Xeon E5-4640 v4 vs i9-9800X
Primary details
Comparing Core i9-9800X and Xeon E5-4640 v4 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 507 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 2.97 |
| Market segment | Desktop processor | Server |
| Series | no data | Intel Xeon E5 |
| Power efficiency | no data | 12.80 |
| Architecture codename | Skylake-X (2018) | Broadwell (2015−2019) |
| Release date | October 2018 (6 years ago) | 20 June 2016 (8 years ago) |
| Launch price (MSRP) | no data | $2,837 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i9-9800X and Xeon E5-4640 v4 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) | 12 (Dodeca-Core) |
| Threads | 16 | 24 |
| Base clock speed | no data | 2.1 GHz |
| Boost clock speed | 3.8 GHz | 2.6 GHz |
| Bus type | no data | QPI |
| Bus rate | no data | 2 × 8 GT/s |
| Multiplier | no data | 21 |
| L1 cache | 64K (per core) | no data |
| L2 cache | 1 MB (per core) | 3 MB |
| L3 cache | 16.5 MB (shared) | 30 MB |
| Chip lithography | 14 nm | 14 nm |
| Die size | no data | 306.18 mm2 |
| Maximum core temperature | no data | 80 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 4700 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-9800X and Xeon E5-4640 v4 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 | 4 (Multiprocessor) |
| Socket | 2066 | FCLGA2011 |
| Power consumption (TDP) | 165 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-9800X and Xeon E5-4640 v4. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | + | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | - |
| PAE | no data | 46 Bit |
Security technologies
Core i9-9800X and Xeon E5-4640 v4 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 Core i9-9800X and Xeon E5-4640 v4 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-9800X and Xeon E5-4640 v4. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4 |
| Maximum memory size | no data | 1.5 TB |
| Max memory channels | no data | 4 |
| Maximum memory bandwidth | no data | 68 GB/s |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Core i9-9800X and Xeon E5-4640 v4.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 40 |
Pros & cons summary
| Physical cores | 8 | 12 |
| Threads | 16 | 24 |
| Power consumption (TDP) | 165 Watt | 105 Watt |
Xeon E5-4640 v4 has 50% more physical cores and 50% more threads, and 57.1% lower power consumption.
We couldn't decide between Core i9-9800X and Xeon E5-4640 v4. We've got no test results to judge.
Note that Core i9-9800X is a desktop processor while Xeon E5-4640 v4 is a server/workstation one.
Should you still have questions on choice between Core i9-9800X and Xeon E5-4640 v4, 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.
