Graphics Cards
Upgrade your setup with the latest NVIDIA GeForce RTX 50 Series and AMD Radeon RX 9000 Series graphics cards.
Depending on what you need from your build, these cards generally fall into three tiers:
- Budget: Great for everyday gaming (e.g. RTX 5060).
- Mid-range: A powerful step up for more demanding titles (e.g. RTX 5070, RX 9070).
- Flagship: The ultimate choice for maximum performance (e.g. RTX 5080, RTX 5090).
Not sure which one is right for you? Check out our NVIDIA or AMD buying guides.
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What specifications should you look for in a graphics card?
In order to select the best graphics card for your purposes, there are several things you should look for in the card’s specifications.
We’ve detailed the key specifications you should pay attention to below.
Graphics card memory
- VRAM is one of the most critical specs to get right.
- For a comfortable 1080p experience at high settings, 8GB is the absolute minimum.
- If you're stepping up to 1440p, you'll want 12GB as a practical baseline for modern AAA titles, while 16GB or more is the way to go for 4K.
- You'll see professional workstation cards with much higher capacities, some reaching up to 96GB, but for gaming, 12 to 16GB will cover the vast majority of your needs for this generation and beyond.
- Note - it’s possible to buy graphics cards with as much as 24GB of memory, but as you’d expect, these are the costly top-of-the-range models.
Form factor
- It’s easy to get carried away and select a graphics card based on its sheer graphical processing power, only to find it doesn’t fit in your PC case…
- So, pay attention to form factor!
- Check the length, height and thickness of your chosen graphics card.
- It’s possible to buy slim (also known as half-height), as well as single-slot, dual-slot and triple slot formats, so make sure you know what type you’re getting.
- At present, the top end graphics cards are all quite sizable, due to their fans and heat sinks.
- It is also possible to get newer graphics cards which have a smaller form factor.
Power connectors
- How will your chosen graphics card draw power? And how much power will it draw?
- These are really important questions to answer, as graphics cards tend to be quite power hungry and will typically require more power than the 75W that is generated by the x16 PCIe slot.
- Many graphics cards will need to use additional PCIe power connectors.
- So, you should make sure that your PC’s power supply has the additional connectors that your chosen graphics card requires. If it doesn’t, then you’ll need to upgrade your PSU.
- Note - you will need to check what type of PCIe power connectors that your graphics card comes with. For example, some RTX 50-series graphics cards use the 12V-2x6 power connector. Depending on your power supply, you may require an adaptor, such as an 8-pin to 12V-2x6 adaptor.
Thermal design power (TDP)
- Thermal design power is another power-related consideration. It’s not only a measure of heat dissipation, but provides you with an estimate of how many watts you’ll need to power your graphics card at standard settings.
- Thermal design power can also be helpful in calculating what type of power supply unit you require when you are using a graphics card, especially one which is overclocked.
Ports
- It’s really important to ensure that the graphics card you purchase has the right connectors for your monitor.
- The majority of monitors these days will have a HDMI port, however newer monitors are increasingly coming with DisplayPort ports too.
- You may find that if your monitor is particularly old, you may need to use an adaptor if available, otherwise you would need to upgrade to a new monitor.
Clock speed
- If you’re particularly concerned about frame rates, then you’ll want to check your prospective graphics card’s clock speed.
- Some manufacturers will overclock their graphics cards, which can provide a 3-5% difference in frame rates.
- However, clock speed isn’t the be all and end all of performance considerations. Things like cooling performance, core counts and architecture all also make a difference to the performance of a graphics card.
TFLOPS
- TFLOPS is another common way to gauge graphics card performance.
- It stands for “trillions of floating-point operations per second” and is calculated by multiplying the core count by the clock speed, then doubling that figure.
- Just keep in mind that you shouldn't compare TFLOPS directly across different architectures or generations. Because of improvements in architectural efficiency, a TFLOPS figure on an older card won't deliver the same real-world performance as the same figure on a newer one.