NVIDIA
RTX 4070 Laptop 8GB
RTX 40 LaptopLaptopAda LovelaceMOBILECUDA
Operating mode
Choose the operating mode for this hardware
Use this to bias workload recommendations toward responsiveness, background autonomy, lighter serving, or multi-GPU scale-out.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
About this GPU for AI
The RTX 4070 Laptop GPU brings Ada Lovelace efficiency to mobile workstations with 8 GB of GDDR6 and a configurable 35–115W TGP. Compared to the desktop RTX 4070 (12 GB, 200W), the laptop variant runs at roughly 50–60% of desktop TDP with half the VRAM, trading capacity and speed for portability. It is a practical card for running 7B models at FP16 on the go and handles quantized 13B models, though the 8 GB ceiling is a hard constraint for anything larger.
Beyond LLMs
AI Capability Matrix
What AI tasks this GPU can handle — from text generation to image and video creation.
| Capability | Status | Representative Model | Detail |
|---|
| LLM Chat (7B) | Runs natively | Llama 3.1 8B Q4 | — |
| LLM Coding (30B) | Won’t fit | Qwen 3 30B Q4 | — |
| LLM Large (70B) |
portablethermally-limitedlaptopada-lovelace
Specifications
Compute
FP1622 TFLOPS
INT8352 TOPS
ArchitectureAda Lovelace
Memory
VRAM8 GB
Bandwidth256 GB/s
General
FamilyRTX 40 Laptop
SegmentLaptop
InterconnectMOBILE
Compute PlatformCUDA
Key Features
8 GB GDDR6 VRAMAda Lovelace 4th-gen Tensor Cores with FP8 support22 TFLOPS FP16 / 352 INT8 TOPS256 GB/s memory bandwidthConfigurable 35–115W TGP (Max-Q to Max-P)DLSS 3 with Frame Generation
For AI Workloads
Strengths
- Ada Lovelace FP8 Tensor Cores enable efficient quantized inference in a laptop form factor
- Runs 7B models at FP16 and 13B models at Q4 on battery-capable hardware
- Good performance-per-watt for mobile AI workloads relative to previous laptop GPU generations
- Widely available in thin-and-light to performance laptop designs
Considerations
- 8 GB VRAM hard-limits inference to 7B FP16 or 13B Q4 — no headroom for larger models
- TDP varies widely (35–115W) between laptop models — budget/thin laptops may throttle significantly
- Desktop RTX 4070 12GB offers 50% more VRAM and substantially higher sustained throughput
- 256 GB/s bandwidth limits decode speed on 13B Q4 models
Ada Lovelace is NVIDIA's fourth-generation RTX architecture, manufactured on TSMC's custom 4N process. It introduces 4th-generation Tensor Cores with FP8 support, 3rd-generation ray tracing cores, and the Shader Execution Reordering (SER) engine for improved workload scheduling.
AI Relevance
FP8 Tensor Core operations provide a significant uplift for quantized LLM inference compared to Ampere's FP16-only Tensor Cores. DLSS 3 Frame Generation demonstrates the architecture's AI processing capabilities.
Process: TSMC 4NPlatform: CUDATensor Cores: Gen 4Precisions: FP32, FP16, BF16, FP8, INT8, INT4
Recommendations by Workload
Qwen 3.5 4B matches Chat and keeps a practical fit profile. It is a recent-generation family, which helps on current local SOTA workloads. It fits natively with comfortable headroom. Context coverage stays within the requested workload envelope. Known distribution channels: huggingface, ollama, lm-studio.
Decode 56.0 tok/s · 22K ctx · llama.cppEST.
Codestral Mamba 7B is a specialized fit for Coding. It sits in the middle of the current generation mix. It fits natively with comfortable headroom. Context coverage stays within the requested workload envelope. Known distribution channels: huggingface, ollama.
Decode 52.4 tok/s · 67K ctx · llama.cppEST.
Just out of reach
Models you could run with an upgrade
High-quality models that need a bit more memory
30.5BTier 100Needs ~21.0 GB
397BTier 100Needs ~245.3 GB
123BTier 100Needs ~79.4 GB
1000BTier 100Needs ~615.4 GB
1000BTier 100Needs ~615.4 GB
Image & Video Generation
Diffusion Model Compatibility
21 of 52 models can generate images or video on your RTX 4070 Laptop 8GB
Upgrade paths
Upgrade from RTX 4070 Laptop 8GB
See what you unlock with more powerful hardware
Upgrade options
Upgrade options
Frequently Asked Questions
8
GB
RTX 4070 Laptop 8GBCategory AvgRTX 3080 10GB
| Image Gen (SDXL) | Runs with sequential offload | SDXL 1.0 FP16 | ~~39.6s per image |
| Image Gen (Flux) | Won't fit | Flux.1 Dev FP16 | ~~1m 7s per image |
| Image Gen (SD 3.5) | Won't fit | SD 3.5 Large FP16 | ~~1m 22s per image |
| Video Short (25f) | Won't fit | LTX Video 2B | ~~12.9s/frame |
| Video Long (100f) | Won't fit | Wan Video 14B | ~~38.1s/frame |
Gemma 4 E2B is a specialized fit for Agentic Coding. It is a recent-generation family, which helps on current local SOTA workloads. It fits natively with comfortable headroom. Context coverage stays within the requested workload envelope. Known distribution channels: huggingface, ollama, lm-studio.
Decode 51.5 tok/s · 96K ctx · llama.cppEST.
Codestral Mamba 7B is viable for Reasoning, but is not the most specialized choice. It sits in the middle of the current generation mix. It fits natively with comfortable headroom. Context coverage stays within the requested workload envelope. Known distribution channels: huggingface, ollama.
Decode 52.4 tok/s · 67K ctx · llama.cppEST.
Granite 4.1 3B matches RAG and keeps a practical fit profile. It sits in the middle of the current generation mix. It fits natively with comfortable headroom. Context coverage stays within the requested workload envelope. Known distribution channels: huggingface, ollama.
Decode 42.0 tok/s · 59K ctx · llama.cppEST.
Image
Image models estimated at 1024×1024 (28 steps, FP16). Video models estimated at 768×512 (25 frames, 30 steps, FP16). Actual performance varies with runtime and system load.
Buying advice
Should you buy RTX 4070 Laptop 8GB for local AI?
Usable for local AI with limits
Can run 7 of 50 top models, mostly smaller ones. Larger models need heavy quantization or won't fit.
What will limit you first
This setup is broadly balanced for this model.
No major red flags
This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.
Best upgrade itinerary
Unlocks 33 additional models that do not fit on the current setup.
Want more headroom? RTX 3080 10GB (10.0 GB VRAM) is the next step up.
