Xeon X5550 vs Phenom II X6 1035T
Xeon X5550
Phenom II X6 1035T
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. The Xeon X5550 is positioned at rank 712 and the Phenom II X6 1035T is on rank 192, so the Phenom II X6 1035T offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon X5550
Performance Per Dollar Phenom II X6 1035T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon X5550 | Phenom II X6 1035T |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Gainestown (2009−2010) / 45 nm) | 🛑 Legacy (Thuban (2010) / 45 nm) |
💎 Value Proposition
| Insight | Xeon X5550 | Phenom II X6 1035T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 X5550 and Phenom II X6 1035T
Xeon X5550
The Xeon X5550 is manufactured by Intel. It was released in 30 March 2009 (16 years ago). It is based on the Gainestown (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 2.66 GHz, with boost up to 3.06 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 3,036 points. Launch price was $62.
Phenom II X6 1035T
The Phenom II X6 1035T is manufactured by AMD. It was released in 27 April 2010 (15 years ago). It is based on the Thuban (2010) architecture. It features 6 cores and 6 threads. Base frequency is 2.6 GHz, with boost up to 3.1 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 3,012 points. Launch price was $189.
Processing Power
The Xeon X5550 packs 4 cores / 8 threads, while the Phenom II X6 1035T offers 6 cores / 6 threads — the Phenom II X6 1035T has 2 more cores. Boost clocks reach 3.06 GHz on the Xeon X5550 versus 3.1 GHz on the Phenom II X6 1035T — a 1.3% clock advantage for the Phenom II X6 1035T (base: 2.66 GHz vs 2.6 GHz). The Xeon X5550 uses the Gainestown (2009−2010) architecture (45 nm), while the Phenom II X6 1035T uses Thuban (2010) (45 nm). In PassMark, the Xeon X5550 scores 3,036 against the Phenom II X6 1035T's 3,012 — a 0.8% lead for the Xeon X5550. L3 cache: 8 MB (total) on the Xeon X5550 vs 6 MB (total) on the Phenom II X6 1035T.
| Feature | Xeon X5550 | Phenom II X6 1035T |
|---|---|---|
| Cores / Threads | 4 / 8 | 6 / 6+50% |
| Boost Clock | 3.06 GHz | 3.1 GHz+1% |
| Base Clock | 2.66 GHz+2% | 2.6 GHz |
| L3 Cache | 8 MB (total)+33% | 6 MB (total) |
| L2 Cache | 256 kB (per core) | 512 kB (per core)+100% |
| Process | 45 nm | 45 nm |
| Architecture | Gainestown (2009−2010) | Thuban (2010) |
| PassMark | 3,036 | 3,012 |
| Cinebench R23 Multi | — | 2,670 |
Memory & Platform
The Xeon X5550 uses the LGA1366 socket (PCIe 2.0), while the Phenom II X6 1035T uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1333 memory speed. Memory channels: 3 (Xeon X5550) vs 2 (Phenom II X6 1035T). Chipset compatibility: Intel X58,Intel 5520 (Xeon X5550) and AM3 (Phenom II X6 1035T).
| Feature | Xeon X5550 | Phenom II X6 1035T |
|---|---|---|
| Socket | LGA1366 | AM3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | DDR3-1333 |
| RAM Channels | 3+50% | 2 |
| ECC Support | ✅ | ✅ |
Advanced Features
Only the Phenom II X6 1035T has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d, EPT (Xeon X5550) vs AMD-V (Phenom II X6 1035T). Primary use case: Xeon X5550 targets Workstation, Phenom II X6 1035T targets Budget. Direct competitor: Xeon X5550 rivals Core i3-2100; Phenom II X6 1035T rivals Core i5-750.
| Feature | Xeon X5550 | Phenom II X6 1035T |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d, EPT | AMD-V |
| Target Use | Workstation | Budget |
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