Ryzen 7 5800X vs Phenom II X6 1100T BE
Ryzen 7 5800X
Phenom II X6 1100T BE
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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 Ryzen 7 5800X
Performance Per Dollar Phenom II X6 1100T BE
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 5800X | Phenom II X6 1100T BE |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($180) | ⚠️ Higher cost ($265) |
| Longevity | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) | 🛑 Legacy (Thuban (2010) / 45 nm) |
💎 Value Proposition
| Insight | Ryzen 7 5800X | Phenom II X6 1100T BE |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+610%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($180) | ⚠️ Higher cost ($265) |
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 Ryzen 7 5800X and Phenom II X6 1100T BE
Ryzen 7 5800X
The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.
Phenom II X6 1100T BE
The Phenom II X6 1100T BE is manufactured by AMD. It was released in 2009-01-01. It is based on the Thuban (2010) architecture. It features 6 cores and 6 threads. Base frequency is 3.3 GHz, with boost up to 3.7 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 125 Watt. Memory support: DDR3. Passmark benchmark score: 5,745 points. Launch price was $149.
Processing Power
The Ryzen 7 5800X packs 8 cores / 16 threads, while the Phenom II X6 1100T BE offers 6 cores / 6 threads — the Ryzen 7 5800X has 2 more cores. Boost clocks reach 4.7 GHz on the Ryzen 7 5800X versus 3.7 GHz on the Phenom II X6 1100T BE — a 23.8% clock advantage for the Ryzen 7 5800X (base: 3.8 GHz vs 3.3 GHz). The Ryzen 7 5800X uses the Vermeer (Zen 3) (2020−2022) architecture (7 nm, 12 nm), while the Phenom II X6 1100T BE uses Thuban (2010) (45 nm). In PassMark, the Ryzen 7 5800X scores 27,712 against the Phenom II X6 1100T BE's 5,745 — a 131.3% lead for the Ryzen 7 5800X. L3 cache: 32 MB on the Ryzen 7 5800X vs 6 MB (total) on the Phenom II X6 1100T BE.
| Feature | Ryzen 7 5800X | Phenom II X6 1100T BE |
|---|---|---|
| Cores / Threads | 8 / 16+33% | 6 / 6 |
| Boost Clock | 4.7 GHz+27% | 3.7 GHz |
| Base Clock | 3.8 GHz+15% | 3.3 GHz |
| L3 Cache | 32 MB+433% | 6 MB (total) |
| L2 Cache | 512K (per core) | 512 kB (per core) |
| Process | 7 nm, 12 nm-84% | 45 nm |
| Architecture | Vermeer (Zen 3) (2020−2022) | Thuban (2010) |
| PassMark | 27,712+382% | 5,745 |
| Geekbench 6 Single | — | 508 |
Memory & Platform
The Ryzen 7 5800X uses the AM4 socket (PCIe 4.0), while the Phenom II X6 1100T BE uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 7 5800X versus DDR3-1333 / DDR2-1066 on the Phenom II X6 1100T BE — the Ryzen 7 5800X supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 5800X supports up to 128 GB of RAM compared to 32 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 7 5800X) vs 16 (Phenom II X6 1100T BE) — the Ryzen 7 5800X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X) and AMD 870,880G,890FX,970,990FX (Phenom II X6 1100T BE).
| Feature | Ryzen 7 5800X | Phenom II X6 1100T BE |
|---|---|---|
| Socket | AM4 | AM3 |
| PCIe Generation | PCIe 4.0+100% | PCIe 2.0 |
| Max RAM Speed | DDR4-3200+33% | DDR3-1333 / DDR2-1066 |
| Max RAM Capacity | 128 GB+300% | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 24+50% | 16 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Both support AMD-V virtualization. Primary use case: Ryzen 7 5800X targets Desktop, Phenom II X6 1100T BE targets Enthusiast Legacy.
| Feature | Ryzen 7 5800X | Phenom II X6 1100T BE |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | Yes | Yes |
| AVX-512 | No | No |
| Virtualization | AMD-V | AMD-V |
| Target Use | Desktop | Enthusiast Legacy |
Value Analysis
The Ryzen 7 5800X launched at $449 MSRP, while the Phenom II X6 1100T BE debuted at $265.
| Feature | Ryzen 7 5800X | Phenom II X6 1100T BE |
|---|---|---|
| MSRP | $449 | $265-41% |
| Avg Price (30d) | $180 | — |
| Release Date | 2020 | 2010 |
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