Core i7-7820X vs Ryzen 7 7800X3D
Core i7-7820X
Popular choices:
Ryzen 7 7800X3D
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-7820X
Performance Per Dollar Ryzen 7 7800X3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-7820X | Ryzen 7 7800X3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($198) | ⚠️ Higher cost ($384) |
| Longevity | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm) |
💎 Value Proposition
| Insight | Core i7-7820X | Ryzen 7 7800X3D |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+3%) |
| Upfront Cost | ✅ More affordable ($198) | ⚠️ Higher cost ($384) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Core i7-7820X and Ryzen 7 7800X3D
Core i7-7820X
The Core i7-7820X is manufactured by Intel. It was released in 26 June 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.5 GHz. L3 cache: 11 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-2666. Passmark benchmark score: 17,171 points. Launch price was $599.
Ryzen 7 7800X3D
The Ryzen 7 7800X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.
Processing Power
Both the Core i7-7820X and Ryzen 7 7800X3D share an identical 8-core/16-thread configuration. Boost clocks reach 4.5 GHz on the Core i7-7820X versus 5 GHz on the Ryzen 7 7800X3D — a 10.5% clock advantage for the Ryzen 7 7800X3D (base: 3.6 GHz vs 4.4 GHz). The Core i7-7820X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Core i7-7820X scores 17,171 against the Ryzen 7 7800X3D's 34,293 — a 66.5% lead for the Ryzen 7 7800X3D. L3 cache: 11 MB (total) on the Core i7-7820X vs 96 MB (total) on the Ryzen 7 7800X3D.
| Feature | Core i7-7820X | Ryzen 7 7800X3D |
|---|---|---|
| Cores / Threads | 8 / 16 | 8 / 16 |
| Boost Clock | 4.5 GHz | 5 GHz+11% |
| Base Clock | 3.6 GHz | 4.4 GHz+22% |
| L3 Cache | 11 MB (total) | 96 MB (total)+773% |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 14 nm | 5 nm-64% |
| Architecture | Skylake (server) (2017−2018) | Raphael (Zen4) (2022−2023) |
| PassMark | 17,171 | 34,293+100% |
| Cinebench R23 Multi | — | 18,500 |
| Geekbench 6 Single | — | 2,700 |
| Geekbench 6 Multi | — | 15,000 |
Memory & Platform
The Core i7-7820X uses the LGA2066 socket (PCIe 3.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Core i7-7820X | Ryzen 7 7800X3D |
|---|---|---|
| Socket | LGA2066 | AM5 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | — | DDR5-5200 |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 28 |
Advanced Features
Virtualization: not specified (Core i7-7820X) / AMD-V (Ryzen 7 7800X3D). The Ryzen 7 7800X3D includes integrated graphics (AMD Radeon Graphics (2-core)), while the Core i7-7820X requires a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming. Direct competitor: Ryzen 7 7800X3D rivals Intel Core i7-14700K.
| Feature | Core i7-7820X | Ryzen 7 7800X3D |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | AMD Radeon Graphics (2-core) |
| Unlocked | — | Yes |
| AVX-512 | — | Yes |
| Virtualization | — | AMD-V |
| Target Use | — | Gaming |
Value Analysis
The Core i7-7820X launched at $599 MSRP, while the Ryzen 7 7800X3D debuted at $449. At current prices ($198 vs $384), the Core i7-7820X is $186 cheaper. In terms of value (PassMark points per dollar), the Core i7-7820X delivers 86.7 pts/$ vs 89.3 pts/$ for the Ryzen 7 7800X3D — making the Ryzen 7 7800X3D the 2.9% better value option.
| Feature | Core i7-7820X | Ryzen 7 7800X3D |
|---|---|---|
| MSRP | $599 | $449-25% |
| Avg Price (30d) | $198-48% | $384 |
| Performance per Dollar | 86.7 | 89.3+3% |
| Release Date | 2017 | 2023 |
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