Core i7-8700B vs Ryzen 9 7950X3D
Core i7-8700B
Popular choices:
Ryzen 9 7950X3D
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 i7-8700B
Performance Per Dollar Ryzen 9 7950X3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-8700B | Ryzen 9 7950X3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($139) | ⚠️ Higher cost ($486) |
| Longevity | ✨ Modern (Coffee Lake (2017−2019) / 14 nm) | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm, 6 nm) |
💎 Value Proposition
| Insight | Core i7-8700B | Ryzen 9 7950X3D |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+51%) |
| Upfront Cost | ✅ More affordable ($139) | ⚠️ Higher cost ($486) |
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 i7-8700B and Ryzen 9 7950X3D
Core i7-8700B
The Core i7-8700B is manufactured by Intel. It was released in 3 April 2018 (7 years ago). It is based on the Coffee Lake (2017−2019) architecture. It features 6 cores and 12 threads. Base frequency is 3.2 GHz, with boost up to 4.6 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 65 Watt. Memory support: DDR4-2666. Passmark benchmark score: 11,795 points. Launch price was $303.
Ryzen 9 7950X3D
The Ryzen 9 7950X3D 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 16 cores and 32 threads. Base frequency is 4.2 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 62,323 points. Launch price was $699.
Processing Power
The Core i7-8700B packs 6 cores / 12 threads, while the Ryzen 9 7950X3D offers 16 cores / 32 threads — the Ryzen 9 7950X3D has 10 more cores. Boost clocks reach 4.6 GHz on the Core i7-8700B versus 5.7 GHz on the Ryzen 9 7950X3D — a 21.4% clock advantage for the Ryzen 9 7950X3D (base: 3.2 GHz vs 4.2 GHz). The Core i7-8700B uses the Coffee Lake (2017−2019) architecture (14 nm), while the Ryzen 9 7950X3D uses Raphael (Zen4) (2022−2023) (5 nm, 6 nm). In PassMark, the Core i7-8700B scores 11,795 against the Ryzen 9 7950X3D's 62,323 — a 136.3% lead for the Ryzen 9 7950X3D. L3 cache: 12 MB (total) on the Core i7-8700B vs 128 MB (total) on the Ryzen 9 7950X3D.
| Feature | Core i7-8700B | Ryzen 9 7950X3D |
|---|---|---|
| Cores / Threads | 6 / 12 | 16 / 32+167% |
| Boost Clock | 4.6 GHz | 5.7 GHz+24% |
| Base Clock | 3.2 GHz | 4.2 GHz+31% |
| L3 Cache | 12 MB (total) | 128 MB (total)+967% |
| L2 Cache | 256K (per core) | 1 MB (per core)+300% |
| Process | 14 nm | 5 nm, 6 nm-64% |
| Architecture | Coffee Lake (2017−2019) | Raphael (Zen4) (2022−2023) |
| PassMark | 11,795 | 62,323+428% |
| Cinebench R23 Multi | — | 38,581 |
| Geekbench 6 Single | — | 2,926 |
| Geekbench 6 Multi | — | 19,643 |
Memory & Platform
The Core i7-8700B uses the BGA1440 socket (PCIe 3.0), while the Ryzen 9 7950X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i7-8700B versus DDR5-5200 on the Ryzen 9 7950X3D — the Ryzen 9 7950X3D supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 7950X3D supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-8700B) vs 28 (Ryzen 9 7950X3D) — the Ryzen 9 7950X3D offers 12 more lanes for additional GPUs or NVMe drives.
| Feature | Core i7-8700B | Ryzen 9 7950X3D |
|---|---|---|
| Socket | BGA1440 | AM5 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | DDR4-2666 | DDR5-5200+25% |
| Max RAM Capacity | 64 GB | 128 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 16 | 28+75% |
Advanced Features
Only the Ryzen 9 7950X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 9 7950X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i7-8700B) vs true (Ryzen 9 7950X3D). Both include integrated graphics — UHD Graphics 630 (Core i7-8700B) and Radeon Graphics (Ryzen 9 7950X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-8700B targets Mobile. Direct competitor: Ryzen 9 7950X3D rivals Core i9-13900K.
| Feature | Core i7-8700B | Ryzen 9 7950X3D |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | UHD Graphics 630 | Radeon Graphics |
| Unlocked | No | Yes |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d | true |
| Target Use | Mobile | — |
Value Analysis
The Core i7-8700B launched at $303 MSRP, while the Ryzen 9 7950X3D debuted at $699. At current prices ($139 vs $486), the Core i7-8700B is $347 cheaper. In terms of value (PassMark points per dollar), the Core i7-8700B delivers 84.9 pts/$ vs 128.2 pts/$ for the Ryzen 9 7950X3D — making the Ryzen 9 7950X3D the 40.7% better value option.
| Feature | Core i7-8700B | Ryzen 9 7950X3D |
|---|---|---|
| MSRP | $303-57% | $699 |
| Avg Price (30d) | $139-71% | $486 |
| Performance per Dollar | 84.9 | 128.2+51% |
| Release Date | 2018 | 2023 |
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