Xeon D-2899NT vs Athlon X4 840
Primary details
Comparing Athlon X4 840 and Xeon D-2899NT processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1869 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Series | 4x Athlon | no data |
| Power efficiency | 3.04 | no data |
| Architecture codename | Kaveri (2014−2015) | Ice Lake-D (2022−2023) |
| Release date | August 2014 (10 years ago) | 14 December 2023 (less than a year ago) |
| Launch price (MSRP) | no data | $2,138 |
Detailed specifications
Athlon X4 840 and Xeon D-2899NT 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) | 22 (Docosa-Core) |
| Threads | 4 | 44 |
| Base clock speed | 3.1 GHz | 2.2 GHz |
| Boost clock speed | 3.8 GHz | 3.1 GHz |
| L1 cache | 256K | 80 KB (per core) |
| L2 cache | 4 MB | 1.25 MB (per core) |
| L3 cache | no data | 30 MB (shared) |
| Chip lithography | 28 nm | 10 nm |
| Die size | 245 mm2 | no data |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | 2,411 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Athlon X4 840 and Xeon D-2899NT 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 | Socket FM2+ | FCBGA2579 |
| Power consumption (TDP) | 65 watt | 135 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon X4 840 and Xeon D-2899NT. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX-512 |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| QuickAssist | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| Thermal Monitoring | - | + |
| Deep Learning Boost | - | + |
Security technologies
Athlon X4 840 and Xeon D-2899NT technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon X4 840 and Xeon D-2899NT are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon X4 840 and Xeon D-2899NT. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4 |
| Maximum memory size | no data | 1 TB |
| Max memory channels | no data | 4 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Athlon X4 840 and Xeon D-2899NT.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 16 | 32 |
| USB revision | no data | 3.0 |
| Max number of SATA 6 Gb/s Ports | no data | 24 |
| Number of USB ports | no data | 4 |
| Integrated LAN | no data | + |
Pros & cons summary
| Recency | on August 2014 | 14 December 2023 |
| Physical cores | 4 | 22 |
| Threads | 4 | 44 |
| Chip lithography | 28 nm | 10 nm |
| Power consumption (TDP) | 65 Watt | 135 Watt |
Athlon X4 840 has 107.7% lower power consumption.
Xeon D-2899NT, on the other hand, has an age advantage of 9 years, 450% more physical cores and 1000% more threads, and a 180% more advanced lithography process.
We couldn't decide between Athlon X4 840 and Xeon D-2899NT. We've got no test results to judge.
Note that Athlon X4 840 is a desktop processor while Xeon D-2899NT is a server/workstation one.
Should you still have questions on choice between Athlon X4 840 and Xeon D-2899NT, ask them in Comments section, and we shall answer.
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