
Celeron B820 vs Ryzen 7 7800X3D

Celeron B820
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. The Celeron B820 is positioned at rank #1109 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 Celeron B820
Performance Per Dollar Ryzen 7 7800X3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron B820 | Ryzen 7 7800X3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($15) | ⚠️ Higher cost ($384) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm) |
💎 Value Proposition
| Insight | Celeron B820 | Ryzen 7 7800X3D |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+75%) |
| Upfront Cost | ✅ More affordable ($15) | ⚠️ 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 Celeron B820 and Ryzen 7 7800X3D

Celeron B820
The Celeron B820 is manufactured by Intel. It was released in 1 July 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.7 GHz, with boost up to 1.7 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 765 points. Launch price was $86.

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 Celeron B820 packs 2 cores / 2 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Ryzen 7 7800X3D has 6 more cores. Boost clocks reach 1.7 GHz on the Celeron B820 versus 5 GHz on the Ryzen 7 7800X3D — a 98.5% clock advantage for the Ryzen 7 7800X3D (base: 1.7 GHz vs 4.4 GHz). The Celeron B820 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Celeron B820 scores 765 against the Ryzen 7 7800X3D's 34,293 — a 191.3% lead for the Ryzen 7 7800X3D. L3 cache: 2 MB (total) on the Celeron B820 vs 96 MB (total) on the Ryzen 7 7800X3D.
| Feature | Celeron B820 | Ryzen 7 7800X3D |
|---|---|---|
| Cores / Threads | 2 / 2 | 8 / 16+300% |
| Boost Clock | 1.7 GHz | 5 GHz+194% |
| Base Clock | 1.7 GHz | 4.4 GHz+159% |
| L3 Cache | 2 MB (total) | 96 MB (total)+4700% |
| L2 Cache | 256K (per core) | 1 MB (per core)+300% |
| Process | 32 nm | 5 nm-84% |
| Architecture | Sandy Bridge (2011−2013) | Raphael (Zen4) (2022−2023) |
| PassMark | 765 | 34,293+4383% |
| Cinebench R23 Multi | — | 18,500 |
| Geekbench 6 Single | — | 2,700 |
| Geekbench 6 Multi | — | 15,000 |
Memory & Platform
The Celeron B820 uses the PGA988 socket (PCIe 2.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Celeron B820 versus DDR5-5200 on the Ryzen 7 7800X3D — the Ryzen 7 7800X3D supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 7800X3D supports up to 128 GB of RAM compared to 16 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Celeron B820) vs 28 (Ryzen 7 7800X3D) — the Ryzen 7 7800X3D offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM65,HM67,QM67,QM77 (Celeron B820) and X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D).
| Feature | Celeron B820 | Ryzen 7 7800X3D |
|---|---|---|
| Socket | PGA988 | AM5 |
| PCIe Generation | PCIe 2.0 | PCIe 5.0+150% |
| Max RAM Speed | DDR3-1333 | DDR5-5200+67% |
| Max RAM Capacity | 16 GB | 128 GB+700% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 16 | 28+75% |
Advanced Features
Only the Ryzen 7 7800X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 7 7800X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x (Celeron B820) vs AMD-V (Ryzen 7 7800X3D). Both include integrated graphics — HD Graphics (Sandy Bridge) (Celeron B820) and AMD Radeon Graphics (2-core) (Ryzen 7 7800X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron B820 targets Budget, Ryzen 7 7800X3D targets Gaming. Direct competitor: Celeron B820 rivals Pentium 967; Ryzen 7 7800X3D rivals Intel Core i7-14700K.
| Feature | Celeron B820 | Ryzen 7 7800X3D |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | HD Graphics (Sandy Bridge) | AMD Radeon Graphics (2-core) |
| Unlocked | No | Yes |
| AVX-512 | No | Yes |
| Virtualization | VT-x | AMD-V |
| Target Use | Budget | Gaming |
Value Analysis
The Celeron B820 launched at $86 MSRP, while the Ryzen 7 7800X3D debuted at $449. At current prices ($15 vs $384), the Celeron B820 is $369 cheaper. In terms of value (PassMark points per dollar), the Celeron B820 delivers 51.0 pts/$ vs 89.3 pts/$ for the Ryzen 7 7800X3D — making the Ryzen 7 7800X3D the 54.6% better value option.
| Feature | Celeron B820 | Ryzen 7 7800X3D |
|---|---|---|
| MSRP | $86-81% | $449 |
| Avg Price (30d) | $15-96% | $384 |
| Performance per Dollar | 51.0 | 89.3+75% |
| Release Date | 2012 | 2023 |
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