The RTX 3090 has refused to age out – 24 GB VRAM at a reasonable price kept it relevant for five years. The new RTX 5060 Ti 16GB undercuts it on price but gives up 8 GB of VRAM. On dedicated GPU hosting which is actually the smarter pick? The answer depends on your target model.
Contents
Specs Side by Side
| Spec | 3090 | 5060 Ti 16GB |
|---|---|---|
| Architecture | Ampere (2020) | Blackwell (2025) |
| VRAM | 24 GB GDDR6X | 16 GB GDDR7 |
| Memory bandwidth | ~936 GB/s | ~448 GB/s |
| Memory bus | 384-bit | 128-bit |
| FP8 tensor support | No | Yes, native |
| TDP | 350 W | 180 W |
| PCIe | Gen 4 x16 | Gen 5 x8 |
| Thermal design | Hot, dense | Moderate |
What Fits Where
The VRAM delta decides what you can host:
| Model | 3090 (24GB) | 5060 Ti (16GB) |
|---|---|---|
| Llama 3 8B FP16 | Easy | Tight |
| Qwen 2.5 14B FP8 | Comfortable | Tight |
| Qwen 2.5 32B AWQ | Fits | Does not fit |
| Gemma 2 27B INT4 | Fits | Does not fit |
| Mistral Nemo 128k context | Fits at INT4 | INT4 single-user only |
If your target model is Qwen 2.5 32B or Gemma 27B, the 3090 is the right card – the 5060 Ti simply cannot host them. If your target is Llama 3 8B or Qwen 14B, the 5060 Ti fits comfortably.
Raw Speed
Memory bandwidth favours the 3090: 936 GB/s versus 448 GB/s – roughly 2x. For bandwidth-bound decode, the 3090 runs faster on models both can host. Measured on Mistral 7B INT8:
- 3090: ~105 t/s decode
- 5060 Ti: ~75 t/s decode
The 3090 is ~40% faster on same-model INT8 decode.
FP8 Closes the Gap
The 5060 Ti has FP8 native. The 3090 does not. On FP8 Mistral 7B:
- 3090: converts FP8 to FP16 at load, runs at FP16 speed ~95 t/s
- 5060 Ti: runs native FP8, ~110 t/s
For FP8 workloads the 5060 Ti wins. Over the next 18 months more checkpoints ship in FP8, progressively tilting the balance further.
Power and Thermals
| Dimension | 3090 | 5060 Ti |
|---|---|---|
| TDP | 350 W | 180 W |
| Under AI load | ~320 W | ~160 W |
| Core temp under load | 75-82°C | 65-75°C |
| Tokens per watt (Mistral 7B INT8) | ~0.33 t/s/W | ~0.47 t/s/W |
The 5060 Ti is 40% more efficient per watt. At fixed monthly hosting cost this is invisible to you, but for datacenter density it matters – two 5060 Ti cards in one chassis draw less power than a single 3090.
Verdict
Pick the 3090 when:
- You need models above ~14B parameters
- Bandwidth-bound decode speed matters more than FP8
- 128k context on Mistral Nemo with multi-user concurrency is the goal
- You are running legacy FP16-only workloads
Pick the 5060 Ti 16GB when:
- Target model fits in 16 GB
- Power efficiency matters (180W vs 350W)
- FP8 support is on your roadmap
- Lower monthly cost is a priority
- Newer silicon and drivers are preferred
For 7-14B workloads in 2026, the 5060 Ti is the modern choice. For 20-30B class models that need more VRAM, the 3090 remains the value leader – it’s the only card in this price range with 24 GB.
Modern Mid-Tier Blackwell
Newer silicon, lower power, native FP8. UK dedicated hosting.
Order the RTX 5060 Ti 16GBSee also: 5060 Ti vs 4060 Ti, 3090 vs 4060 Ti value, 5060 Ti or 3090 decision.
