EPYC 9645 vs Xeon E3-1245 v5
Primary details
Comparing Xeon E3-1245 v5 and EPYC 9645 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1203 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.47 | no data |
| Market segment | Server | Server |
| Series | Intel Xeon E3 | no data |
| Power efficiency | 5.98 | no data |
| Architecture codename | Skylake-DT (2015) | Turin (2024) |
| Release date | 19 October 2015 (9 years ago) | 10 October 2024 (recently) |
| Launch price (MSRP) | $294 | $11,048 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E3-1245 v5 and EPYC 9645 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) | 96 |
| Threads | 8 | 192 |
| Base clock speed | 3.5 GHz | 2.3 GHz |
| Boost clock speed | 3.9 GHz | 3.7 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 35 | no data |
| L1 cache | 64 KB (per core) | 80 KB (per core) |
| L2 cache | 256 KB (per core) | 1 MB (per core) |
| L3 cache | 8 MB (shared) | 256 MB (shared) |
| Chip lithography | 14 nm | 3 nm |
| Die size | 122 mm2 | no data |
| Number of transistors | 1,750 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon E3-1245 v5 and EPYC 9645 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 (Uniprocessor) | 2 |
| Socket | FCLGA1151 | SP5 |
| Power consumption (TDP) | 80 Watt | 320 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E3-1245 v5 and EPYC 9645. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Precision Boost 2 | no data | + |
Security technologies
Xeon E3-1245 v5 and EPYC 9645 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| MPX | + | - |
| SGX | Yes with Intel® ME | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E3-1245 v5 and EPYC 9645 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 Xeon E3-1245 v5 and EPYC 9645. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-1866/2133, DDR3L-1333/1600 | DDR5 |
| Maximum memory size | 64 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 34.134 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics P530 | N/A |
| Max video memory | 64 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.15 GHz | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Xeon E3-1245 v5 and EPYC 9645 integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| DVI | + | no data |
Graphics image quality
Maximum display resolutions supported by Xeon E3-1245 v5 and EPYC 9645 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096x2304@24Hz | no data |
| Max resolution over eDP | 4096x2304@60Hz | no data |
| Max resolution over DisplayPort | 4096x2304@60Hz | no data |
| Max resolution over VGA | N/A | no data |
Graphics API support
APIs supported by Xeon E3-1245 v5 and EPYC 9645 integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.4 | no data |
Peripherals
Specifications and connection of peripherals supported by Xeon E3-1245 v5 and EPYC 9645.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 16 | 128 |
Pros & cons summary
| Recency | 19 October 2015 | 10 October 2024 |
| Physical cores | 4 | 96 |
| Threads | 8 | 192 |
| Chip lithography | 14 nm | 3 nm |
| Power consumption (TDP) | 80 Watt | 320 Watt |
Xeon E3-1245 v5 has 300% lower power consumption.
EPYC 9645, on the other hand, has an age advantage of 8 years, 2300% more physical cores and 2300% more threads, and a 366.7% more advanced lithography process.
We couldn't decide between Xeon E3-1245 v5 and EPYC 9645. We've got no test results to judge.
Should you still have questions on choice between Xeon E3-1245 v5 and EPYC 9645, ask them in Comments section, and we shall answer.
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