Xeon E5649 vs EPYC 9455P
Aggregate performance score
EPYC 9455P outperforms Xeon E5649 by a whopping 1974% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 23 | 1802 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 11.73 | 1.56 |
| Market segment | Server | Server |
| Power efficiency | 9.40 | 1.70 |
| Designer | AMD | Intel |
| Manufacturer | TSMC | Intel |
| Architecture codename | Turin (2024) | Westmere-EP (2010−2011) |
| Release date | 10 October 2024 (1 year ago) | 14 February 2011 (14 years ago) |
| Launch price (MSRP) | $4,819 | $45 |
Cost-effectiveness evaluation
Performance per price, higher is better.
EPYC 9455P has 652% better value for money than Xeon E5649.
Performance to price scatter graph
Detailed specifications
EPYC 9455P and Xeon E5649 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 | 48 (Octatetraconta-Core) | 6 (Hexa-Core) |
| Threads | 96 | 12 |
| Base clock speed | 3.15 GHz | 2.53 GHz |
| Boost clock speed | 4.4 GHz | 2.93 GHz |
| L1 cache | 80 KB (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 256 KB (per core) |
| L3 cache | 256 MB (shared) | 12288 KB (shared) |
| Chip lithography | 4 nm | 32 nm |
| Die size | 8x 70.6 mm2 | 239 mm2 |
| Maximum core temperature | no data | 76 °C |
| Number of transistors | 66,520 million | 1,170 million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
Compatibility
Information on EPYC 9455P and Xeon E5649 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 | SP5 | FCLGA1366 |
| Power consumption (TDP) | 300 Watt | 80 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9455P and Xeon E5649. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.2 |
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 1.0 |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Demand Based Switching | no data | + |
| PAE | no data | 40 Bit |
| Precision Boost 2 | + | no data |
Security technologies
EPYC 9455P and Xeon E5649 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 9455P and Xeon E5649 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9455P and Xeon E5649. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR3 |
| Maximum memory size | no data | 288 GB |
| Max memory channels | no data | 3 |
| Maximum memory bandwidth | no data | 32 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | no data |
Peripherals
Specifications and connection of peripherals supported by EPYC 9455P and Xeon E5649.
| PCIe version | 5.0 | 2.0 |
| PCI Express lanes | 128 | no data |
Synthetic benchmarks
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 66.77 | 3.22 |
| Recency | 10 October 2024 | 14 February 2011 |
| Physical cores | 48 | 6 |
| Threads | 96 | 12 |
| Chip lithography | 4 nm | 32 nm |
| Power consumption (TDP) | 300 Watt | 80 Watt |
EPYC 9455P has a 1973.6% higher aggregate performance score, an age advantage of 13 years, 700% more physical cores and 700% more threads, and a 700% more advanced lithography process.
Xeon E5649, on the other hand, has 275% lower power consumption.
The AMD EPYC 9455P is our recommended choice as it beats the Intel Xeon E5649 in performance tests.
Other comparisons
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