Xeon 638 vs A4-5100
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2933 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | AMD A-Series | no data |
| Power efficiency | 2.08 | no data |
| Designer | AMD | Intel |
| Manufacturer | GlobalFoundries | Intel |
| Architecture codename | Kabini (2013−2014) | Granite Rapids (2024−2026) |
| Release date | 4 November 2013 (12 years ago) | 2 February 2026 (less than a year ago) |
| Launch price (MSRP) | no data | $899 |
Detailed specifications
Basic parameters of A4-5100 and Xeon 638: 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) |
| Performance-cores | no data | 16 |
| Threads | 4 | 32 |
| Base clock speed | no data | 3.2 GHz |
| Boost clock speed | 1.55 GHz | 4.8 GHz |
| Bus rate | no data | 0 GT/s |
| L1 cache | no data | 112 KB (per core) |
| L2 cache | 2048 KB | 2 MB (per core) |
| L3 cache | no data | 72 MB (shared) |
| Chip lithography | 28 nm | Intel 3 nm |
| Die size | 107 mm2 | 598 mm2 |
| Maximum case temperature (TCase) | 90 °C | 76 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on A4-5100 and Xeon 638 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 | 1 |
| Socket | FT3 | FCLGA4710 |
| Power consumption (TDP) | 15 Watt | 180 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A4-5100 and Xeon 638. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX | Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| FMA | FMA4 | - |
| AVX | + | + |
| PowerNow | + | - |
| PowerGating | + | - |
| VirusProtect | + | - |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
A4-5100 and Xeon 638 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A4-5100 and Xeon 638 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
| IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A4-5100 and Xeon 638. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5(6400MT/s) |
| Maximum memory size | no data | 2 TB |
| Max memory channels | 1 | 4 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 8330 | N/A |
| Enduro | + | - |
| Switchable graphics | + | - |
| UVD | + | - |
| VCE | + | - |
Graphics interfaces
Available interfaces and connections of A4-5100 and Xeon 638 integrated GPUs.
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by A4-5100 and Xeon 638 integrated GPUs, sometimes API versions are included.
| DirectX | DirectX® 12 | no data |
| Vulkan | + | - |
Peripherals
Specifications and connection of peripherals supported by A4-5100 and Xeon 638.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | 8 | 80 |
Synthetic benchmarks
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Recency | 4 November 2013 | 2 February 2026 |
| Physical cores | 4 | 16 |
| Threads | 4 | 32 |
| Power consumption (TDP) | 15 Watt | 180 Watt |
A4-5100 has 1100% lower power consumption.
Xeon 638, on the other hand, has an age advantage of 12 years, and 300% more physical cores and 700% more threads.
We couldn't decide between AMD A4-5100 and Intel Xeon 638. We've got no test results to judge.
Be aware that A4-5100 is a notebook processor while Xeon 638 is a server/workstation one.
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