What is a GPU? Graphics Processing Unit Explained
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A GPU (Graphics Processing Unit) is a specialised processor designed to rapidly handle the mathematical calculations needed to render images, video and animations on a display. In simple terms: the GPU is what makes your screen look good and run smoothly.
What does a GPU actually do?
While a CPU (Central Processing Unit) handles general computing tasks sequentially, a GPU is built to process thousands of smaller tasks in parallel. This makes GPUs exceptionally good at rendering graphics — whether that’s displaying a desktop wallpaper, playing a 4K video, running a game at high frame rates, or accelerating AI workloads.
Modern GPUs are used for much more than gaming. In Singapore, professionals use high-end GPUs for video editing, 3D rendering, machine learning and even cryptocurrency mining.
Integrated GPU vs dedicated GPU
Integrated GPU
Built into the CPU chip. Shares system RAM. Good enough for everyday tasks — web browsing, office work, video streaming. Found in most budget laptops and ultrabooks. Examples: Intel Iris Xe, AMD Radeon Graphics.
Best for: everyday users, students, office work
Dedicated GPU
A separate chip with its own dedicated video memory (VRAM). Far more powerful than integrated graphics. Required for gaming, video editing, 3D work and AI tasks. Examples: NVIDIA GeForce RTX 4060, AMD Radeon RX 7600.
Best for: gamers, creators, PC builders
Key GPU specs to know
| Spec | What it means | What to look for |
|---|---|---|
| VRAM | Video memory on the GPU chip | 8GB minimum for gaming in 2026; 12GB+ for 4K or creative work |
| Clock speed | How fast the GPU processes data (MHz/GHz) | Higher is faster, but varies by architecture |
| TDP (Thermal Design Power) | How much power (watts) the GPU uses | Important for PSU sizing in a custom PC build |
| Ray tracing | Realistic lighting simulation in games | NVIDIA RTX series supports hardware ray tracing |
| DLSS / FSR | AI upscaling to boost frame rates | DLSS (NVIDIA) and FSR (AMD) both improve performance without much visual loss |
GPU prices in Singapore (2026)
GPU prices in Singapore vary widely depending on the tier and whether you buy new or second-hand. As a rough guide:
- Budget (under S$300): NVIDIA GTX 1660 Super, AMD RX 6600 — good for 1080p gaming
- Mid-range (S$400–S$700): NVIDIA RTX 4060, AMD RX 7600 — excellent 1080p/1440p performance
- High-end (S$800–S$1,500+): NVIDIA RTX 4070 Ti, AMD RX 7900 XTX — for 4K gaming and professional workloads
For budget builds, buying a second-hand GPU from reputable sources in Singapore can offer excellent value. See our guide: Where to Buy Second Hand Graphics Cards in Singapore.
Do laptops have GPUs?
Yes — all laptops have at least an integrated GPU. Gaming laptops and professional laptops include a dedicated mobile GPU (such as the NVIDIA GeForce RTX 4060 Laptop GPU). Mobile GPUs are less powerful than their desktop equivalents due to thermal and power constraints, but are still capable of running modern games and creative applications at good settings.
If your laptop’s GPU is failing — causing display artifacts, crashes or overheating — a professional repair shop may be able to help. See: Best Laptop Repair Singapore (2026).