Athlon 300U vs Celeron B800
Primary details
Comparing Celeron B800 and Athlon 300U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 1758 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Celeron | AMD Athlon |
| Power efficiency | no data | 15.33 |
| Architecture codename | Sandy Bridge (2011−2013) | Raven Ridge 2 (2019) |
| Release date | 19 June 2011 (13 years ago) | 6 January 2019 (5 years ago) |
| Launch price (MSRP) | $80 | no data |
Detailed specifications
Celeron B800 and Athlon 300U 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 | 4 |
| Base clock speed | 1.5 GHz | 2.4 GHz |
| Boost clock speed | 1.5 GHz | 3.3 GHz |
| Bus type | DMI 2.0 | PCIe 3.0 |
| Bus rate | 4 × 5 GT/s | no data |
| Multiplier | 15 | 24 |
| L1 cache | 64K (per core) | 128K (per core) |
| L2 cache | 256K (per core) | 512K (per core) |
| L3 cache | 2 MB (shared) | 4 MB (shared) |
| Chip lithography | 32 nm | 14 nm |
| Die size | 131 mm2 | 209.78 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | 504 million | 4940 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Celeron B800 and Athlon 300U 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 (Uniprocessor) | 1 (Uniprocessor) |
| Socket | FCPGA988 | FP5 |
| Power consumption (TDP) | 35 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron B800 and Athlon 300U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | XFR, FMA3, SSE 4.2, AVX2, SMT |
| AES-NI | - | + |
| FMA | + | - |
| 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 |
| Demand Based Switching | - | no data |
| FDI | + | no data |
| Fast Memory Access | + | no data |
Security technologies
Celeron B800 and Athlon 300U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron B800 and Athlon 300U are enumerated here.
| AMD-V | - | + |
| VT-d | - | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron B800 and Athlon 300U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4 Dual-channel |
| Maximum memory size | 16 GB | 64 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 21.335 GB/s | 38.397 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 | AMD Radeon RX Vega 3 |
| Graphics max frequency | 1 GHz | no data |
Graphics interfaces
Available interfaces and connections of Celeron B800 and Athlon 300U integrated GPUs.
| Number of displays supported | 2 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| SDVO | + | no data |
| CRT | + | no data |
Peripherals
Specifications and connection of peripherals supported by Celeron B800 and Athlon 300U.
| PCIe version | 2.0 | 3.0 |
| PCI Express lanes | 16 | 12 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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.
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.
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.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Pros & cons summary
| Recency | 19 June 2011 | 6 January 2019 |
| Threads | 2 | 4 |
| Chip lithography | 32 nm | 14 nm |
| Power consumption (TDP) | 35 Watt | 15 Watt |
Athlon 300U has an age advantage of 7 years, 100% more threads, a 128.6% more advanced lithography process, and 133.3% lower power consumption.
We couldn't decide between Celeron B800 and Athlon 300U. We've got no test results to judge.
Should you still have questions on choice between Celeron B800 and Athlon 300U, ask them in Comments section, and we shall answer.
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