Xeon Platinum 8558U vs Core 2 Quad Q8400s
Primary details
Comparing Core 2 Quad Q8400s and Xeon Platinum 8558U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Architecture codename | Yorkfield (2007−2009) | Emerald Rapids (2023) |
| Release date | 19 April 2009 (15 years ago) | 14 December 2023 (less than a year ago) |
| Launch price (MSRP) | no data | $3,720 |
Detailed specifications
Core 2 Quad Q8400s and Xeon Platinum 8558U 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) | 48 (Octatetraconta-Core) |
| Threads | 4 | 96 |
| Base clock speed | 2.66 GHz | 2 GHz |
| Boost clock speed | 0.67 GHz | 4 GHz |
| Bus rate | 1333 MHz | no data |
| L1 cache | 64 KB (per core) | 80 KB (per core) |
| L2 cache | 4 MB (shared) | 2 MB (per core) |
| L3 cache | 0 KB | 260 MB (shared) |
| Chip lithography | 45 nm | Intel 7 nm |
| Die size | 2x 82 mm2 | 2x 763 mm2 |
| Maximum case temperature (TCase) | 76 °C | 78 °C |
| Number of transistors | 456 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| VID voltage range | 0.85V-1.3625V | no data |
Compatibility
Information on Core 2 Quad Q8400s and Xeon Platinum 8558U 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 | FCLGA775,LGA775 | FCLGA4677 |
| Power consumption (TDP) | 65 Watt | 300 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad Q8400s and Xeon Platinum 8558U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | + |
| TSX | - | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | no data |
| Deep Learning Boost | - | + |
Security technologies
Core 2 Quad Q8400s and Xeon Platinum 8558U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | + |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Quad Q8400s and Xeon Platinum 8558U are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400s and Xeon Platinum 8558U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR5 @ 4800 MT/s (1 DPC) |
| Maximum memory size | no data | 4 TB |
| Max memory channels | no data | 8 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | N/A |
Peripherals
Specifications and connection of peripherals supported by Core 2 Quad Q8400s and Xeon Platinum 8558U.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | no data | 80 |
Pros & cons summary
| Recency | 19 April 2009 | 14 December 2023 |
| Physical cores | 4 | 48 |
| Threads | 4 | 96 |
| Power consumption (TDP) | 65 Watt | 300 Watt |
Core 2 Quad Q8400s has 361.5% lower power consumption.
Xeon Platinum 8558U, on the other hand, has an age advantage of 14 years, and 1100% more physical cores and 2300% more threads.
We couldn't decide between Core 2 Quad Q8400s and Xeon Platinum 8558U. We've got no test results to judge.
Note that Core 2 Quad Q8400s is a desktop processor while Xeon Platinum 8558U is a server/workstation one.
Should you still have questions on choice between Core 2 Quad Q8400s and Xeon Platinum 8558U, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
