Intel Core i7-3820 vs Intel Core i5-661
Comparative analysis of Intel Core i7-3820 and Intel Core i5-661 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics, Graphics interfaces. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).
Differences
Reasons to consider the Intel Core i7-3820
- CPU is newer: launch date 2 year(s) 0 month(s) later
- 2 more cores, run more applications at once: 4 vs 2
- 4 more threads: 8 vs 4
- Around 6% higher clock speed: 3.80 GHz vs 3.60 GHz
- 2x more L1 cache, more data can be stored in the L1 cache for quick access later
- 2x more L2 cache, more data can be stored in the L2 cache for quick access later
- 2.5x more L3 cache, more data can be stored in the L3 cache for quick access later
- 3.9x more maximum memory size: 64.23 GB vs 16.38 GB
- Around 21% better performance in PassMark - Single thread mark: 1745 vs 1448
- 2.3x better performance in PassMark - CPU mark: 5767 vs 2470
- Around 46% better performance in Geekbench 4 - Single Core: 756 vs 518
- 2.6x better performance in Geekbench 4 - Multi-Core: 3163 vs 1214
Specifications (specs) | |
Launch date | February 2012 vs January 2010 |
Number of cores | 4 vs 2 |
Number of threads | 8 vs 4 |
Maximum frequency | 3.80 GHz vs 3.60 GHz |
L1 cache | 64 KB (per core) vs 64 KB (per core) |
L2 cache | 256 KB (per core) vs 256 KB (per core) |
L3 cache | 10240 KB (shared) vs 4096 KB (shared) |
Maximum memory size | 64.23 GB vs 16.38 GB |
Benchmarks | |
PassMark - Single thread mark | 1745 vs 1448 |
PassMark - CPU mark | 5767 vs 2470 |
Geekbench 4 - Single Core | 756 vs 518 |
Geekbench 4 - Multi-Core | 3163 vs 1214 |
Reasons to consider the Intel Core i5-661
- Around 4% higher maximum core temperature: 69.8°C vs 66.8°C
- Around 49% lower typical power consumption: 87 Watt vs 130 Watt
Maximum core temperature | 69.8°C vs 66.8°C |
Thermal Design Power (TDP) | 87 Watt vs 130 Watt |
Compare benchmarks
CPU 1: Intel Core i7-3820
CPU 2: Intel Core i5-661
PassMark - Single thread mark |
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PassMark - CPU mark |
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Geekbench 4 - Single Core |
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Geekbench 4 - Multi-Core |
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Name | Intel Core i7-3820 | Intel Core i5-661 |
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PassMark - Single thread mark | 1745 | 1448 |
PassMark - CPU mark | 5767 | 2470 |
Geekbench 4 - Single Core | 756 | 518 |
Geekbench 4 - Multi-Core | 3163 | 1214 |
3DMark Fire Strike - Physics Score | 3318 | |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 4.665 | |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 84.218 | |
CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.606 | |
CompuBench 1.5 Desktop - Video Composition (Frames/s) | 2.267 | |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 5.758 |
Compare specifications (specs)
Intel Core i7-3820 | Intel Core i5-661 | |
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Essentials |
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Architecture codename | Sandy Bridge E | Clarkdale |
Launch date | February 2012 | January 2010 |
Launch price (MSRP) | $400 | $252 |
Place in performance rating | 2232 | 2243 |
Price now | $199.99 | $99.99 |
Processor Number | i7-3820 | i5-661 |
Series | Intel® Core™ X-series Processors | Legacy Intel® Core™ Processors |
Status | Discontinued | Discontinued |
Value for money (0-100) | 13.26 | 9.35 |
Vertical segment | Desktop | Desktop |
Performance |
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64 bit support | ||
Base frequency | 3.60 GHz | 3.33 GHz |
Bus Speed | 5 GT/s DMI2 | 2.5 GT/s DMI |
Die size | 294 mm | 81 mm2 |
L1 cache | 64 KB (per core) | 64 KB (per core) |
L2 cache | 256 KB (per core) | 256 KB (per core) |
L3 cache | 10240 KB (shared) | 4096 KB (shared) |
Manufacturing process technology | 32 nm | 32 nm |
Maximum case temperature (TCase) | 67 °C | |
Maximum core temperature | 66.8°C | 69.8°C |
Maximum frequency | 3.80 GHz | 3.60 GHz |
Number of cores | 4 | 2 |
Number of threads | 8 | 4 |
Transistor count | 1270 million | 382 million |
VID voltage range | 0.600V – 1.350V | 0.6500V-1.4000V |
Memory |
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Max memory channels | 4 | 2 |
Maximum memory bandwidth | 51.2 GB/s | 21 GB/s |
Maximum memory size | 64.23 GB | 16.38 GB |
Supported memory types | DDR3 1066/1333/1600 | DDR3 1066/1333 |
Compatibility |
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Low Halogen Options Available | ||
Max number of CPUs in a configuration | 1 | 1 |
Package Size | 52.5mm x 45.0mm | 37.5mm x 37.5mm |
Sockets supported | FCLGA2011 | FCLGA1156 |
Thermal Design Power (TDP) | 130 Watt | 87 Watt |
Peripherals |
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Max number of PCIe lanes | 40 | 16 |
PCI Express revision | 2.0 | 2.0 |
PCIe configurations | 1x16, 2x8 | |
Security & Reliability |
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Execute Disable Bit (EDB) | ||
Intel® Identity Protection technology | ||
Intel® Trusted Execution technology (TXT) | ||
Advanced Technologies |
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Enhanced Intel SpeedStep® technology | ||
Idle States | ||
Instruction set extensions | Intel® SSE4.2, Intel® AVX | Intel® SSE4.2 |
Intel 64 | ||
Intel® Advanced Vector Extensions (AVX) | ||
Intel® AES New Instructions | ||
Intel® Demand Based Switching | ||
Intel® Hyper-Threading technology | ||
Intel® Smart Response technology | ||
Intel® Turbo Boost technology | ||
Intel® vPro™ Platform Eligibility | ||
Thermal Monitoring | ||
Flexible Display interface (FDI) | ||
Physical Address Extensions (PAE) | 36-bit | |
Virtualization |
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Intel® Virtualization Technology (VT-x) | ||
Intel® Virtualization Technology for Directed I/O (VT-d) | ||
Intel® VT-x with Extended Page Tables (EPT) | ||
Graphics |
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Graphics base frequency | 900 MHz | |
Intel® Clear Video HD technology | ||
Intel® Flexible Display Interface (Intel® FDI) | ||
Processor graphics | Intel HD Graphics | |
Graphics interfaces |
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Number of displays supported | 2 |