Ryzen 9 7840HX vs Xeon L5420
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2503 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.06 | no data |
| Market segment | Server | Laptop |
| Series | no data | AMD Dragon Range (Zen 4, Ryzen 7045) |
| Power efficiency | 1.03 | no data |
| Designer | Intel | AMD |
| Manufacturer | Intel | no data |
| Architecture codename | Harpertown (2007−2008) | Dragon Range-HX (Zen 4) (2023−2024) |
| Release date | 25 March 2008 (17 years ago) | 17 January 2024 (1 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 7840HX 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) | 12 (Dodeca-Core) |
| Threads | 4 | 24 |
| Base clock speed | 2.5 GHz | 2.9 GHz |
| Boost clock speed | 2.5 GHz | 5.1 GHz |
| L1 cache | 64 KB (per core) | 768 KB |
| L2 cache | 6 MB (per die) | 12 MB |
| L3 cache | 12 MB L2 Cache | 64 MB |
| Chip lithography | 45 nm | 5 nm |
| Die size | 2x 107 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 57 °C | no data |
| Number of transistors | 820 million | 9900 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| VID voltage range | 0.85V-1.35V | no data |
Compatibility
Information on Xeon L5420 and Ryzen 9 7840HX 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 | no data |
| 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 7840HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME |
| 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 | + | - |
| Demand Based Switching | + | no data |
| FSB parity | + | no data |
Security technologies
Xeon L5420 and Ryzen 9 7840HX 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 7840HX are enumerated here.
| VT-x | + | no data |
| EPT | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon L5420 and Ryzen 9 7840HX. 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 (400 - 2200 MHz) |
Peripherals
Specifications and connection of peripherals supported by Xeon L5420 and Ryzen 9 7840HX.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 25 March 2008 | 17 January 2024 |
| Physical cores | 4 | 12 |
| Threads | 4 | 24 |
| Chip lithography | 45 nm | 5 nm |
| Power consumption (TDP) | 50 Watt | 55 Watt |
Xeon L5420 has 10% lower power consumption.
Ryzen 9 7840HX, on the other hand, has an age advantage of 15 years, 200% more physical cores and 500% more threads, and a 800% more advanced lithography process.
We couldn't decide between Intel Xeon L5420 and AMD Ryzen 9 7840HX. We've got no test results to judge.
Be aware that Xeon L5420 is a server/workstation processor while Ryzen 9 7840HX 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.
