i9-14900K vs Opteron 840
Primary details
Comparing Opteron 840 and Core i9-14900K processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 81 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 61.57 |
| Market segment | Server | Desktop processor |
| Power efficiency | no data | 28.68 |
| Architecture codename | SledgeHammer (2003−2005) | Raptor Lake-R (2023−2024) |
| Release date | September 2003 (21 year ago) | 17 October 2023 (1 year ago) |
| Launch price (MSRP) | no data | $589 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Opteron 840 and Core i9-14900K 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 | 1 (Single-Core) | 24 (Tetracosa-Core) |
| Threads | 1 | 32 |
| Base clock speed | no data | 3.2 GHz |
| Boost clock speed | 1.4 GHz | 5.8 GHz |
| L1 cache | 128 KB | 80 KB (per core) |
| L2 cache | 1 MB | 2 MB (per core) |
| L3 cache | 0 KB | 36 MB (shared) |
| Chip lithography | 130 nm | Intel 7 nm |
| Die size | 193 mm2 | 257 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 106 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Opteron 840 and Core i9-14900K 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 | 940 | FCLGA1700 |
| Power consumption (TDP) | 85 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Opteron 840 and Core i9-14900K. 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 | - | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| SIPP | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
Opteron 840 and Core i9-14900K 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 Opteron 840 and Core i9-14900K 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 Opteron 840 and Core i9-14900K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4, DDR5 |
| Maximum memory size | no data | 192 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 89.6 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel UHD Graphics 770 |
| Quick Sync Video | - | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.65 GHz |
| Execution Units | no data | 32 |
Graphics interfaces
Available interfaces and connections of Opteron 840 and Core i9-14900K integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Opteron 840 and Core i9-14900K integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096 x 2160 @ 60Hz |
| Max resolution over eDP | no data | 5120 x 3200 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Opteron 840 and Core i9-14900K integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Opteron 840 and Core i9-14900K.
| PCIe version | no data | 5.0 and 4.0 |
| PCI Express lanes | no data | 16 |
Pros & cons summary
| Physical cores | 1 | 24 |
| Threads | 1 | 32 |
| Power consumption (TDP) | 85 Watt | 125 Watt |
Opteron 840 has 47.1% lower power consumption.
i9-14900K, on the other hand, has 2300% more physical cores and 3100% more threads.
We couldn't decide between Opteron 840 and Core i9-14900K. We've got no test results to judge.
Be aware that Opteron 840 is a server/workstation processor while Core i9-14900K is a desktop one.
Should you still have questions on choice between Opteron 840 and Core i9-14900K, ask them in Comments section, and we shall answer.
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