Ryzen Threadripper PRO 3945WX vs i7-2840QM
Aggregate performance score
Ryzen Threadripper PRO 3945WX outperforms Core i7-2840QM by a whopping 768% 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 | 2081 | 384 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | Intel Core i7 | AMD Ryzen Threadripper |
| Power efficiency | 2.06 | 2.88 |
| Designer | Intel | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Sandy Bridge (2011−2013) | Castle Peak (2020) |
| Release date | 4 September 2011 (14 years ago) | 14 July 2020 (5 years ago) |
Detailed specifications
Basic parameters of Core i7-2840QM and Ryzen Threadripper PRO 3945WX: 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) | 12 (Dodeca-Core) |
| Threads | 8 | 24 |
| Base clock speed | no data | 4 GHz |
| Boost clock speed | 2.4 GHz | 4.3 GHz |
| Bus type | DMI 2.0 | no data |
| Bus rate | 4 × 5 GT/s | no data |
| Multiplier | 24 | 40 |
| L1 cache | 256 KB | 64 KB (per core) |
| L2 cache | 1 MB | 512 KB (per core) |
| L3 cache | 8 MB | 64 MB |
| Chip lithography | 32 nm | 7 nm, 12 nm |
| Die size | 216 mm2 | 2x 74 mm2 |
| Maximum case temperature (TCase) | no data | 95 °C |
| Number of transistors | 1160 Million | 7,600 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Core i7-2840QM and Ryzen Threadripper PRO 3945WX 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) | 1 |
| Socket | Socket G2 | WRX8 |
| Power consumption (TDP) | 45 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-2840QM and Ryzen Threadripper PRO 3945WX. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
Security technologies
Core i7-2840QM and Ryzen Threadripper PRO 3945WX technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-2840QM and Ryzen Threadripper PRO 3945WX 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 Core i7-2840QM and Ryzen Threadripper PRO 3945WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4-3200 |
| Maximum memory size | 32 GB | 2 TiB |
| Maximum memory bandwidth | 25.598 GB/s | 204.8 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 3000 | N/A |
Peripherals
Specifications and connection of peripherals supported by Core i7-2840QM and Ryzen Threadripper PRO 3945WX.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
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 | 2.20 | 19.10 |
| Recency | 4 September 2011 | 14 July 2020 |
| Physical cores | 4 | 12 |
| Threads | 8 | 24 |
| Chip lithography | 32 nm | 7 nm |
| Power consumption (TDP) | 45 Watt | 280 Watt |
i7-2840QM has 522% lower power consumption.
Ryzen Threadripper PRO 3945WX, on the other hand, has a 768% higher aggregate performance score, an age advantage of 8 years, 200% more physical cores and 200% more threads, and a 357% more advanced lithography process.
The AMD Ryzen Threadripper PRO 3945WX is our recommended choice as it beats the Intel Core i7-2840QM in performance tests.
Be aware that Core i7-2840QM is a notebook processor while Ryzen Threadripper PRO 3945WX 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.
