Core i5-4278U vs Core i7-3770K
Aggregate performance score
i7-3770K outperforms i5-4278U by a whopping 128% based on our aggregate benchmark results.
Primary details
Comparing Core i7-3770K and Core i5-4278U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1344 | 1949 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.53 | no data |
| Market segment | Desktop processor | Laptop |
| Series | Intel Core i7 (Desktop) | Intel Core i5 |
| Architecture codename | Ivy Bridge (2012−2013) | Haswell (2013−2015) |
| Release date | 8 April 2012 (12 years ago) | 21 July 2014 (10 years ago) |
| Launch price (MSRP) | $294 | $315 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i7-3770K and Core i5-4278U 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) | 2 (Dual-core) |
| Threads | 8 | 4 |
| Base clock speed | 3.5 GHz | 2.6 GHz |
| Boost clock speed | 3.5 GHz | 3.1 GHz |
| Bus support | 5 GT/s | no data |
| L1 cache | 64 KB (per core) | 128 KB |
| L2 cache | 1 MB | 512 KB |
| L3 cache | 8 MB | 3 MB |
| Chip lithography | 22 nm | 22 nm |
| Die size | 160 mm2 | 181 mm2 |
| Maximum core temperature | 67 °C | 100 °C |
| Maximum case temperature (TCase) | 67 °C | no data |
| Number of transistors | 0 Million | 1300 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | Yes | No |
Compatibility
Information on Core i7-3770K and Core i5-4278U 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 |
| Socket | FCLGA1155 | FCBGA |
| Power consumption (TDP) | 77 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-3770K and Core i5-4278U. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Hyper-Threading Technology | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-3770K and Core i5-4278U are enumerated here.
| AMD-V | no data | + |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-3770K and Core i5-4278U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 32 GB | no data |
| Maximum memory bandwidth | 25.6 GB/s | 25.6 GB/s |
| ECC memory support | - | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics 4000 | Intel Iris Graphics 5100 |
Peripherals
Specifications and connection of peripherals supported by Core i7-3770K and Core i5-4278U.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 16 | 12 |
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 i7-3770K outperforms Core i5-4278U by 128% 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: 65%
Core i7-3770K outperforms Core i5-4278U by 129% 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: 40%
Core i5-4278U outperforms Core i7-3770K by 27% 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: 40%
Core i7-3770K outperforms Core i5-4278U by 38% in GeekBench 5 Multi-Core.
Pros & cons summary
| Performance score | 4.18 | 1.83 |
| Integrated graphics card | 1.18 | 1.82 |
| Recency | 8 April 2012 | 21 July 2014 |
| Physical cores | 4 | 2 |
| Threads | 8 | 4 |
| Power consumption (TDP) | 77 Watt | 28 Watt |
i7-3770K has a 128.4% higher aggregate performance score, and 100% more physical cores and 100% more threads.
i5-4278U, on the other hand, has 54.2% faster integrated GPU, an age advantage of 2 years, and 175% lower power consumption.
The Core i7-3770K is our recommended choice as it beats the Core i5-4278U in performance tests.
Note that Core i7-3770K is a desktop processor while Core i5-4278U is a notebook one.
Should you still have questions on choice between Core i7-3770K and Core i5-4278U, ask them in Comments section, and we shall answer.
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