Celeron B815 vs Athlon 64 X2 TK-42
Primary details
Comparing Athlon 64 X2 TK-42 and Celeron B815 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | 2x AMD Athlon 64 | Intel Celeron |
| Architecture codename | Tyler (2007−2009) | Sandy Bridge (2011−2013) |
| Release date | 1 November 2009 (14 years ago) | 1 November 2011 (12 years ago) |
| Launch price (MSRP) | no data | $86 |
Detailed specifications
Athlon 64 X2 TK-42 and Celeron B815 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 | 1.6 GHz |
| Boost clock speed | 1.6 GHz | 1.6 GHz |
| Bus type | no data | DMI 2.0 |
| Bus rate | 1600 MHz | 4 × 5 GT/s |
| Multiplier | no data | 16 |
| L1 cache | 0 MB | 128 KB |
| L2 cache | 1 MB | 512 KB |
| L3 cache | no data | 2 MB |
| Chip lithography | 65 nm | 32 nm |
| Die size | no data | 131 mm2 |
| Maximum core temperature | 95 °C | 100 °C |
| Number of transistors | no data | 504 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Athlon 64 X2 TK-42 and Celeron B815 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 (Uniprocessor) |
| Socket | Socket S1 | FCPGA988,PGA988 |
| Power consumption (TDP) | 20 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon 64 X2 TK-42 and Celeron B815. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x Enhanced Virus Protection (EVP), MMX, PowerNow, SSE3,-64, Enhanced 3DNow | Intel® SSE4.1, Intel® SSE4.2 |
| FMA | - | + |
| PowerNow | + | - |
| VirusProtect | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| My WiFi | 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 | + |
| Status | no data | Discontinued |
Security technologies
Athlon 64 X2 TK-42 and Celeron B815 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 Athlon 64 X2 TK-42 and Celeron B815 are enumerated here.
| VT-d | no data | - |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon 64 X2 TK-42 and Celeron B815. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR3 |
| Maximum memory size | no data | 16 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 21.335 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 | 1.05 GHz |
Graphics interfaces
Available interfaces and connections of Athlon 64 X2 TK-42 and Celeron B815 integrated GPUs.
| Number of displays supported | no data | 2 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| SDVO | no data | + |
| CRT | no data | + |
Peripherals
Specifications and connection of peripherals supported by Athlon 64 X2 TK-42 and Celeron B815.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 16 |
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.
Pros & cons summary
| Recency | 1 November 2009 | 1 November 2011 |
| Chip lithography | 65 nm | 32 nm |
| Power consumption (TDP) | 20 Watt | 35 Watt |
Athlon 64 X2 TK-42 has 75% lower power consumption.
Celeron B815, on the other hand, has an age advantage of 2 years, and a 103.1% more advanced lithography process.
We couldn't decide between Athlon 64 X2 TK-42 and Celeron B815. We've got no test results to judge.
Should you still have questions on choice between Athlon 64 X2 TK-42 and Celeron B815, ask them in Comments section, and we shall answer.
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