My RTX 3090 has become surprisingly valuable, and selling it would let me move to an RTX 5080 for roughly the same money, or to an RTX 5070 Ti while keeping some cash. I originally started looking at another 3090 for local AI experiments, but that was only a curiosity—I mainly care about gaming performance and I'm not particularly interested in frame generation.
My current system has an i7-7700K, 32GB of DDR4, and the best CPU available for my current motherboard. I mostly play at 4K and haven't run into major performance issues yet. I'm also open to replacing the motherboard and CPU while buying a cheaper GPU, but I'd prefer to keep using DDR4 for now rather than move to DDR5. Is the RTX 5080 worth the extra cost, or would a 5070 Ti, RX 9070 XT, or a platform upgrade make more sense?
4 Answers
For gaming, the 5070 Ti feels like an awkward middle ground at its current pricing. I’d compare the RTX 5080 directly with the RX 9070 XT instead. The 5080 should offer stronger overall performance and features, while the 9070 XT can provide excellent raster performance for considerably less money if you don’t care about frame generation or ray tracing. Keeping the difference in cash is probably the better value unless you specifically want the 5080’s extra performance.
I’d upgrade the CPU before replacing the 3090. An i7-7700K is a quad-core chip and can hold back a high-end GPU, especially outside of 4K or in CPU-heavy games. A DDR4-compatible system using something like a 12700K or 14600K with an appropriate motherboard, paired with an RX 9070 XT or RTX 5070 Ti, could give you a more balanced gaming system than simply installing a slightly faster GPU in the current build.
If you want the simplest upgrade and plan to keep the system for several years, sell the 3090 and buy the 5080. It gives you a clear performance increase without rebuilding the rest of the computer, and you can deal with the CPU and DDR5 transition later. Just keep in mind that at 4K the CPU upgrade may not be urgent in every game, while at lower resolutions the 7700K is much more likely to limit the new card.
Don’t choose based on AI memory requirements since gaming is your real priority. The 3090’s 24GB of VRAM is useful for compute, but it doesn’t automatically make it the better gaming card. A 9070 XT is worth considering if it’s substantially cheaper in your market; otherwise, the 5080 is the more straightforward high-end upgrade. I’d skip the 5070 Ti unless its price is much closer to the 9070 XT than the 5080.
That makes sense, especially since a 9070 XT plus a platform upgrade could cost less than moving to a 5080. My only hesitation is that replacing the CPU and motherboard now means I may eventually want to move to DDR5 anyway.