Athlon II Neo K145
Sempron 145
Athlon II Neo K145 vs Sempron 145 Performance Spectrum
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.
Athlon II Neo K145 vs Sempron 145 FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Athlon II Neo K145 vs Sempron 145: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Athlon II Neo K145
2010Why buy it
- ✅+3.9% higher PassMark.
- ✅Draws 1W instead of 45W, a 44W reduction.
Trade-offs
- ❌Launch MSRP is still $50 MSRP, while Sempron 145 mostly shows up through inconsistent older-market listings.
Sempron 145
2010Why buy it
Trade-offs
- ❌Lower PassMark (544 vs 565).
- ❌4400% higher power demand at 45W vs 1W.
Quick Answers
So, is Athlon II Neo K145 better than Sempron 145?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Athlon II Neo K145 vs Sempron 145 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Athlon II Neo K145
The Athlon II Neo K145 is manufactured by AMD. It was released in 2009-01-01. It is based on the Nile (2010) architecture. It features 1 cores and 1 threads. Max frequency: 1.8 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 1 MB. Memory support: DDR3. Passmark benchmark score: 565 points. Launch price was $149.
Sempron 145
The Sempron 145 is manufactured by AMD. It was released in 1 September 2010 (15 years ago). It is based on the Sargas (2009−2011) architecture. It features 1 cores and 1 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 544 points. Launch price was $95.
Processing Power
Both the Athlon II Neo K145 and Sempron 145 share an identical 1-core/1-thread configuration. Boost clocks reach 1.8 GHz on the Athlon II Neo K145 versus 2.8 GHz on the Sempron 145 — a 43.5% clock advantage for the Sempron 145. The Athlon II Neo K145 uses the Nile (2010) architecture (45 nm), while the Sempron 145 uses Sargas (2009−2011) (45 nm). In PassMark, the Athlon II Neo K145 scores 565 against the Sempron 145's 544 — a 3.8% lead for the Athlon II Neo K145.
| Feature | Athlon II Neo K145 | Sempron 145 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 1.8 GHz | 2.8 GHz+56% |
| Base Clock | — | 2.8 GHz |
| L3 Cache | — | 0 kB |
| L2 Cache | 1 MB | 1 MB (per core) |
| Process | 45 nm | 45 nm |
| Architecture | Nile (2010) | Sargas (2009−2011) |
| PassMark | 565+4% | 544 |
Memory & Platform
The Athlon II Neo K145 uses the S1 socket (PCIe 2.0), while the Sempron 145 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Athlon II Neo K145 | Sempron 145 |
|---|---|---|
| Socket | S1 | AM3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1066 | — |
| Max RAM Capacity | 4 GB | — |
| RAM Channels | 2 | — |
| ECC Support | No | — |
| PCIe Lanes | 0 | — |
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