Ryzen 9 8945HX vs Xeon L5420
Aggregate performance score
Ryzen 9 8945HX outperforms Xeon L5420 by a whopping 2295% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2503 | 188 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.06 | no data |
| Market segment | Server | Laptop |
| Power efficiency | 1.03 | 22.45 |
| Designer | Intel | AMD |
| Manufacturer | Intel | TSMC |
| Architecture codename | Harpertown (2007−2008) | Dragon Range (2025) |
| Release date | 25 March 2008 (17 years ago) | 23 April 2025 (less than a year ago) |
| Launch price (MSRP) | $380 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon L5420 and Ryzen 9 8945HX 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) | 16 (Hexadeca-Core) |
| Threads | 4 | 32 |
| Base clock speed | 2.5 GHz | 2.5 GHz |
| Boost clock speed | 2.5 GHz | 5.4 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 6 MB (per die) | 1 MB (per core) |
| L3 cache | 12 MB L2 Cache | 64 MB (shared) |
| Chip lithography | 45 nm | 5 nm |
| Die size | 2x 107 mm2 | 2x 71 mm2 |
| Maximum case temperature (TCase) | 57 °C | no data |
| Number of transistors | 820 million | 13,140 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
| VID voltage range | 0.85V-1.35V | no data |
Compatibility
Information on Xeon L5420 and Ryzen 9 8945HX 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 | 2 | 1 |
| Socket | LGA771 | FL1 |
| Power consumption (TDP) | 50 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon L5420 and Ryzen 9 8945HX. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | + | no data |
| FSB parity | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Xeon L5420 and Ryzen 9 8945HX 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 Xeon L5420 and Ryzen 9 8945HX are enumerated here.
| AMD-V | - | + |
| VT-x | + | no data |
| EPT | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon L5420 and Ryzen 9 8945HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2, DDR3 Depends on motherboard | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | AMD Radeon 610M |
Peripherals
Specifications and connection of peripherals supported by Xeon L5420 and Ryzen 9 8945HX.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | no data | 28 |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 1.22 | 29.22 |
| Recency | 25 March 2008 | 23 April 2025 |
| Physical cores | 4 | 16 |
| Threads | 4 | 32 |
| Chip lithography | 45 nm | 5 nm |
| Power consumption (TDP) | 50 Watt | 55 Watt |
Xeon L5420 has 10% lower power consumption.
Ryzen 9 8945HX, on the other hand, has a 2295.1% higher aggregate performance score, an age advantage of 17 years, 300% more physical cores and 700% more threads, and a 800% more advanced lithography process.
The AMD Ryzen 9 8945HX is our recommended choice as it beats the Intel Xeon L5420 in performance tests.
Be aware that Xeon L5420 is a server/workstation processor while Ryzen 9 8945HX is a notebook one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
