Phenom II X4 850 vs i7-7820X
Aggregate performance score
Core i7-7820X outperforms Phenom II X4 850 by a whopping 606% 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 | 921 | 2419 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.44 | 0.25 |
| Market segment | Desktop processor | Desktop processor |
| Series | Intel Core i7 | no data |
| Power efficiency | 2.96 | 0.62 |
| Designer | Intel | AMD |
| Manufacturer | Intel | no data |
| Architecture codename | Skylake (server) (2017−2018) | Propus (2009−2011) |
| Release date | 26 June 2017 (8 years ago) | 1 June 2011 (14 years ago) |
| Launch price (MSRP) | $599 | $111 |
Cost-effectiveness evaluation
Performance per price, higher is better.
i7-7820X has 876% better value for money than Phenom II X4 850.
Performance to price scatter graph
Detailed specifications
Core i7-7820X and Phenom II X4 850 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 | 8 (Octa-Core) | 4 (Quad-Core) |
| Threads | 16 | 4 |
| Base clock speed | 3.6 GHz | 3.3 GHz |
| Boost clock speed | 4.5 GHz | 3.3 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 36 | no data |
| L1 cache | 64 KB (per core) | 128 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 11 MB (shared) | 0 KB |
| Chip lithography | 14 nm | 45 nm |
| Die size | no data | 169 mm2 |
| Maximum core temperature | 99 °C | no data |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 300 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i7-7820X and Phenom II X4 850 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) | 140 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-7820X and Phenom II X4 850. 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 i7-7820X and Phenom II X4 850 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-7820X and Phenom II X4 850 are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-7820X and Phenom II X4 850. 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 i7-7820X and Phenom II X4 850.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 28 | 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.
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 | 9.74 | 1.38 |
| Recency | 26 June 2017 | 1 June 2011 |
| Physical cores | 8 | 4 |
| Threads | 16 | 4 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 140 Watt | 95 Watt |
i7-7820X has a 605.8% higher aggregate performance score, an age advantage of 6 years, 100% more physical cores and 300% more threads, and a 221.4% more advanced lithography process.
Phenom II X4 850, on the other hand, has 47.4% lower power consumption.
The Intel Core i7-7820X is our recommended choice as it beats the AMD Phenom II X4 850 in performance tests.
Other comparisons
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