This is a small quick overview of what the specs in a GPU mean for gaming consumers and things you should look out for when comparing GPUs.

1. The GPU's Engine: Cores and Clock Speeds

Cores: The Workers

GPUs have thousands of cores. More cores usually mean better performance, but how they're designed matters too. Sometimes fewer, smarter cores can beat more basic ones. Different GPU makers (like NVIDIA and AMD) design their cores differently, so comparing core counts across brands isn't always useful.

Clock Speeds: How Fast They Run

Clock speeds show how quickly the GPU works. They're measured in MHz or GHz. Base clock is the normal speed, boost clock is the top speed. Faster isn't always better if it uses too much power or isn't stable. Real-world speeds often vary based on temperature and power limits.

2. Memory: VRAM and How Fast It Works

How Much VRAM You Need

For 1080p gaming, 8GB is common. 4K usually needs 12GB or more. But don't just look at VRAM size - it's not the whole story. VRAM needs depend on the games you play and the mods or texture packs you use.

Memory Speed Matters

How fast the memory works is important too. This depends on the type of memory (like GDDR6) and how it's set up. Fast memory helps the GPU get data quickly. Memory bandwidth, measured in GB/s, tells you how much data the GPU can access per second.

3. Ray Tracing: Making Light Look Real

Ray tracing makes games look more realistic, especially lighting and reflections. But it can slow games down a lot. Not all games support ray tracing, but the list is growing.

RT Cores: Special Ray Tracing Hardware

RT cores are made just for ray tracing. More RT cores usually mean better ray tracing, but it depends on how they're designed. The effectiveness of RT cores can vary greatly between GPU generations.

4. AI in GPUs: Tensor Cores and DLSS

Tensor Cores: The AI Parts

These do AI math. In games, they're mostly used for making images look better. Tensor cores can also help with other tasks like video encoding and 3D rendering.

DLSS: AI-Powered Upscaling

DLSS uses AI to make lower resolution games look like higher resolution. It can make games run faster, especially at high resolutions. DLSS has improved a lot since it was introduced, with newer versions offering better image quality.

5. Power Use and Heat: TDP and Cooling

TDP: How Much Power It Uses

TDP shows how much power the GPU needs and how much heat it makes. New high-end GPUs can use 300W or more. Higher TDP usually means you need a bigger power supply and better cooling in your PC.

Keeping the GPU Cool

Good cooling is important. It helps the GPU run at its best speed and last longer. Most GPUs use fans, but some use water cooling. Better cooling can allow the GPU to maintain higher clock speeds for longer periods.

6. What Really Matters: Performance and Value

Benchmarks: Real-World Testing

Always check how the GPU runs in actual games. Tests made just for GPUs are useful, but real games matter more. Look for benchmarks in games you actually play, at the resolution you use.

Finding the Best Deal

The newest, most expensive GPU isn't always the best choice. Often, mid-range GPUs give you the most for your money, especially if you're not gaming at 4K. Consider how long you plan to keep the GPU - sometimes spending a bit more can mean it lasts longer before needing an upgrade.

Right now, mid-range GPUs are getting a lot better. High-end ones are setting new records, but they use more power and cost more. The GPU market changes quickly, so prices and performance can shift in just a few months. Use PGrid to set price alerts to maximize value.