Intel Core i7-7800X vs Intel Core i5-8400
Comparative analysis of Intel Core i7-7800X and Intel Core i5-8400 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 i7-7800X
- CPU is newer: launch date 4 month(s) later
- Processor is unlocked, an unlocked multiplier allows for easier overclocking
- 6 more threads: 12 vs 6
- Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
- Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
- Around 40% better performance in PassMark - CPU mark: 12883 vs 9235
- Around 6% better performance in Geekbench 4 - Single Core: 1109 vs 1048
- Around 45% better performance in Geekbench 4 - Multi-Core: 6640 vs 4580
- Around 80% better performance in 3DMark Fire Strike - Physics Score: 6534 vs 3633
| Specifications (specs) | |
| Launch date | June 2017 vs 5 January 2017 |
| Unlocked | Unlocked vs Locked |
| Number of threads | 12 vs 6 |
| L1 cache | 64 KB (per core) vs 256 KB |
| L2 cache | 256 KB (per core) vs 1 MB |
| Benchmarks | |
| PassMark - Single thread mark | 2389 vs 2380 |
| PassMark - CPU mark | 12883 vs 9235 |
| Geekbench 4 - Single Core | 1109 vs 1048 |
| Geekbench 4 - Multi-Core | 6640 vs 4580 |
| 3DMark Fire Strike - Physics Score | 6534 vs 3633 |
Reasons to consider the Intel Core i5-8400
- Around 9% more L3 cache; more data can be stored in the L3 cache for quick access later
- 2.2x lower typical power consumption: 65 Watt vs 140 Watt
| L3 cache | 9 MB vs 8448 KB (shared) |
| Thermal Design Power (TDP) | 65 Watt vs 140 Watt |
Compare benchmarks
CPU 1: Intel Core i7-7800X
CPU 2: Intel Core i5-8400
| 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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| Name | Intel Core i7-7800X | Intel Core i5-8400 |
|---|---|---|
| PassMark - Single thread mark | 2389 | 2380 |
| PassMark - CPU mark | 12883 | 9235 |
| Geekbench 4 - Single Core | 1109 | 1048 |
| Geekbench 4 - Multi-Core | 6640 | 4580 |
| 3DMark Fire Strike - Physics Score | 6534 | 3633 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 5.68 | |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 73.097 | |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.752 | |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 3.767 | |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 10.333 | |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 1826 | |
| GFXBench 4.0 - Manhattan (Frames) | 3900 | |
| GFXBench 4.0 - T-Rex (Frames) | 6201 | |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 1826 | |
| GFXBench 4.0 - Manhattan (Fps) | 3900 | |
| GFXBench 4.0 - T-Rex (Fps) | 6201 |
Compare specifications (specs)
| Intel Core i7-7800X | Intel Core i5-8400 | |
|---|---|---|
Essentials |
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| Architecture codename | Skylake | Coffee Lake |
| Launch date | June 2017 | 5 January 2017 |
| Launch price (MSRP) | $416 | $190 |
| Place in performance rating | 1150 | 1142 |
| Price now | $378.99 | $259 |
| Processor Number | i7-7800X | i5-8400 |
| Series | Intel® Core™ X-series Processors | 8th Generation Intel® Core™ i5 Processors |
| Status | Launched | Launched |
| Value for money (0-100) | 11.29 | 13.28 |
| Vertical segment | Desktop | Desktop |
Performance |
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| 64 bit support | ||
| Base frequency | 3.50 GHz | 2.80 GHz |
| Bus Speed | 8 GT/s DMI3 | 8 GT/s DMI3 |
| L1 cache | 64 KB (per core) | 256 KB |
| L2 cache | 256 KB (per core) | 1 MB |
| L3 cache | 8448 KB (shared) | 9 MB |
| Manufacturing process technology | 14 nm | 14 nm |
| Maximum case temperature (TCase) | 72 °C | 72 °C |
| Maximum core temperature | 100°C | 100°C |
| Maximum frequency | 4.00 GHz | 4.00 GHz |
| Number of cores | 6 | 6 |
| Number of QPI Links | 0 | |
| Number of threads | 12 | 6 |
| Unlocked | ||
Memory |
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| Max memory channels | 4 | 2 |
| Maximum memory size | 128 GB | 128 GB |
| Supported memory types | DDR4-2400 | DDR4-2666 |
| Maximum memory bandwidth | 41.6 GB/s | |
Compatibility |
||
| 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) | ||
| AMD Virtualization (AMD-V™) | ||
| Intel® VT-x with Extended Page Tables (EPT) | ||
Graphics |
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| Device ID | 0x3E92 | |
| Graphics base frequency | 350 MHz | |
| Graphics max dynamic frequency | 1.05 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® UHD 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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