
Xeon X5650

Phenom II X6 1100T BE
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 X5650 is positioned at rank 502 and the Phenom II X6 1100T BE is on rank 22, so the Phenom II X6 1100T BE offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon X5650
Performance Per Dollar Phenom II X6 1100T BE
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon X5650 | Phenom II X6 1100T BE |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($265) |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | 🛑 Legacy (Thuban (2010) / 45 nm) |
💎 Value Proposition
| Insight | Xeon X5650 | Phenom II X6 1100T BE |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ 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 Xeon X5650 and Phenom II X6 1100T BE

Xeon X5650
The Xeon X5650 is manufactured by Intel. It was released in 16 March 2010 (15 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 6 cores and 12 threads. Base frequency is 2.66 GHz, with boost up to 3.06 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 5,742 points. Launch price was $53.

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 Xeon X5650 packs 6 cores / 12 threads, matching the Phenom II X6 1100T BE's 6 cores. Boost clocks reach 3.06 GHz on the Xeon X5650 versus 3.7 GHz on the Phenom II X6 1100T BE — a 18.9% clock advantage for the Phenom II X6 1100T BE (base: 2.66 GHz vs 3.3 GHz). The Xeon X5650 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Phenom II X6 1100T BE uses Thuban (2010) (45 nm). In PassMark, the Xeon X5650 scores 5,742 against the Phenom II X6 1100T BE's 5,745 — a 0.1% lead for the Phenom II X6 1100T BE. L3 cache: 12 MB (total) on the Xeon X5650 vs 6 MB (total) on the Phenom II X6 1100T BE.
| Feature | Xeon X5650 | Phenom II X6 1100T BE |
|---|---|---|
| Cores / Threads | 6 / 12 | 6 / 6 |
| Boost Clock | 3.06 GHz | 3.7 GHz+21% |
| Base Clock | 2.66 GHz | 3.3 GHz+24% |
| L3 Cache | 12 MB (total)+100% | 6 MB (total) |
| L2 Cache | 256 kB (per core) | 512 kB (per core)+100% |
| Process | 32 nm-29% | 45 nm |
| Architecture | Westmere-EP (2010−2011) | Thuban (2010) |
| PassMark | 5,742 | 5,745 |
| Geekbench 6 Single | — | 508 |
Memory & Platform
The Xeon X5650 uses the LGA1366 socket (PCIe 5.0), while the Phenom II X6 1100T BE uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1333 memory speed. Memory channels: 3 (Xeon X5650) vs 2 (Phenom II X6 1100T BE). Chipset compatibility: Intel X58,Intel 5520 (Xeon X5650) and AMD 870,880G,890FX,970,990FX (Phenom II X6 1100T BE).
| Feature | Xeon X5650 | Phenom II X6 1100T BE |
|---|---|---|
| Socket | LGA1366 | AM3 |
| PCIe Generation | PCIe 5.0+150% | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | DDR3-1333 / DDR2-1066 |
| Max RAM Capacity | — | 32 GB |
| RAM Channels | 3+50% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | — | 16 |
Advanced Features
Only the Phenom II X6 1100T BE has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d, EPT (Xeon X5650) vs AMD-V (Phenom II X6 1100T BE). Primary use case: Xeon X5650 targets Workstation, Phenom II X6 1100T BE targets Enthusiast Legacy. Direct competitor: Xeon X5650 rivals Core i7-980X.
| Feature | Xeon X5650 | Phenom II X6 1100T BE |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d, EPT | AMD-V |
| Target Use | Workstation | Enthusiast Legacy |
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