
Pentium Gold G6405T vs Ryzen 7 7800X3D

Pentium Gold G6405T
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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
Performance Per Dollar Ryzen 7 7800X3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium Gold G6405T | Ryzen 7 7800X3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($384) |
| Longevity | ✨ Modern (Comet Lake-R (2021) / 14 nm) | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm) |
💎 Value Proposition
| Insight | Pentium Gold G6405T | Ryzen 7 7800X3D |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ 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 Pentium Gold G6405T and Ryzen 7 7800X3D

Pentium Gold G6405T
The Pentium Gold G6405T is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Comet Lake-R (2021) architecture. It features 2 cores and 4 threads. Base frequency is 3.5 GHz, with boost up to 3.5 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2666. Passmark benchmark score: 3,095 points. Launch price was $64.

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
The Pentium Gold G6405T packs 2 cores / 4 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Ryzen 7 7800X3D has 6 more cores. Boost clocks reach 3.5 GHz on the Pentium Gold G6405T versus 5 GHz on the Ryzen 7 7800X3D — a 35.3% clock advantage for the Ryzen 7 7800X3D (base: 3.5 GHz vs 4.4 GHz). The Pentium Gold G6405T uses the Comet Lake-R (2021) architecture (14 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Pentium Gold G6405T scores 3,095 against the Ryzen 7 7800X3D's 34,293 — a 166.9% lead for the Ryzen 7 7800X3D. L3 cache: 4 MB (total) on the Pentium Gold G6405T vs 96 MB (total) on the Ryzen 7 7800X3D.
| Feature | Pentium Gold G6405T | Ryzen 7 7800X3D |
|---|---|---|
| Cores / Threads | 2 / 4 | 8 / 16+300% |
| Boost Clock | 3.5 GHz | 5 GHz+43% |
| Base Clock | 3.5 GHz | 4.4 GHz+26% |
| L3 Cache | 4 MB (total) | 96 MB (total)+2300% |
| L2 Cache | 256 kB (per core) | 1 MB (per core)+300% |
| Process | 14 nm | 5 nm-64% |
| Architecture | Comet Lake-R (2021) | Raphael (Zen4) (2022−2023) |
| PassMark | 3,095 | 34,293+1008% |
| Cinebench R23 Multi | — | 18,500 |
| Geekbench 6 Single | — | 2,700 |
| Geekbench 6 Multi | — | 15,000 |
Memory & Platform
The Pentium Gold G6405T uses the LGA1200 socket (PCIe 3.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Pentium Gold G6405T | Ryzen 7 7800X3D |
|---|---|---|
| Socket | LGA1200 | 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 (Pentium Gold G6405T) / AMD-V (Ryzen 7 7800X3D). The Ryzen 7 7800X3D includes integrated graphics (AMD Radeon Graphics (2-core)), while the Pentium Gold G6405T requires a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming. Direct competitor: Ryzen 7 7800X3D rivals Intel Core i7-14700K.
| Feature | Pentium Gold G6405T | Ryzen 7 7800X3D |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | AMD Radeon Graphics (2-core) |
| Unlocked | — | Yes |
| AVX-512 | — | Yes |
| Virtualization | — | AMD-V |
| Target Use | — | Gaming |
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