Intel Core i7-7820X vs Intel Core i5-7400
Comparative analysis of Intel Core i7-7820X and Intel Core i5-7400 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics, Graphics interfaces, Graphics image quality, Graphics API support. 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), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).
Differences
Reasons to consider the Intel Core i7-7820X
- CPU is newer: launch date 5 month(s) later
- Processor is unlocked, an unlocked multiplier allows for easier overclocking
- 4 more cores, run more applications at once: 8 vs 4
- 12 more threads: 16 vs 4
- Around 23% higher clock speed: 4.30 GHz vs 3.50 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
- Around 83% more L3 cache; more data can be stored in the L3 cache for quick access later
- 2x more maximum memory size: 128 GB vs 64 GB
- Around 21% better performance in PassMark - Single thread mark: 2520 vs 2078
- 3.1x better performance in PassMark - CPU mark: 17168 vs 5477
- Around 29% better performance in Geekbench 4 - Single Core: 1138 vs 881
- 3.2x better performance in Geekbench 4 - Multi-Core: 8814 vs 2786
- 2.9x better performance in 3DMark Fire Strike - Physics Score: 5958 vs 2078
- 3x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 10.666 vs 3.523
- 2.1x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 159.198 vs 74.155
- 2.1x better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.92 vs 0.441
- 2.7x better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 5.968 vs 2.201
- 2.8x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 16.376 vs 5.905
| Specifications (specs) | |
| Launch date | June 2017 vs January 2017 |
| Unlocked | Unlocked vs Locked |
| Number of cores | 8 vs 4 |
| Number of threads | 16 vs 4 |
| Maximum frequency | 4.30 GHz vs 3.50 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 | 11264 KB (shared) vs 6144 KB (shared) |
| Maximum memory size | 128 GB vs 64 GB |
| Benchmarks | |
| PassMark - Single thread mark | 2520 vs 2078 |
| PassMark - CPU mark | 17168 vs 5477 |
| Geekbench 4 - Single Core | 1138 vs 881 |
| Geekbench 4 - Multi-Core | 8814 vs 2786 |
| 3DMark Fire Strike - Physics Score | 5958 vs 2078 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 10.666 vs 3.523 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 159.198 vs 74.155 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.92 vs 0.441 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 5.968 vs 2.201 |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 16.376 vs 5.905 |
Reasons to consider the Intel Core i5-7400
- Around 1% higher maximum core temperature: 100°C vs 99°C
- 2.2x lower typical power consumption: 65 Watt vs 140 Watt
| Maximum core temperature | 100°C vs 99°C |
| Thermal Design Power (TDP) | 65 Watt vs 140 Watt |
Compare benchmarks
CPU 1: Intel Core i7-7820X
CPU 2: Intel Core i5-7400
| 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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| 3DMark Fire Strike - Physics Score |
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| CompuBench 1.5 Desktop - Face Detection (mPixels/s) |
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| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) |
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| CompuBench 1.5 Desktop - T-Rex (Frames/s) |
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| CompuBench 1.5 Desktop - Video Composition (Frames/s) |
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| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) |
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| Name | Intel Core i7-7820X | Intel Core i5-7400 |
|---|---|---|
| PassMark - Single thread mark | 2520 | 2078 |
| PassMark - CPU mark | 17168 | 5477 |
| Geekbench 4 - Single Core | 1138 | 881 |
| Geekbench 4 - Multi-Core | 8814 | 2786 |
| 3DMark Fire Strike - Physics Score | 5958 | 2078 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 10.666 | 3.523 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 159.198 | 74.155 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.92 | 0.441 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 5.968 | 2.201 |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 16.376 | 5.905 |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 1706 | |
| GFXBench 4.0 - Manhattan (Frames) | 3128 | |
| GFXBench 4.0 - T-Rex (Frames) | 5712 | |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 1706 | |
| GFXBench 4.0 - Manhattan (Fps) | 3128 | |
| GFXBench 4.0 - T-Rex (Fps) | 5712 |
Compare specifications (specs)
| Intel Core i7-7820X | Intel Core i5-7400 | |
|---|---|---|
Essentials |
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| Architecture codename | Skylake | Kaby Lake |
| Launch date | June 2017 | January 2017 |
| Launch price (MSRP) | $679 | $202 |
| Place in performance rating | 1388 | 1394 |
| Price now | $499.99 | $208.31 |
| Processor Number | i7-7820X | i5-7400 |
| Series | Intel® Core™ X-series Processors | 7th Generation Intel® Core™ i5 Processors |
| Status | Launched | Launched |
| Value for money (0-100) | 10.93 | 10.39 |
| Vertical segment | Desktop | Desktop |
Performance |
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| 64 bit support | ||
| Base frequency | 3.60 GHz | 3.00 GHz |
| Bus Speed | 8 GT/s DMI3 | 8 GT/s DMI3 |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 256 KB (per core) |
| L3 cache | 11264 KB (shared) | 6144 KB (shared) |
| Manufacturing process technology | 14 nm | 14 nm |
| Maximum case temperature (TCase) | 72 °C | 72 °C |
| Maximum core temperature | 99°C | 100°C |
| Maximum frequency | 4.30 GHz | 3.50 GHz |
| Number of cores | 8 | 4 |
| Number of QPI Links | 0 | 0 |
| Number of threads | 16 | 4 |
| Unlocked | ||
Memory |
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| Max memory channels | 4 | 2 |
| Maximum memory size | 128 GB | 64 GB |
| Supported memory types | DDR4-2666 | DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V |
Compatibility |
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| Low Halogen Options Available | ||
| Max number of CPUs in a configuration | 1 | 1 |
| Sockets supported | FCLGA2066 | FCLGA1151 |
| Thermal Design Power (TDP) | 140 Watt | 65 Watt |
| Thermal Solution | PCG 2017X | PCG 2015C (65W) |
| Package Size | 37.5mm x 37.5mm | |
Peripherals |
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| Max number of PCIe lanes | 28 | 16 |
| PCI Express revision | 3.0 | 3.0 |
| Scalability | 1S Only | 1S Only |
| PCIe configurations | Up to 1x16, 2x8, 1x8+2x4 | |
Security & Reliability |
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| Execute Disable Bit (EDB) | ||
| Intel® Trusted Execution technology (TXT) | ||
| Intel® Identity Protection technology | ||
| Intel® Memory Protection Extensions (Intel® MPX) | ||
| Intel® OS Guard | ||
| Intel® Secure Key technology | ||
| Intel® Software Guard Extensions (Intel® SGX) | ||
| Secure Boot | ||
Advanced Technologies |
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| Enhanced Intel SpeedStep® technology | ||
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| Intel 64 | ||
| Intel® Advanced Vector Extensions (AVX) | ||
| Intel® AES New Instructions | ||
| Intel® Hyper-Threading technology | ||
| Intel® Optane™ Memory Supported | ||
| Intel® Turbo Boost technology | ||
| Number of AVX-512 FMA Units | 2 | |
| Idle States | ||
| Intel® Stable Image Platform Program (SIPP) | ||
| Intel® TSX-NI | ||
| Intel® vPro™ Platform Eligibility | ||
| Thermal Monitoring | ||
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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| Device ID | 0x5912 | |
| Graphics base frequency | 350 MHz | |
| Graphics max dynamic frequency | 1.00 GHz | |
| Graphics max frequency | 1 GHz | |
| Intel® Clear Video HD technology | ||
| Intel® Clear Video technology | ||
| Intel® InTru™ 3D technology | ||
| Intel® Quick Sync Video | ||
| Max video memory | 64 GB | |
| Processor graphics | Intel® HD Graphics 630 | |
Graphics interfaces |
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| Number of displays supported | 3 | |
Graphics image quality |
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| 4K resolution support | ||
| Max resolution over DisplayPort | 4096x2304@60Hz | |
| Max resolution over eDP | 4096x2304@60Hz | |
| Max resolution over HDMI 1.4 | 4096x2304@24Hz | |
Graphics API support |
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| DirectX | 12 | |
| OpenGL | 4.5 | |
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