Xeon E5-2649 V3 vs Ryzen 9 5900X
Aggregate performance score
Ryzen 9 5900X outperforms Xeon E5-2649 V3 by a whopping 215% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 9 5900X and Xeon E5-2649 V3 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 215 | 992 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 31.75 | no data |
| Market segment | Desktop processor | Server |
| Series | AMD Ryzen 9 | no data |
| Power efficiency | 22.07 | 7.01 |
| Architecture codename | Vermeer (Zen3) (2020−2022) | Haswell-EP (2014−2015) |
| Release date | 5 November 2020 (4 years ago) | 8 September 2014 (10 years ago) |
| Launch price (MSRP) | $549 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 9 5900X and Xeon E5-2649 V3 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 | 12 (Dodeca-Core) | 10 (Deca-Core) |
| Threads | 24 | 20 |
| Base clock speed | 3.7 GHz | 2.3 GHz |
| Boost clock speed | 4.8 GHz | 3 GHz |
| Multiplier | 37 | no data |
| L1 cache | 64K (per core) | 64K (per core) |
| L2 cache | 512K (per core) | 256K (per core) |
| L3 cache | 64 MB | 25 MB (shared) |
| Chip lithography | 7 nm, 12 nm | 22 nm |
| Die size | 2x 74 mm2(CCD) + 125 mm2 (IOD) | 356 mm2 |
| Maximum case temperature (TCase) | 95 °C | no data |
| Number of transistors | 0 Million | 2,600 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 9 5900X and Xeon E5-2649 V3 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 | 2 |
| Socket | AM4 | 2011-3 |
| Power consumption (TDP) | 105 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 5900X and Xeon E5-2649 V3. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| TSX | - | + |
| Precision Boost 2 | + | no data |
Security technologies
Ryzen 9 5900X and Xeon E5-2649 V3 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 5900X and Xeon E5-2649 V3 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 Ryzen 9 5900X and Xeon E5-2649 V3. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR3, DDR4 2133 MHz Quad-channel |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 51.196 GB/s | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 5900X and Xeon E5-2649 V3.
| PCIe version | 4.0 | 3.0 |
| PCI Express lanes | no data | 40 |
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 | 24.38 | 7.74 |
| Recency | 5 November 2020 | 8 September 2014 |
| Physical cores | 12 | 10 |
| Threads | 24 | 20 |
| Chip lithography | 7 nm | 22 nm |
Ryzen 9 5900X has a 215% higher aggregate performance score, an age advantage of 6 years, 20% more physical cores and 20% more threads, and a 214.3% more advanced lithography process.
The Ryzen 9 5900X is our recommended choice as it beats the Xeon E5-2649 V3 in performance tests.
Note that Ryzen 9 5900X is a desktop processor while Xeon E5-2649 V3 is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
