RTX 3080 vs RTX 3080 Ti: Which Should You Buy?
Head-to-head on performance, VRAM, power and value for 2026.
Quick Summary · TL;DR
On our relative performance index the RTX 3080 Ti leads the RTX 3080 by about 11% — a moderate gap. The RTX 3080 Ti has more VRAM (12GB vs 10GB), which helps at high resolutions and in VRAM-hungry titles.
| RTX 3080 | RTX 3080 Ti | |
|---|---|---|
| Performance index | 56/100 | 62/100 |
| VRAM | 10GB | 12GB |
| Board power (TBP) | 320W | 350W |
| Maker PSU guidance | 750W | 750W |
| Our starting PSU class | 750W | 850W |
| Power connector | 8-pin PCIe | 8-pin PCIe |
| Generation | RTX 30 | RTX 30 |
Relative gaming index — an estimate of typical performance. Real-world gaps vary by game, resolution and settings.
Which should you buy?
Buy the RTX 3080 Ti if you want the higher frame rate and can find it at a fair price. Choose the RTX 3080 if it is clearly cheaper and its 10GB+ of VRAM and features cover your target resolution. Both are from a similar lineage, so price is the main deciding factor.
Power planning: RTX 3080 PSU · RTX 3080 Ti PSU.
RTX 3080 vs RTX 3080 Ti at each resolution
| Resolution | RTX 3080 | RTX 3080 Ti |
|---|---|---|
| 1080p | Excellent | Excellent |
| 1440p | Good (4 short of Great) | Great (14 short of Excellent) |
| 4K | Playable (8 short of Good) | Playable (2 short of Good) |
The 6-point gap (56 vs 62) changes the verdict at 1440p: that is where the RTX 3080 Ti earns its place. At 1080p and 4K both get the same rating, so paying for the faster card buys headroom rather than a different experience there. The RTX 3080 Ti also carries 2GB more memory (12GB vs 10GB).
Power, PSU and efficiency
Reference board power is 320W for the RTX 3080 and 350W for the RTX 3080 Ti, a 30W difference. Per 100W that works out to 17.5 index points for the RTX 3080 and 17.7 for the RTX 3080 Ti, effectively the same efficiency on our index. Both makers list the same 750W supply. Full sizing: RTX 3080 PSU · RTX 3080 Ti PSU.
Ratings use the same index lines as our GPU resolution pages; the index is an editorial tier summary, not a benchmark. PSU figures are the makers’ reference guidance reviewed 12 September 2026.
Sources & verification
Relative indices summarize broad gaming tiers and are not a substitute for game-by-game benchmark averages. Price and driver updates can change the buying recommendation. Last reviewed September 19, 2026.
Frequently asked questions
Is the RTX 3080 better than the RTX 3080 Ti?
On our relative index the RTX 3080 Ti is about 11% ahead of the RTX 3080. The RTX 3080 Ti has more VRAM (12GB vs 10GB), which helps at high resolutions and in VRAM-hungry titles. The smaller the gap, the more other factors like price, VRAM and features should decide it.
Which is better value, the RTX 3080 or the RTX 3080 Ti?
Value depends on the price you can find each at. The slower card is usually the smart buy if it is meaningfully cheaper, unless you need the extra VRAM or features of the faster one.
Do the RTX 3080 and RTX 3080 Ti need different power supplies?
The RTX 3080's maker lists a 750W supply and the RTX 3080 Ti's lists 750W; our starting classes are 750W and 850W. On the makers’ own guidance, a supply that suits one suits the other.
Make sure your CPU can keep up with either card using the Bottleneck Estimator, or compare more cards in the GPU comparison hub.