Celeron J3455E vs Athlon II X4 640
Aggregate performance score
Athlon II X4 640 outperforms Celeron J3455E by a minimal 2% based on our aggregate benchmark results.
Primary details
Comparing Athlon II X4 640 and Celeron J3455E processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2198 | 2218 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.92 | no data |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 1.40 | 13.06 |
| Architecture codename | Propus (2009−2011) | no data |
| Release date | 11 May 2010 (14 years ago) | 1 July 2019 (5 years ago) |
| Launch price (MSRP) | $80 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Athlon II X4 640 and Celeron J3455E 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 | 4 (Quad-Core) | no data |
| Threads | 4 | 4 |
| Base clock speed | 3 GHz | 1.5 GHz |
| Boost clock speed | 3 GHz | 2.3 GHz |
| L1 cache | 128 KB (per core) | no data |
| L2 cache | 512 KB (per core) | no data |
| L3 cache | 0 KB | 2 MB |
| Chip lithography | 45 nm | 14 nm |
| Die size | 169 mm2 | no data |
| Maximum core temperature | no data | 105 °C |
| Number of transistors | 300 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Athlon II X4 640 and Celeron J3455E 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 | AM3 | no data |
| Power consumption (TDP) | 95 Watt | 10 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon II X4 640 and Celeron J3455E. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Smart Response | no data | - |
Security technologies
Athlon II X4 640 and Celeron J3455E technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Secure Key | no data | + |
| Identity Protection | - | + |
| Anti-Theft | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon II X4 640 and Celeron J3455E are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| VT-i | no data | - |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II X4 640 and Celeron J3455E. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3L/LPDDR3 up to 1866 MT/s; LPDDR4 up to 2400 MT/s |
| Maximum memory size | no data | 8 GB |
| Max memory channels | no data | 2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel HD Graphics 500 |
| Max video memory | no data | 8 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 750 MHz |
| Execution Units | no data | 12 |
Graphics interfaces
Available interfaces and connections of Athlon II X4 640 and Celeron J3455E integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| MIPI-DSI | no data | + |
Graphics API support
APIs supported by Athlon II X4 640 and Celeron J3455E integrated GPUs, sometimes API versions are included.
| DirectX | no data | + |
| OpenGL | no data | + |
Peripherals
Specifications and connection of peripherals supported by Athlon II X4 640 and Celeron J3455E.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | no data | 6 |
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 | 1.41 | 1.38 |
| Recency | 11 May 2010 | 1 July 2019 |
| Chip lithography | 45 nm | 14 nm |
| Power consumption (TDP) | 95 Watt | 10 Watt |
Athlon II X4 640 has a 2.2% higher aggregate performance score.
Celeron J3455E, on the other hand, has an age advantage of 9 years, a 221.4% more advanced lithography process, and 850% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Athlon II X4 640 and Celeron J3455E.
Should you still have questions on choice between Athlon II X4 640 and Celeron J3455E, ask them in Comments section, and we shall answer.
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