Ultra 9 285K vs Xeon 6756E
Primary details
Comparing Xeon 6756E and Core Ultra 9 285K processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 142 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 44.95 |
| Market segment | Server | Desktop processor |
| Power efficiency | no data | 22.34 |
| Architecture codename | Sierra Forest (2024) | Arrow Lake-S (2024−2025) |
| Release date | 3 June 2024 (less than a year ago) | 24 October 2024 |
| Launch price (MSRP) | $8,428 | $589 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon 6756E and Core Ultra 9 285K 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 | 128 | 24 (Tetracosa-Core) |
| Threads | 128 | 24 |
| Base clock speed | 1.8 GHz | 3.7 GHz |
| Boost clock speed | 2.6 GHz | 5.7 GHz |
| L1 cache | 96 KB (per core) | 112 KB (per core) |
| L2 cache | 4 MB (per module) | 3 MB (per core) |
| L3 cache | 96 MB (shared) | 36 MB (shared) |
| Chip lithography | 5 nm | 3 nm |
| Maximum case temperature (TCase) | 80 °C | no data |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon 6756E and Core Ultra 9 285K 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 | 1 |
| Socket | 4710 | 1851 |
| Power consumption (TDP) | 225 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon 6756E and Core Ultra 9 285K. 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 6756E and Core Ultra 9 285K technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon 6756E and Core Ultra 9 285K are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon 6756E and Core Ultra 9 285K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR5 Depends on motherboard |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Arc Xe-2 Graphics 64EU |
Peripherals
Specifications and connection of peripherals supported by Xeon 6756E and Core Ultra 9 285K.
| PCIe version | 5.0 | 5.0 |
| PCI Express lanes | 88 | 20 |
Pros & cons summary
| Recency | 3 June 2024 | 24 October 2024 |
| Physical cores | 128 | 24 |
| Threads | 128 | 24 |
| Chip lithography | 5 nm | 3 nm |
| Power consumption (TDP) | 225 Watt | 125 Watt |
Xeon 6756E has 433.3% more physical cores and 433.3% more threads.
Ultra 9 285K, on the other hand, has an age advantage of 4 months, a 66.7% more advanced lithography process, and 80% lower power consumption.
We couldn't decide between Xeon 6756E and Core Ultra 9 285K. We've got no test results to judge.
Be aware that Xeon 6756E is a server/workstation processor while Core Ultra 9 285K is a desktop one.
Should you still have questions on choice between Xeon 6756E and Core Ultra 9 285K, ask them in Comments section, and we shall answer.
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