
Phenom X4 9750B vs Athlon 64 X2 5200+

Phenom X4 9750B

Athlon 64 X2 5200+
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 Phenom X4 9750B is positioned at rank 1047 and the Athlon 64 X2 5200+ is on rank 1082, so the Phenom X4 9750B offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Phenom X4 9750B
Performance Per Dollar Athlon 64 X2 5200+
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Phenom X4 9750B | Athlon 64 X2 5200+ |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($34) | ✅ More affordable ($15) |
| Longevity | 🛑 Legacy (Agena (2007−2008) / 65 nm) | 🛑 Legacy (Windsor (2006−2007) / 90 nm) |
💎 Value Proposition
| Insight | Phenom X4 9750B | Athlon 64 X2 5200+ |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+124%) |
| Upfront Cost | ⚠️ Higher cost ($34) | ✅ More affordable ($15) |
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 Phenom X4 9750B and Athlon 64 X2 5200+

Phenom X4 9750B
The Phenom X4 9750B is manufactured by AMD. It was released in 2009-01-01. It is based on the Agena (2007−2008) architecture. It features 4 cores and 4 threads. Max frequency: 2.4 GHz. L3 cache: 2 MB (total). L2 cache: 512 kB (per core). Built on 65 nm process technology. Socket: AM2+. Thermal design power (TDP): 95 Watt. Passmark benchmark score: 1,520 points. Launch price was $149.

Athlon 64 X2 5200+
The Athlon 64 X2 5200+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Windsor (2006−2007) architecture. It features 2 cores and 2 threads. Max frequency: 2.7 GHz. L3 cache: 0 kB. L2 cache: 512K. Built on 90 nm process technology. Socket: AM2. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 1,505 points. Launch price was $149.
Processing Power
The Phenom X4 9750B packs 4 cores / 4 threads, while the Athlon 64 X2 5200+ offers 2 cores / 2 threads — the Phenom X4 9750B has 2 more cores. Boost clocks reach 2.4 GHz on the Phenom X4 9750B versus 2.7 GHz on the Athlon 64 X2 5200+ — a 11.8% clock advantage for the Athlon 64 X2 5200+. The Phenom X4 9750B uses the Agena (2007−2008) architecture (65 nm), while the Athlon 64 X2 5200+ uses Windsor (2006−2007) (90 nm). In PassMark, the Phenom X4 9750B scores 1,520 against the Athlon 64 X2 5200+'s 1,505 — a 1% lead for the Phenom X4 9750B. L3 cache: 2 MB (total) on the Phenom X4 9750B vs 0 kB on the Athlon 64 X2 5200+.
| Feature | Phenom X4 9750B | Athlon 64 X2 5200+ |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 2.4 GHz | 2.7 GHz+13% |
| L3 Cache | 2 MB (total) | 0 kB |
| L2 Cache | 512 kB (per core) | 512K |
| Process | 65 nm-28% | 90 nm |
| Architecture | Agena (2007−2008) | Windsor (2006−2007) |
| PassMark | 1,520 | 1,505 |
| Geekbench 6 Single | 300 | — |
| Geekbench 6 Multi | 1,000 | — |
Memory & Platform
The Phenom X4 9750B uses the AM2+ socket (PCIe 2.0), while the Athlon 64 X2 5200+ uses AM2 (PCIe 1.1) — making them incompatible on the same motherboard. Both support up to DDR2-1066 memory speed. The Athlon 64 X2 5200+ supports up to 16 GB of RAM compared to 8 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Phenom X4 9750B) vs 0 (Athlon 64 X2 5200+) — the Phenom X4 9750B offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM2+,AM2 (Phenom X4 9750B) and AMD AM2 (Athlon 64 X2 5200+).
| Feature | Phenom X4 9750B | Athlon 64 X2 5200+ |
|---|---|---|
| Socket | AM2+ | AM2 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR2-1066 | DDR2-800 |
| Max RAM Capacity | 8 GB | 16 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 0 |
Advanced Features
Virtualization: AMD-V (Phenom X4 9750B) / not specified (Athlon 64 X2 5200+). Primary use case: Phenom X4 9750B targets Legacy Desktop.
| Feature | Phenom X4 9750B | Athlon 64 X2 5200+ |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Legacy Desktop | — |
Value Analysis
The Phenom X4 9750B launched at $215 MSRP, while the Athlon 64 X2 5200+ debuted at $420. At current prices ($34 vs $15), the Athlon 64 X2 5200+ is $19 cheaper. In terms of value (PassMark points per dollar), the Phenom X4 9750B delivers 44.7 pts/$ vs 100.3 pts/$ for the Athlon 64 X2 5200+ — making the Athlon 64 X2 5200+ the 76.7% better value option.
| Feature | Phenom X4 9750B | Athlon 64 X2 5200+ |
|---|---|---|
| MSRP | $215-49% | $420 |
| Avg Price (30d) | $34 | $15-56% |
| Performance per Dollar | 44.7 | 100.3+124% |
| Release Date | 2008 | 2006 |
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