GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the GeForce RTX 3090 comes out dramatically faster — about 242% ahead of the GeForce GTX 1660 SUPER.
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GeForce RTX 3090 vs GeForce GTX 1660 SUPER: In-Depth Breakdown
Performance: GeForce RTX 3090 vs GeForce GTX 1660 SUPER
The GeForce RTX 3090 is dramatically faster, around 242% ahead of the GeForce GTX 1660 SUPER. That gap is enough to move it up a tier: the GeForce RTX 3090 is comfortable at 1440p, while the GeForce GTX 1660 SUPER is better matched to entry-level 1080p. The GeForce RTX 3090 packs 10,496 CUDA cores versus 1,408 on the GeForce GTX 1660 SUPER.
Power & Efficiency
On power, the GeForce GTX 1660 SUPER is the gentler choice at 125W versus 350W. The GeForce RTX 3090 is more efficient per watt because it's faster, but its higher 350W draw means more heat and a bigger PSU. Its more modern Ampere architecture on a Samsung 8nm process is part of why it does more with each watt.
VRAM & Future-Proofing
The GeForce RTX 3090 carries 24GB versus 6GB on the GeForce GTX 1660 SUPER. The extra 18GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers. The GeForce RTX 3090's memory is also faster — 936 GB/s versus 336 GB/s (384-bit vs 192-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: GeForce GTX 1660 SUPER or GeForce RTX 3090?
The GeForce RTX 3090 is the faster card by about 242%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.