CPU
GPU
A4 Micro-6400T
Celeron G550T
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 A4 Micro-6400T is positioned at rank 843 and the Celeron G550T is on rank 673, so the Celeron G550T offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar A4 Micro-6400T
Performance Per Dollar Celeron G550T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | A4 Micro-6400T | Celeron G550T |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($5) |
| Longevity | 🛑 Legacy (Mullins (2014) / 28 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | A4 Micro-6400T | Celeron G550T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($5) |
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 A4 Micro-6400T and Celeron G550T
A4 Micro-6400T
The A4 Micro-6400T is manufactured by AMD. It was released in 29 April 2014 (11 years ago). It is based on the Mullins (2014) architecture. It features 4 cores and 4 threads. Base frequency is 1 GHz, with boost up to 1.6 GHz. L2 cache: 2048 kB. Built on 28 nm process technology. Socket: FT3. Thermal design power (TDP): 5 Watt. Memory support: DDR3-1333. Passmark benchmark score: 1,082 points. Launch price was $69.
Celeron G550T
The Celeron G550T is manufactured by Intel. It was released in 2007-01-01. It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 2 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,074 points. Launch price was $69.
Processing Power
The A4 Micro-6400T packs 4 cores / 4 threads, while the Celeron G550T offers 2 cores / 2 threads — the A4 Micro-6400T has 2 more cores. Boost clocks reach 1.6 GHz on the A4 Micro-6400T versus 2.2 GHz on the Celeron G550T — a 31.6% clock advantage for the Celeron G550T (base: 1 GHz vs 2.2 GHz). The A4 Micro-6400T uses the Mullins (2014) architecture (28 nm), while the Celeron G550T uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the A4 Micro-6400T scores 1,082 against the Celeron G550T's 1,074 — a 0.7% lead for the A4 Micro-6400T. Geekbench 6 single-core — the metric most relevant to gaming — records 180 vs 366, a 68.1% lead for the Celeron G550T that directly translates to higher frame rates.
| Feature | A4 Micro-6400T | Celeron G550T |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 1.6 GHz | 2.2 GHz+38% |
| Base Clock | 1 GHz | 2.2 GHz+120% |
| L3 Cache | — | 2 MB (total) |
| L2 Cache | 2048 kB+700% | 256 kB (per core) |
| Process | 28 nm-13% | 32 nm |
| Architecture | Mullins (2014) | Sandy Bridge (2011−2013) |
| PassMark | 1,082 | 1,074 |
| Geekbench 6 Single | 180 | 366+103% |
| Geekbench 6 Multi | — | 656 |
Memory & Platform
The A4 Micro-6400T uses the FT3 socket (PCIe 3.0), while the Celeron G550T uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3L-1333 memory speed. The Celeron G550T supports up to 32 GB of RAM compared to 8 GB — 120% more capacity for professional workloads. Memory channels: 1 (A4 Micro-6400T) vs 2 (Celeron G550T). PCIe lanes: 8 (A4 Micro-6400T) vs 16 (Celeron G550T) — the Celeron G550T offers 8 more lanes for additional GPUs or NVMe drives.
| Feature | A4 Micro-6400T | Celeron G550T |
|---|---|---|
| Socket | FT3 | LGA1155 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR3L-1333 | DDR3-1066 |
| Max RAM Capacity | 8 GB | 32 GB+300% |
| RAM Channels | 1 | 2+100% |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 8 | 16+100% |
Advanced Features
Neither processor supports overclocking. Virtualization support: AMD-V (A4 Micro-6400T) vs VT-x (Celeron G550T). Both include integrated graphics — Radeon R3 (A4 Micro-6400T) and HD Graphics (Sandy Bridge) (Celeron G550T) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: A4 Micro-6400T targets Tablet, Celeron G550T targets Budget. Direct competitor: A4 Micro-6400T rivals Atom Z3770; Celeron G550T rivals Pentium G630T.
| Feature | A4 Micro-6400T | Celeron G550T |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Radeon R3 | HD Graphics (Sandy Bridge) |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | AMD-V | VT-x |
| Target Use | Tablet | Budget |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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