Ultra 7 265KF vs Xeon E3-1278L v4
Primary details
Comparing Xeon E3-1278L v4 and Core Ultra 7 265KF processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 89 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 97.72 |
| Market segment | Server | Desktop processor |
| Power efficiency | no data | 28.07 |
| Architecture codename | Broadwell-DT (2015) | Arrow Lake-S (2024−2025) |
| Release date | 2 June 2015 (9 years ago) | 24 October 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $379 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E3-1278L v4 and Core Ultra 7 265KF 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) | 20 (Icosa-Core) |
| Threads | 8 | 20 |
| Base clock speed | 2 GHz | 3.9 GHz |
| Boost clock speed | 3.3 GHz | 5.5 GHz |
| L1 cache | 64K (per core) | 112 KB (per core) |
| L2 cache | 256K (per core) | 3 MB (per core) |
| L3 cache | 6 MB (shared) | 30 MB (shared) |
| Chip lithography | 14 nm | 3 nm |
| Die size | 182 mm2 | 243 mm2 |
| Number of transistors | no data | 17,800 million |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon E3-1278L v4 and Core Ultra 7 265KF 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 | Intel BGA 1364 | 1851 |
| Power consumption (TDP) | 47 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E3-1278L v4 and Core Ultra 7 265KF. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | - | + |
Security technologies
Xeon E3-1278L v4 and Core Ultra 7 265KF technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E3-1278L v4 and Core Ultra 7 265KF are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E3-1278L v4 and Core Ultra 7 265KF. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1600 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Iris Pro P6300 | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon E3-1278L v4 and Core Ultra 7 265KF.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 2 June 2015 | 24 October 2024 |
| Physical cores | 4 | 20 |
| Threads | 8 | 20 |
| Chip lithography | 14 nm | 3 nm |
| Power consumption (TDP) | 47 Watt | 125 Watt |
Xeon E3-1278L v4 has 166% lower power consumption.
Ultra 7 265KF, on the other hand, has an age advantage of 9 years, 400% more physical cores and 150% more threads, and a 366.7% more advanced lithography process.
We couldn't decide between Xeon E3-1278L v4 and Core Ultra 7 265KF. We've got no test results to judge.
Be aware that Xeon E3-1278L v4 is a server/workstation processor while Core Ultra 7 265KF is a desktop one.
Should you still have questions on choice between Xeon E3-1278L v4 and Core Ultra 7 265KF, ask them in Comments section, and we shall answer.
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