Xeon E-2478 vs Athlon X2 QL-66
Primary details
Comparing Athlon X2 QL-66 and Xeon E-2478 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 314 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 82.64 |
| Market segment | Laptop | Server |
| Series | 2x AMD Athlon | no data |
| Power efficiency | no data | 22.22 |
| Architecture codename | Lion (2008−2009) | Raptor Lake-S (2023−2024) |
| Release date | 1 September 2009 (15 years ago) | 14 December 2023 (less than a year ago) |
| Launch price (MSRP) | no data | $568 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Athlon X2 QL-66 and Xeon E-2478 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 | 2 (Dual-core) | 8 (Octa-Core) |
| Threads | 2 | 16 |
| Base clock speed | no data | 2.8 GHz |
| Boost clock speed | 2.2 GHz | 5.2 GHz |
| Bus rate | 3600 MHz | 16 GT/s |
| L1 cache | 256 KB | 80 KB (per core) |
| L2 cache | 1 MB | 2 MB (per core) |
| L3 cache | no data | 24 MB (shared) |
| Chip lithography | 65 nm | Intel 7 nm |
| Die size | no data | 257 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Athlon X2 QL-66 and Xeon E-2478 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 | no data | 1 |
| Socket | S1g2 | FCLGA1700 |
| Power consumption (TDP) | 35 Watt | 80 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon X2 QL-66 and Xeon E-2478. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| PowerNow | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 2 |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Turbo Boost Max 3.0 | no data | + |
Security technologies
Athlon X2 QL-66 and Xeon E-2478 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon X2 QL-66 and Xeon E-2478 are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon X2 QL-66 and Xeon E-2478. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5-4800 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Athlon X2 QL-66 and Xeon E-2478.
| PCIe version | no data | 5 |
| PCI Express lanes | no data | 16 |
Synthetic benchmark performance
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.
Pros & cons summary
| Recency | 1 September 2009 | 14 December 2023 |
| Physical cores | 2 | 8 |
| Threads | 2 | 16 |
| Power consumption (TDP) | 35 Watt | 80 Watt |
Athlon X2 QL-66 has 128.6% lower power consumption.
Xeon E-2478, on the other hand, has an age advantage of 14 years, and 300% more physical cores and 700% more threads.
We couldn't decide between Athlon X2 QL-66 and Xeon E-2478. We've got no test results to judge.
Be aware that Athlon X2 QL-66 is a notebook processor while Xeon E-2478 is a server/workstation one.
Should you still have questions on choice between Athlon X2 QL-66 and Xeon E-2478, ask them in Comments section, and we shall answer.
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