GeForce RTX 2080 Ti vs GeForce RTX 3090
The GeForce RTX 3090 pulls ahead here — in a different league, about 56% ahead of the GeForce RTX 2080 Ti. But the GeForce RTX 2080 Ti is the better value, undercutting it by $1,111 GBP for the performance you get.
Maximum Capacity Reached. Remove a model to add another. (2/2)
GeForce RTX 3090 vs GeForce RTX 2080 Ti: In-Depth Breakdown
Performance: GeForce RTX 3090 vs GeForce RTX 2080 Ti
The GeForce RTX 3090 is dramatically faster, around 56% ahead of the GeForce RTX 2080 Ti. That gap is enough to move it up a tier: the GeForce RTX 3090 is comfortable at 1440p, while the GeForce RTX 2080 Ti is better matched to 1080p. The GeForce RTX 3090 packs 10,496 CUDA cores versus 4,352 on the GeForce RTX 2080 Ti.
Price & Value
Pricing has the GeForce RTX 2080 Ti at $334 GBP, $1,111 GBP under the GeForce RTX 3090's $1,445 GBP. Despite being slower, the GeForce RTX 2080 Ti offers the better performance-per-dollar (~177% better value), so budget-focused buyers should weigh it carefully. The GeForce RTX 2080 Ti is trading below its $999 GBP MSRP — a genuine deal. The GeForce RTX 3090 is trading below its $1,499 GBP MSRP — a genuine deal.
Power & Efficiency
At 250W vs 350W, the GeForce RTX 2080 Ti is the gentler load on your system. The GeForce RTX 3090's extra power draw buys more performance per watt, not just more heat — worth it if your PSU has the headroom. 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 11GB on the GeForce RTX 2080 Ti. The extra 13GB 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 616 GB/s (384-bit vs 352-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The GeForce RTX 3090 is roughly 2 years newer than the GeForce RTX 2080 Ti (Ampere vs Turing), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 2080 Ti or GeForce RTX 3090?
Choose the GeForce RTX 3090 if you want the most performance and can absorb the higher price. If you're optimizing for value, the GeForce RTX 2080 Ti stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the GeForce RTX 3090 better than the GeForce RTX 2080 Ti?
Which is better for 4K gaming, the GeForce RTX 2080 Ti or the GeForce RTX 3090?
Is the GeForce RTX 3090 worth the extra $1,111 GBP over the GeForce RTX 2080 Ti?
Does the GeForce RTX 3090 have enough VRAM advantage to matter?
Which should you buy: GeForce RTX 2080 Ti or GeForce RTX 3090?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 2080 Ti | GeForce RTX 3090 |
|---|---|---|
| Architecture | Turing | Ampere |
| Process Node | TSMC 12nm | Samsung 8nm |
| CUDA Cores (CUDA Cores / CUDA Cores) | 4,352 | 10,496✓ |
| Ray Tracing Cores | 68 | 82✓ |
| Tensor / AI Cores | 544✓ | 328 |
Clock Speeds
| Specification | GeForce RTX 2080 Ti | GeForce RTX 3090 |
|---|---|---|
| Base Clock | 1,350 MHz | 1,395 MHz✓ |
| Boost Clock | 1,545 MHz | 1,695 MHz✓ |
Memory
| Specification | GeForce RTX 2080 Ti | GeForce RTX 3090 |
|---|---|---|
| VRAM Capacity | 11 GB | 24 GB✓ |
| Memory Type | GDDR6 | GDDR6X |
| Memory Bus | 352-bit | 384-bit✓ |
| Memory Speed | 14 Gbps | 19.5 Gbps✓ |
| Bandwidth | 616 GB/s | 936 GB/s✓ |
Connectivity & Power
| Specification | GeForce RTX 2080 Ti | GeForce RTX 3090 |
|---|---|---|
| Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| TDP | 250 W✓ | 350 W |
| Power Connectors | 2x 8-pin | 1x 12-pin |
| Released | Sep 2018 | Sep 2020 |
Related Reading
GDDR5 vs GDDR6 vs GDDR6X vs GDDR7: Which VRAM Generation Actually Matters for Your GPU?
Not all VRAM is created equal. GDDR5, GDDR6, GDDR6X, GDDR7 — we break down what each generation actually delivers in bandwidth, power, and real-world impact so you can stop guessing and start buying smarter.
How to Run Powerful Local LLMs on a Budget GPU in 2026
An 8GB GPU can now run near-flagship open models locally. Here's how QAT, MoE, llama.cpp offloading and MTP turn a budget PC into a private AI rig in 2026.