Ultra 9 285 vs Xeon E5-2658
Aggregate performance score
Core Ultra 9 285 outperforms Xeon E5-2658 by a whopping 786% based on our aggregate benchmark results.
Primary details
Comparing Xeon E5-2658 and Core Ultra 9 285 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1509 | 123 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.40 | no data |
| Market segment | Server | Desktop processor |
| Power efficiency | 3.80 | 25.58 |
| Architecture codename | Sandy Bridge-EP (2012) | Arrow Lake-S (2024−2025) |
| Release date | 6 March 2012 (12 years ago) | January 2025 (recently) |
| Launch price (MSRP) | $1,462 | $579 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E5-2658 and Core Ultra 9 285 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 | 8 (Octa-Core) | 24 (Tetracosa-Core) |
| Performance-cores | no data | 8 |
| Efficient-cores | no data | 16 |
| Threads | 16 | 24 |
| Base clock speed | 2.1 GHz | 2.5 GHz |
| Boost clock speed | 2.4 GHz | 5.5 GHz |
| L1 cache | 64 KB (per core) | 192 KB (per core) |
| L2 cache | 256 KB (per core) | 3 MB (per core) |
| L3 cache | 20480 KB (shared) | 36 MB (shared) |
| Chip lithography | 32 nm | 3 nm |
| Die size | 435 mm2 | 243 mm2 |
| Number of transistors | 2,270 million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon E5-2658 and Core Ultra 9 285 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 | 2011 | FCLGA1851 |
| Power consumption (TDP) | 95 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5-2658 and Core Ultra 9 285. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | + | no data |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| SIPP | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
| Supported AI Software Frameworks | - | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN |
Security technologies
Xeon E5-2658 and Core Ultra 9 285 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5-2658 and Core Ultra 9 285 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 Xeon E5-2658 and Core Ultra 9 285. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5-6400 |
| Maximum memory size | no data | 192 GB |
| Max memory channels | no data | 2 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® Graphics |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 2 GHz |
Graphics interfaces
Available interfaces and connections of Xeon E5-2658 and Core Ultra 9 285 integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Xeon E5-2658 and Core Ultra 9 285 integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL) |
| Max resolution over eDP | no data | 4K @ 60Hz |
| Max resolution over DisplayPort | no data | 8K @ 60Hz |
Graphics API support
APIs supported by Xeon E5-2658 and Core Ultra 9 285 integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Xeon E5-2658 and Core Ultra 9 285.
| PCIe version | 3.0 | 5.0 and 4.0 |
| PCI Express lanes | no data | 20 |
Synthetic benchmark performance
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.
Pros & cons summary
| Performance score | 3.79 | 33.59 |
| Physical cores | 8 | 24 |
| Threads | 16 | 24 |
| Chip lithography | 32 nm | 3 nm |
| Power consumption (TDP) | 95 Watt | 125 Watt |
Xeon E5-2658 has 31.6% lower power consumption.
Ultra 9 285, on the other hand, has a 786.3% higher aggregate performance score, 200% more physical cores and 50% more threads, and a 966.7% more advanced lithography process.
The Core Ultra 9 285 is our recommended choice as it beats the Xeon E5-2658 in performance tests.
Be aware that Xeon E5-2658 is a server/workstation processor while Core Ultra 9 285 is a desktop one.
Other comparisons
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