Phenom II X4 B97 vs i9-7940X
Aggregate performance score
Core i9-7940X outperforms Phenom II X4 B97 by a whopping 913% 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 | 516 | 2321 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.35 | 2.36 |
| Market segment | Desktop processor | Desktop processor |
| Series | Intel Core i9 | no data |
| Power efficiency | 3.74 | 0.64 |
| Designer | Intel | AMD |
| Manufacturer | Intel | no data |
| Architecture codename | Skylake (server) (2017−2018) | Deneb (2009−2011) |
| Release date | 1 September 2017 (7 years ago) | 11 May 2010 (15 years ago) |
| Launch price (MSRP) | $1,399 | $100 |
Cost-effectiveness evaluation
Performance per price, higher is better.
i9-7940X and Phenom II X4 B97 have a nearly equal value for money.
Performance to price scatter graph
Detailed specifications
Core i9-7940X and Phenom II X4 B97 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 | 14 (Tetradeca-Core) | 4 (Quad-Core) |
| Threads | 28 | 4 |
| Base clock speed | 3.1 GHz | 3.2 GHz |
| Boost clock speed | 4.4 GHz | 3.2 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| L1 cache | 64 KB (per core) | 128 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 19.25 MB (shared) | 6 MB (shared) |
| Chip lithography | 14 nm | 45 nm |
| Die size | 484 mm2 | 258 mm2 |
| Maximum core temperature | 102 °C | no data |
| Number of transistors | no data | 758 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-7940X and Phenom II X4 B97 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 | FCLGA2066 | AM3 |
| Power consumption (TDP) | 165 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-7940X and Phenom II X4 B97. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Turbo Boost Max 3.0 | + | no data |
Security technologies
Core i9-7940X and Phenom II X4 B97 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-7940X and Phenom II X4 B97 are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-7940X and Phenom II X4 B97. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR3 |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 85.33 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | no data |
Peripherals
Specifications and connection of peripherals supported by Core i9-7940X and Phenom II X4 B97.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 44 | no data |
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. Other than that, Passmark measures multi-core performance.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Performance score | 14.59 | 1.44 |
| Recency | 1 September 2017 | 11 May 2010 |
| Physical cores | 14 | 4 |
| Threads | 28 | 4 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 165 Watt | 95 Watt |
i9-7940X has a 913.2% higher aggregate performance score, an age advantage of 7 years, 250% more physical cores and 600% more threads, and a 221.4% more advanced lithography process.
Phenom II X4 B97, on the other hand, has 73.7% lower power consumption.
The Intel Core i9-7940X is our recommended choice as it beats the AMD Phenom II X4 B97 in performance tests.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
