Core i5-7640X vs Core i5-8279U
Aggregate performance score
i5-8279U outperforms i5-7640X by a small 9% based on our aggregate benchmark results.
Primary details
Comparing Core i5-8279U and Core i5-7640X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1205 | 1293 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 2.57 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Core i5 | Intel Core i5 |
| Architecture codename | Coffee Lake-U (2018−2019) | Kaby Lake-X (2017) |
| Release date | 3 April 2019 (5 years ago) | 30 May 2017 (7 years ago) |
| Launch price (MSRP) | no data | $242 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i5-8279U and Core i5-7640X 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) | 4 (Quad-Core) |
| Threads | 8 | 4 |
| Base clock speed | 2.4 GHz | 3.9 GHz |
| Boost clock speed | 4.1 GHz | 4 GHz |
| Bus support | no data | 4 × 8 GT/s |
| L1 cache | 256 KB | 256 KB |
| L2 cache | 1 MB | 1 MB |
| L3 cache | 6 MB | 6 MB (shared) |
| Chip lithography | 14 nm | 14 nm |
| Die size | 126 mm2 | no data |
| Maximum core temperature | 100 °C | no data |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | 2,300 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | No | Yes |
Compatibility
Information on Core i5-8279U and Core i5-7640X 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 | 1 (Uniprocessor) |
| Socket | FCBGA1528 | 2066 |
| Power consumption (TDP) | 28 Watt | 112 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-8279U and Core i5-7640X. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Hyper-Threading Technology | + | no data |
| TSX | + | + |
Security technologies
Core i5-8279U and Core i5-7640X technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-8279U and Core i5-7640X are enumerated here.
| AMD-V | + | no data |
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i5-8279U and Core i5-7640X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4 Quad-channel |
| Maximum memory size | no data | 64 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | 37.5 GB/s | 42.671 GB/s |
| ECC memory support | - | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Iris Plus Graphics 655 | HD 630 |
Peripherals
Specifications and connection of peripherals supported by Core i5-8279U and Core i5-7640X.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 16 | 16 |
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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Core i5-8279U outperforms Core i5-7640X by 9% based on our aggregate benchmark results.
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.
Benchmark coverage: 68%
Core i5-8279U outperforms Core i5-7640X by 9% in Passmark.
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.
Benchmark coverage: 41%
Core i5-7640X outperforms Core i5-8279U by 46% in GeekBench 5 Single-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.
Benchmark coverage: 41%
Core i5-7640X outperforms Core i5-8279U by 40% in GeekBench 5 Multi-Core.
Pros & cons summary
| Performance score | 4.82 | 4.42 |
| Recency | 3 April 2019 | 30 May 2017 |
| Threads | 8 | 4 |
| Power consumption (TDP) | 28 Watt | 112 Watt |
i5-8279U has a 9% higher aggregate performance score, an age advantage of 1 year, 100% more threads, and 300% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Core i5-8279U and Core i5-7640X.
Be aware that Core i5-8279U is a notebook processor while Core i5-7640X is a desktop one.
Should you still have questions on choice between Core i5-8279U and Core i5-7640X, ask them in Comments section, and we shall answer.
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