EPYC 7642 vs Turion II Ultra M640
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 133 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 5.08 |
| Market segment | Laptop | Server |
| Series | AMD Turion II Ultra | AMD EPYC |
| Power efficiency | no data | 6.36 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Caspian (2009) | Zen 2 (2017−2020) |
| Release date | 10 September 2009 (16 years ago) | 7 August 2019 (6 years ago) |
| Launch price (MSRP) | no data | $4,775 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Turion II Ultra M640 and EPYC 7642 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 | 2 (Dual-core) | 48 (Octatetraconta-Core) |
| Threads | 2 | 96 |
| Base clock speed | no data | 2.4 GHz |
| Boost clock speed | 2.6 GHz | 3.4 GHz |
| Bus rate | 3600 MHz | no data |
| Multiplier | no data | 23 |
| L1 cache | no data | 96K (per core) |
| L2 cache | 2 MB | 512K (per core) |
| L3 cache | no data | 256 MB (shared) |
| Chip lithography | 45 nm | 7 nm, 14 nm |
| Die size | no data | 192 mm2 |
| Number of transistors | no data | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Turion II Ultra M640 and EPYC 7642 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 | no data | 2 (Multiprocessor) |
| Socket | Socket S1 (s1g3) 638-pin | TR4 |
| Power consumption (TDP) | 35 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Turion II Ultra M640 and EPYC 7642. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization | no data |
| AES-NI | - | + |
| AVX | - | + |
| PowerNow | + | - |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Turion II Ultra M640 and EPYC 7642 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Turion II Ultra M640 and EPYC 7642. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR4 Eight-channel |
| Maximum memory size | no data | 4 TiB |
| Max memory channels | no data | 8 |
| Maximum memory bandwidth | no data | 204.763 GB/s |
| ECC memory support | - | + |
Pros & cons summary
| Recency | 10 September 2009 | 7 August 2019 |
| Physical cores | 2 | 48 |
| Threads | 2 | 96 |
| Chip lithography | 45 nm | 7 nm |
| Power consumption (TDP) | 35 Watt | 225 Watt |
Turion II Ultra M640 has 542.9% lower power consumption.
EPYC 7642, on the other hand, has an age advantage of 9 years, 2300% more physical cores and 4700% more threads, and a 542.9% more advanced lithography process.
We couldn't decide between AMD Turion II Ultra M640 and AMD EPYC 7642. We've got no test results to judge.
Be aware that Turion II Ultra M640 is a notebook processor while EPYC 7642 is a server/workstation one.
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