Core i7-3820 vs Ryzen 5 3450U
Aggregate performance score
Ryzen 5 3450U outperforms i7-3820 by a moderate 17% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 5 3450U and Core i7-3820 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1286 | 1404 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 2.32 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Picasso (Ryzen 3000 APU) | no data |
| Architecture codename | Picasso-U (Zen+) | Sandy Bridge-E (2011−2013) |
| Release date | 1 May 2020 (4 years ago) | February 2012 (12 years ago) |
| Launch price (MSRP) | no data | $400 |
| Current price | no data | $310 (0.8x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 5 3450U and Core i7-3820 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 | 8 |
| Base clock speed | 2.1 GHz | 3.6 GHz |
| Boost clock speed | 3.5 GHz | 3.8 GHz |
| L1 cache | 384 KB | 64 KB (per core) |
| L2 cache | 2 MB | 256 KB (per core) |
| L3 cache | 4 MB | 10240 KB (shared) |
| Chip lithography | 12 nm | 32 nm |
| Die size | no data | 294 mm2 |
| Maximum core temperature | 105 °C | 67 °C |
| Maximum case temperature (TCase) | no data | 67 °C |
| Number of transistors | 4500 Million | 1270 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Ryzen 5 3450U and Core i7-3820 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 | no data | 1 |
| Socket | FP5 | FCLGA2011 |
| Power consumption (TDP) | 15 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 5 3450U and Core i7-3820. You'll probably need this information if you require some particular technology.
| Instruction set extensions | DDR4-2400 RAM, PCIe 3, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | Intel® SSE4.2, Intel® AVX |
| AES-NI | + | + |
| FMA | + | no data |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | no data | + |
| Smart Response | no data | + |
| Demand Based Switching | no data | - |
| Status | no data | Discontinued |
Security technologies
Ryzen 5 3450U and Core i7-3820 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Identity Protection | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 5 3450U and Core i7-3820 are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 5 3450U and Core i7-3820. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR3 |
| Maximum memory size | no data | 64.23 GB |
| Max memory channels | no data | 4 |
| Maximum memory bandwidth | no data | 51.2 GB/s |
| ECC memory support | no data | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon RX Vega 8 (Ryzen 2000/3000) | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 5 3450U and Core i7-3820.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 40 |
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.
Ryzen 5 3450U outperforms Core i7-3820 by 17% 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%
Ryzen 5 3450U outperforms Core i7-3820 by 17% in Passmark.
Pros & cons summary
| Performance score | 4.36 | 3.72 |
| Chip lithography | 12 nm | 32 nm |
| Power consumption (TDP) | 15 Watt | 130 Watt |
The Ryzen 5 3450U is our recommended choice as it beats the Core i7-3820 in performance tests.
Be aware that Ryzen 5 3450U is a notebook processor while Core i7-3820 is a desktop one.
Should you still have questions on choice between Ryzen 5 3450U and Core i7-3820, ask them in Comments section, and we shall answer.
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