Xeon D-1521 vs Ryzen 7 3700X
Xeon D-1521
Ryzen 7 3700X
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 D-1521 is positioned at rank #505 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 D-1521
Performance Per Dollar Ryzen 7 3700X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon D-1521 | Ryzen 7 3700X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($241) | ✅ More affordable ($140) |
| Longevity | 🛑 Legacy (Broadwell (2015−2019) / 14 nm) | ✨ Modern (Matisse (Zen 2) (2019−2020) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Xeon D-1521 | Ryzen 7 3700X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+577%) |
| Upfront Cost | ⚠️ Higher cost ($241) | ✅ More affordable ($140) |
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 Ryzen 7 3700X
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.
Ryzen 7 3700X
The Ryzen 7 3700X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 22,430 points. Launch price was $329.
Processing Power
The Xeon D-1521 packs 4 cores / 8 threads, while the Ryzen 7 3700X offers 8 cores / 16 threads — the Ryzen 7 3700X has 4 more cores. Boost clocks reach 2.7 GHz on the Xeon D-1521 versus 4.4 GHz on the Ryzen 7 3700X — a 47.9% clock advantage for the Ryzen 7 3700X (base: 2.4 GHz vs 3.6 GHz). The Xeon D-1521 uses the Broadwell (2015−2019) architecture (14 nm), while the Ryzen 7 3700X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Xeon D-1521 scores 5,703 against the Ryzen 7 3700X's 22,430 — a 118.9% lead for the Ryzen 7 3700X. L3 cache: 1.5 MB (per core) on the Xeon D-1521 vs 32 MB on the Ryzen 7 3700X.
| Feature | Xeon D-1521 | Ryzen 7 3700X |
|---|---|---|
| Cores / Threads | 4 / 8 | 8 / 16+100% |
| Boost Clock | 2.7 GHz | 4.4 GHz+63% |
| Base Clock | 2.4 GHz | 3.6 GHz+50% |
| L3 Cache | 1.5 MB (per core) | 32 MB+2033% |
| L2 Cache | 256K (per core) | 512K (per core)+100% |
| Process | 14 nm | 7 nm, 12 nm-50% |
| Architecture | Broadwell (2015−2019) | Matisse (Zen 2) (2019−2020) |
| PassMark | 5,703 | 22,430+293% |
Memory & Platform
The Xeon D-1521 uses the FCBGA1667 socket (PCIe 3.0), while the Ryzen 7 3700X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Xeon D-1521 | Ryzen 7 3700X |
|---|---|---|
| Socket | FCBGA1667 | AM4 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | — | DDR4-3200 |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 24 |
Value Analysis
The Xeon D-1521 launched at $199 MSRP, while the Ryzen 7 3700X debuted at $329. At current prices ($241 vs $140), the Ryzen 7 3700X is $101 cheaper. In terms of value (PassMark points per dollar), the Xeon D-1521 delivers 23.7 pts/$ vs 160.2 pts/$ for the Ryzen 7 3700X — making the Ryzen 7 3700X the 148.5% better value option.
| Feature | Xeon D-1521 | Ryzen 7 3700X |
|---|---|---|
| MSRP | $199-40% | $329 |
| Avg Price (30d) | $241 | $140-42% |
| Performance per Dollar | 23.7 | 160.2+576% |
| Release Date | 2015 | 2019 |
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