Pentium 2129Y vs Phenom X4 9750B
Pentium 2129Y
Phenom X4 9750B
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 Pentium 2129Y is positioned at rank 590 and the Phenom X4 9750B is on rank 1047, so the Pentium 2129Y offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium 2129Y
Performance Per Dollar Phenom X4 9750B
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium 2129Y | Phenom X4 9750B |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($34) |
| Longevity | 🛑 Legacy (Ivy Bridge (2012−2013) / 22 nm) | 🛑 Legacy (Agena (2007−2008) / 65 nm) |
💎 Value Proposition
| Insight | Pentium 2129Y | Phenom X4 9750B |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($34) |
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 Pentium 2129Y and Phenom X4 9750B
Pentium 2129Y
The Pentium 2129Y is manufactured by Intel. It was released in 1 September 2012 (13 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.1 GHz, with boost up to 1.1 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: BGA1023. Thermal design power (TDP): 10 Watt. Memory support: DDR3. Passmark benchmark score: 1,502 points. Launch price was $150.
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.
Processing Power
The Pentium 2129Y packs 2 cores / 2 threads, while the Phenom X4 9750B offers 4 cores / 4 threads — the Phenom X4 9750B has 2 more cores. Boost clocks reach 1.1 GHz on the Pentium 2129Y versus 2.4 GHz on the Phenom X4 9750B — a 74.3% clock advantage for the Phenom X4 9750B. The Pentium 2129Y uses the Ivy Bridge (2012−2013) architecture (22 nm), while the Phenom X4 9750B uses Agena (2007−2008) (65 nm). In PassMark, the Pentium 2129Y scores 1,502 against the Phenom X4 9750B's 1,520 — a 1.2% lead for the Phenom X4 9750B. Both processors carry 2 MB (total) of L3 cache.
| Feature | Pentium 2129Y | Phenom X4 9750B |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 1.1 GHz | 2.4 GHz+118% |
| Base Clock | 1.1 GHz | — |
| L3 Cache | 2 MB (total) | 2 MB (total) |
| L2 Cache | 256K (per core) | 512 kB (per core)+100% |
| Process | 22 nm-66% | 65 nm |
| Architecture | Ivy Bridge (2012−2013) | Agena (2007−2008) |
| PassMark | 1,502 | 1,520+1% |
| Geekbench 6 Single | — | 300 |
| Geekbench 6 Multi | — | 1,000 |
Memory & Platform
The Pentium 2129Y uses the BGA1023 socket (PCIe 3.0), while the Phenom X4 9750B uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium 2129Y | Phenom X4 9750B |
|---|---|---|
| Socket | BGA1023 | AM2+ |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | — | DDR2-1066 |
| Max RAM Capacity | — | 8 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Pentium 2129Y) / AMD-V (Phenom X4 9750B). Primary use case: Phenom X4 9750B targets Legacy Desktop.
| Feature | Pentium 2129Y | Phenom X4 9750B |
|---|---|---|
| Integrated GPU | — | No |
| IGPU Model | — | None |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Legacy Desktop |
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