I'm new to building PCs and want to upgrade without accidentally buying a graphics card that performs worse than what I already have. My system currently shows two graphics devices: an AMD Radeon RX 6400 with 4 GB of VRAM and AMD Radeon(TM) Graphics with 496 MB. I'm not sure why both appear or which one my computer actually uses. I was also considering replacing my two 8 GB RAM sticks with one 16 GB stick to leave room for future upgrades. My budget is around $160–$300, and I'm open to either new or used parts as long as they work reliably. What should I check when comparing GPUs, and are there compatibility concerns I should know about?
3 Answers
Keep the two 8 GB RAM sticks for now. Two matching sticks usually run in dual-channel mode, which performs better than a single 16 GB stick. You can always replace them with a 2×16 GB kit later if you need more memory. The RX 6400 is your dedicated graphics card. The other Radeon entry is integrated graphics built into the processor, and it usually isn’t being used while the monitor is connected to the RX 6400.
When comparing graphics cards, look for reviews and benchmark results for the games or resolution you care about rather than judging by the amount of VRAM alone. The RX 6400 is an entry-level card, so a well-reviewed upgrade in the $160–$300 range should be noticeably faster, including many suitable used cards. Before buying, check your power supply’s wattage and connectors, the card’s physical length, and whether your case has enough airflow. Also make sure the card works with your motherboard and monitor.
Your budget is enough to look for a meaningful upgrade, especially on the used market. Compare the exact model against the RX 6400 using independent gaming benchmarks, and avoid assuming that a newer name automatically means better performance. Ask for proof that a used card works, inspect it for damage, and confirm the seller’s return policy when possible. The integrated Radeon graphics can be ignored unless you intentionally connect your display to the motherboard or remove the dedicated card.
I’ll check benchmarks and my power supply before choosing anything. I mainly want a reliable improvement instead of buying based on the name alone.
That saves me some money for the GPU, thanks! I didn’t realize two smaller sticks could perform better.