 500 Watt (Xeon 6960P) |
Technologies and extensions
Technological capabilities and additional instructions supported by Celeron B840. You'll probably need this information if you require some particular technology.
| FMA | + | |
| 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 | |
| Maximum memory size | 16 GB | of 6 TiB (EPYC 9124) |
| Max memory channels | 2 | of 12 (Xeon Platinum 9221) |
| Maximum memory bandwidth | 21.335 GB/s | of 460.8 GB/s (EPYC 9124) |
Graphics specifications
General parameters of a GPU integrated into Celeron B840.
| Integrated graphics card | Intel HD Graphics for 2nd Generation Intel Processors | |
| 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 5.0 (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.
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. Other than that, Passmark measures multi-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.
Send your test results of Celeron B840.
AMD equivalent
According to our data, the closest AMD alternative to Celeron B840 is A4-5150M, which is nearly equal in speed and lower by 6 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 42 configurations using Celeron B840 in our database.
