Celeron 420: specs and benchmarks
Aggregate performance score
Celeron 420 provides poor benchmark performance at 0.15% of a leader's which is a 96-core EPYC 9655P.
Summary
Intel started Celeron 420 sales on June 2007 at a recommended price of $23. This is a Conroe-L architecture desktop processor primarily aimed at office systems. It has 1 core and 1 thread, and is based on 65 nm manufacturing technology, with a maximum frequency of 1600 MHz and a locked multiplier.
Compatibility-wise, this is LGA775 processor with a TDP of 35 Watt and a maximum temperature of 60 °C. It supports DDR1, DDR2, DDR3 memory.
Primary details
Celeron 420 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | 3324 | |
| Place by popularity | not in top-100 | |
| Market segment | Desktop processor | |
| Power efficiency | 0.41 | of 100.00 (Ryzen Z1 Extreme) |
| Architecture codename | Conroe-L (2007−2008) | |
| Release date | June 2007 (17 years ago) | |
| Launch price (MSRP) | $23 | 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 | 1 (Single-Core) | |
| Threads | 1 | |
| Base clock speed | 1.6 GHz | of 4.7 GHz (FX-9590) |
| Boost clock speed | 1.6 GHz | of 6.2 GHz (Core i9-14900KS) |
| L1 cache | 64 KB | of 80 KB (EPYC 9965) |
| L2 cache | 512 KB | of 2 MB (Xeon 6980P) |
| L3 cache | 0 KB | of 1152 MB (EPYC 9684X) |
| Chip lithography | 65 nm | of 3 nm (Apple M3 Max 16-Core) |
| Die size | 77 mm2 | |
| Maximum case temperature (TCase) | 60 °C | of 105 °C (Core i7-5950HQ) |
| Number of transistors | 105 million | of 135,240 million (EPYC 9684X) |
| 64 bit support | + | |
| Windows 11 compatibility | - | |
| VID voltage range | 1V-1.3375V |
Compatibility
Information on Celeron 420 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 | of 8 (Opteron 842) |
| Socket | LGA775 | |
| Power consumption (TDP) | 35 Watt | of 500 Watt (Xeon 6960P) |
Technologies and extensions
Technological capabilities and additional instructions supported by Celeron 420. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | - | |
| Turbo Boost Technology | - | |
| Hyper-Threading Technology | - | |
| Idle States | + | |
| Thermal Monitoring | + | |
| Demand Based Switching | - | |
| FSB parity | - |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | |
| EDB | + |
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 420's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR1, DDR2, DDR3 |
Benchmark performance
Single-core and multi-core benchmark results of Celeron 420. 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. 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.
Send your test results of Celeron 420.
AMD equivalent
According to our data, the closest AMD alternative to Celeron 420 is Athlon 64 2600+, which is nearly equal in speed and higher by 13 positions in our ranking.
Here are some closest AMD rivals to Celeron 420:
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 420, according to our PC configuration statistics.
These are the fastest graphics cards for Celeron 420 in our user configuration statistics. There is a total of 145 configurations using Celeron 420 in our database.
