CPU
GPU
Xeon X5647
Celeron G6900
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 Xeon X5647 is positioned at rank #593 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 Xeon X5647
Performance Per Dollar Celeron G6900
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon X5647 | Celeron G6900 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($77) |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | ✨ Modern (Alder Lake-S (2022) / Intel 7 nm) |
💎 Value Proposition
| Insight | Xeon X5647 | Celeron G6900 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($77) |
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 Xeon X5647 and Celeron G6900
Xeon X5647
The Xeon X5647 is manufactured by Intel. It was released in 14 February 2011 (14 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 4 cores and 8 threads. Base frequency is 2.93 GHz, with boost up to 3.2 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 4,441 points. Launch price was $175.
Celeron G6900
The Celeron G6900 is manufactured by Intel. It was released in 2007-01-01. It is based on the Alder Lake-S (2022) architecture. It features 2 cores and 2 threads. Base frequency is 3.4 GHz, with boost up to 3.4 GHz. L3 cache: 4 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 46 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 4,458 points. Launch price was $69.
Processing Power
The Xeon X5647 packs 4 cores / 8 threads, while the Celeron G6900 offers 2 cores / 2 threads — the Xeon X5647 has 2 more cores. Boost clocks reach 3.2 GHz on the Xeon X5647 versus 3.4 GHz on the Celeron G6900 — a 6.1% clock advantage for the Celeron G6900 (base: 2.93 GHz vs 3.4 GHz). The Xeon X5647 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Celeron G6900 uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Xeon X5647 scores 4,441 against the Celeron G6900's 4,458 — a 0.4% lead for the Celeron G6900. L3 cache: 12 MB (total) on the Xeon X5647 vs 4 MB (total) on the Celeron G6900.
| Feature | Xeon X5647 | Celeron G6900 |
|---|---|---|
| Cores / Threads | 4 / 8+100% | 2 / 2 |
| Boost Clock | 3.2 GHz | 3.4 GHz+6% |
| Base Clock | 2.93 GHz | 3.4 GHz+16% |
| L3 Cache | 12 MB (total)+200% | 4 MB (total) |
| L2 Cache | 256 kB (per core) | 1.25 MB (per core)+400% |
| Process | 32 nm | Intel 7 nm-78% |
| Architecture | Westmere-EP (2010−2011) | Alder Lake-S (2022) |
| PassMark | 4,441 | 4,458 |
| Geekbench 6 Single | — | 1,563 |
| Geekbench 6 Multi | — | 2,631 |
Memory & Platform
The Xeon X5647 uses the LGA1366 socket (PCIe 5.0), while the Celeron G6900 uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1066 on the Xeon X5647 versus DDR5-4800 on the Celeron G6900 — the Celeron G6900 supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. Memory channels: 3 (Xeon X5647) vs 2 (Celeron G6900). Chipset compatibility: Intel X58,Intel 5520 (Xeon X5647) and H610,B660,H670,Z690,B760,H770,Z790 (Celeron G6900).
| Feature | Xeon X5647 | Celeron G6900 |
|---|---|---|
| Socket | LGA1366 | LGA1700 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR3-1066 | DDR5-4800+67% |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | 3+50% | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | — | 20 |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Xeon X5647) vs VT-x (Celeron G6900). The Celeron G6900 includes integrated graphics (UHD Graphics 710), while the Xeon X5647 requires a dedicated GPU. Primary use case: Xeon X5647 targets Workstation, Celeron G6900 targets Budget. Direct competitor: Xeon X5647 rivals Core i7-980X; Celeron G6900 rivals Pentium Gold G7400.
| Feature | Xeon X5647 | Celeron G6900 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | UHD Graphics 710 |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | VT-x |
| Target Use | Workstation | Budget |
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