Razer Blade 18 (2026) with RTX 5090: which AI models can it run?
Estimated from the specifications below. Choose the memory size you have or plan to buy, then read the table for that size.
Specifications
- Brand
- Razer
- Year
- 2026
- Chip
- Intel Core Ultra 9 290HX Plus
- Processor
- Intel Core Ultra 9 290HX Plus (up to 5.5GHz)
- Graphics
- NVIDIA GeForce RTX 5090 Laptop GPU
- Memory type
- DDR5-6400 (2 slots)
- Memory options
- 128 GB (a ceiling: the maker prints only the maximum)
- Graphics memory
- 24 GB
- Memory bandwidth
- 896 GB/s
Sources: https://www.razer.com/gaming-laptops/razer-blade-18, https://www.nvidia.com/en-us/geforce/laptops/50-series/
Razer lists "up to 128GB DDR5 6400MHz (2 slots)" and states 24GB VRAM; smaller memory sizes are not itemised. The 2026 column also lists an RTX 5070 Ti 12GB. GPU bandwidth from NVIDIA's RTX 50 laptop page.
With 128 GB of memory
About 24 GB of it can hold a model.
| Model | Fit | Needs (GB) | Writing speed (tokens per second) | Speed | Quality | Basis |
|---|---|---|---|---|---|---|
| Llama 3.2 3B llama3.2:3b |
Fits | 5 | 157 to 291 | Fast | not measured yet | Estimated |
| Qwen3 4B qwen3:4b · thinks first |
Fits | 6 | 125 to 233 | Fast | not measured yet | Estimated |
| Gemma 3 4B gemma3:4b |
Fits | 6.7 | 95 to 176 | Fast | not measured yet | Estimated |
| Mistral 7B v0.3 mistral:7b |
Fits | 7.8 | 71 to 132 | Fast | not measured yet | Estimated |
| Llama 3.1 8B llama3.1:8b |
Fits | 8.3 | 64 to 119 | Fast | not measured yet | Estimated |
| Qwen3 8B qwen3:8b · thinks first |
Fits | 8.9 | 60 to 112 | Fast | not measured yet | Estimated |
| Gemma 3 12B gemma3:12b |
Fits | 15.9 | 39 to 72 | Fast | not measured yet | Estimated |
| DeepSeek-R1 Distill Qwen 14B deepseek-r1:14b · thinks first |
Fits | 13.7 | 35 to 65 | Fast | not measured yet | Estimated |
| Phi-4 14B phi4:14b |
Fits | 13.9 | 34 to 64 | Fast | not measured yet | Estimated |
| Qwen3 14B qwen3:14b · thinks first |
Fits | 13.4 | 34 to 63 | Fast | not measured yet | Estimated |
| gpt-oss 20B gpt-oss:20b · thinks first |
Fits | 16.5 | 78 to 145 | Fast | not measured yet | Estimated |
| Gemma 3 27B gemma3:27b Part of the model runs from system memory, which is much slower. |
Partial offload (slow) | 27.2 | 2.8 to 5.1 | Unclear could be Slow or Moderate | not measured yet | Estimated |
| Qwen3 30B (A3B) qwen3:30b · thinks first |
Tight | 22.6 | 92 to 170 | Fast | 9.3/10 | Estimated |
| Qwen3 32B qwen3:32b · thinks first Part of the model runs from system memory, which is much slower. |
Partial offload (slow) | 26.3 | 2.4 to 4.4 | Slow | not measured yet | Estimated |
| Llama 3.1 70B llama3.1:70b Part of the model runs from system memory, which is much slower. |
Partial offload (slow) | 51.5 | 1.1 to 2 | Slow | not measured yet | Estimated |
| gpt-oss 120B gpt-oss:120b · thinks first Part of the model runs from system memory, which is much slower. |
Partial offload (slow) | 70.5 | 10 to 18 | Unclear could be Moderate or Fast | not measured yet | Estimated |
Models marked "thinks first" can write out their reasoning before they answer, so a job takes longer than the speed alone suggests.
Reported by others
Other people ran the standard llama-bench test on this chip and published the results. They are not Hardwarerig scores. The test uses a small 7-billion-parameter model, so larger models will be slower than these figures. All published benchmarks.
| Setup | Model and size | Writing speed (tokens per second) | Reading speed (tokens per second) | Source |
|---|---|---|---|---|
| CUDA | Llama 2 7B, Q4_0 | 156.5 | 6667 | llama.cpp discussion 15013 read 2026-10-10 |
| CUDA | Llama 2 7B, Q4_0 | 158.1 | 7642 | llama.cpp discussion 15013 read 2026-10-10 |
Reported by others, not tested by us. Results come from a public community thread; builds and settings differ between submitters.
Published chip scores
Blender Open Data publishes the median render score of its Cycles test for each chip, and PassMark publishes average CPU and 3D scores, both from results people submitted. Higher is faster. These are not Hardwarerig scores. Scores from different tests, and from different Blender versions, are not comparable with each other.
| Chip | Test | Score | Source |
|---|---|---|---|
| NVIDIA GeForce RTX 5090 Laptop GPU | Blender render, NVIDIA OptiX, Blender 5.2.0 | 8074 | Blender Open Data read 2026-10-22 |
| NVIDIA GeForce RTX 5090 Laptop GPU | PassMark G3D Mark (3D and gaming) | 28423 | PassMark read 2026-10-22 |
Editing, gaming, CAD and other work
Each app below publishes a minimum and a recommended system requirement. We compare them with this laptop's memory and graphics memory. We do not judge the graphics chip's class, the processor generation or the operating system, because the makers describe those in words: check the source link for the exact card, processor and system they name. Many apps and games run only on Windows or only on macOS. Integrated graphics count as below any requirement for a dedicated card. Not known means the maker does not state this laptop's graphics memory.
Labels follow the makers' published lists. All use cases.
Speed is the speed of writing an answer, shown as a range. Reading speed is not estimated. How the estimates work · How close they are · Back to the finder