Pentium G840 vs Celeron Dual-Core T3100
Aggregate performance score
Pentium G840 outperforms Celeron Dual-Core T3100 by a small 6% based on our aggregate benchmark results.
Primary details
Comparing Celeron Dual-Core T3100 and Pentium G840 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2660 | 2609 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 4.61 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Celeron Dual-Core | no data |
| Power efficiency | 2.01 | 1.15 |
| Architecture codename | Penryn (2008−2011) | Sandy Bridge (2011−2013) |
| Release date | 1 September 2009 (15 years ago) | 22 May 2011 (13 years ago) |
| Launch price (MSRP) | no data | $60 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Celeron Dual-Core T3100 and Pentium G840 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 | no data | 2.8 GHz |
| Boost clock speed | 1.9 GHz | 2.8 GHz |
| Bus rate | 800 MHz | no data |
| L1 cache | 128 KB | 64 KB (per core) |
| L2 cache | 1 MB | 256 KB (per core) |
| L3 cache | no data | 3 MB (shared) |
| Chip lithography | 45 nm | 32 nm |
| Die size | 107 mm2 | 131 mm2 |
| Maximum core temperature | 105 °C | 69 °C |
| Number of transistors | 410 Million | 504 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Celeron Dual-Core T3100 and Pentium G840 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 | no data | 1 |
| Socket | BGA479, PGA478 | FCLGA1155 |
| Power consumption (TDP) | 35 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron Dual-Core T3100 and Pentium G840. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| FDI | no data | + |
| Fast Memory Access | no data | + |
Security technologies
Celeron Dual-Core T3100 and Pentium G840 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron Dual-Core T3100 and Pentium G840 are enumerated here.
| VT-d | no data | - |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron Dual-Core T3100 and Pentium G840. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR3 |
| Maximum memory size | no data | 32 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 21 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® HD Graphics for 2nd Generation Intel® Processors |
| Graphics max frequency | no data | 1.1 GHz |
Graphics interfaces
Available interfaces and connections of Celeron Dual-Core T3100 and Pentium G840 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Celeron Dual-Core T3100 and Pentium G840.
| PCIe version | no data | 2.0 |
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.
Pros & cons summary
| Performance score | 0.77 | 0.82 |
| Recency | 1 September 2009 | 22 May 2011 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 35 Watt | 65 Watt |
Celeron Dual-Core T3100 has 85.7% lower power consumption.
Pentium G840, on the other hand, has a 6.5% higher aggregate performance score, an age advantage of 1 year, and a 40.6% more advanced lithography process.
Given the minimal performance differences, no clear winner can be declared between Celeron Dual-Core T3100 and Pentium G840.
Be aware that Celeron Dual-Core T3100 is a notebook processor while Pentium G840 is a desktop one.
Should you still have questions on choice between Celeron Dual-Core T3100 and Pentium G840, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
