CPU
GPU
Xeon D-1521
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 D-1521 is positioned at rank 505 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 D-1521
Performance Per Dollar Phenom II X6 1100T BE
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon D-1521 | 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 ($241) | ⚠️ Higher cost ($265) |
| Longevity | 🛑 Legacy (Broadwell (2015−2019) / 14 nm) | 🛑 Legacy (Thuban (2010) / 45 nm) |
💎 Value Proposition
| Insight | Xeon D-1521 | Phenom II X6 1100T BE |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+9%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($241) | ⚠️ 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 D-1521 and Phenom II X6 1100T BE
Xeon D-1521
The Xeon D-1521 is manufactured by Intel. It was released in 1 November 2015 (10 years ago). It is based on the Broadwell (2015−2019) architecture. It features 4 cores and 8 threads. Base frequency is 2.4 GHz, with boost up to 2.7 GHz. L3 cache: 1.5 MB (per core). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1667. Thermal design power (TDP): 45 Watt. Memory support: DDR4, DDR3. Passmark benchmark score: 5,703 points. Launch price was $199.
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 D-1521 packs 4 cores / 8 threads, while the Phenom II X6 1100T BE offers 6 cores / 6 threads — the Phenom II X6 1100T BE has 2 more cores. Boost clocks reach 2.7 GHz on the Xeon D-1521 versus 3.7 GHz on the Phenom II X6 1100T BE — a 31.3% clock advantage for the Phenom II X6 1100T BE (base: 2.4 GHz vs 3.3 GHz). The Xeon D-1521 uses the Broadwell (2015−2019) architecture (14 nm), while the Phenom II X6 1100T BE uses Thuban (2010) (45 nm). In PassMark, the Xeon D-1521 scores 5,703 against the Phenom II X6 1100T BE's 5,745 — a 0.7% lead for the Phenom II X6 1100T BE. L3 cache: 1.5 MB (per core) on the Xeon D-1521 vs 6 MB (total) on the Phenom II X6 1100T BE.
| Feature | Xeon D-1521 | Phenom II X6 1100T BE |
|---|---|---|
| Cores / Threads | 4 / 8 | 6 / 6+50% |
| Boost Clock | 2.7 GHz | 3.7 GHz+37% |
| Base Clock | 2.4 GHz | 3.3 GHz+38% |
| L3 Cache | 1.5 MB (per core) | 6 MB (total)+300% |
| L2 Cache | 256K (per core) | 512 kB (per core)+100% |
| Process | 14 nm-69% | 45 nm |
| Architecture | Broadwell (2015−2019) | Thuban (2010) |
| PassMark | 5,703 | 5,745 |
| Geekbench 6 Single | — | 508 |
Memory & Platform
The Xeon D-1521 uses the FCBGA1667 socket (PCIe 3.0), while the Phenom II X6 1100T BE uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon D-1521 | Phenom II X6 1100T BE |
|---|---|---|
| Socket | FCBGA1667 | AM3 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | — | DDR3-1333 / DDR2-1066 |
| Max RAM Capacity | — | 32 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Xeon D-1521) / AMD-V (Phenom II X6 1100T BE). Primary use case: Phenom II X6 1100T BE targets Enthusiast Legacy.
| Feature | Xeon D-1521 | Phenom II X6 1100T BE |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Enthusiast Legacy |
Value Analysis
The Xeon D-1521 launched at $199 MSRP, while the Phenom II X6 1100T BE debuted at $265.
| Feature | Xeon D-1521 | Phenom II X6 1100T BE |
|---|---|---|
| MSRP | $199-25% | $265 |
| Avg Price (30d) | $241 | — |
| Release Date | 2015 | 2010 |
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