Xeon L5408 vs Ryzen 5 8640U
Aggregate performance score
Ryzen 5 8640U outperforms Xeon L5408 by a whopping 1047% 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 | 735 | 2642 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Power efficiency | 17.48 | 1.07 |
| Designer | AMD | Intel |
| Manufacturer | TSMC | Intel |
| Architecture codename | Hawk Point-U (Zen 4) (2023−2025) | Harpertown (2007−2008) |
| Release date | 6 December 2023 (1 year ago) | 27 February 2008 (17 years ago) |
Detailed specifications
Ryzen 5 8640U and Xeon L5408 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 | 6 (Hexa-Core) | 4 (Quad-Core) |
| Threads | 12 | 4 |
| Base clock speed | 3.5 GHz | 2.133 GHz |
| Boost clock speed | 4.9 GHz | 0.13 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 6 MB (per die) |
| L3 cache | 16 MB (shared) | no data |
| Chip lithography | 4 nm | 45 nm |
| Die size | 178 mm2 | 2x 107 mm2 |
| Maximum core temperature | 100 °C | no data |
| Maximum case temperature (TCase) | no data | 87 °C |
| Number of transistors | 25,000 million | 820 million |
| 64 bit support | + | + |
Compatibility
Information on Ryzen 5 8640U and Xeon L5408 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 | 2 |
| Socket | FP8 | 771 |
| Power consumption (TDP) | 28 Watt | 40 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 5 8640U and Xeon L5408. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3 | no data |
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Precision Boost 2 | + | no data |
Security technologies
Ryzen 5 8640U and Xeon L5408 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 5 8640U and Xeon L5408 are enumerated here.
| AMD-V | + | - |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 5 8640U and Xeon L5408. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR2, DDR3 Depends on motherboard |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 760M ( - 2600 MHz) | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen 5 8640U and Xeon L5408.
| PCIe version | 4.0 | 2.0 |
| PCI Express lanes | 20 | no data |
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 | 11.58 | 1.01 |
| Recency | 6 December 2023 | 27 February 2008 |
| Physical cores | 6 | 4 |
| Threads | 12 | 4 |
| Chip lithography | 4 nm | 45 nm |
| Power consumption (TDP) | 28 Watt | 40 Watt |
Ryzen 5 8640U has a 1046.5% higher aggregate performance score, an age advantage of 15 years, 50% more physical cores and 200% more threads, a 1025% more advanced lithography process, and 42.9% lower power consumption.
The AMD Ryzen 5 8640U is our recommended choice as it beats the Intel Xeon L5408 in performance tests.
Be aware that Ryzen 5 8640U is a notebook processor while Xeon L5408 is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
