NVIDIA GeForce RTX 4090
4K gaming, 3D rendering, and the consumer card of choice for local LLM experimentation.
$1,599
Estimated price — not live pricing
Specifications
- VRAM
- 24 GB GDDR6X
- Memory Bus
- 384-bit
- Boost Clock
- ~2.52 GHz
- TDP
- 450 W
- Recommended PSU
- 850 W
Memory dedicated to the graphics card. More VRAM helps with high-resolution textures, larger AI models, and GPU-heavy workloads — running out causes stutters or forces lower settings.
A wider bus generally moves more data per cycle — matters most at higher resolutions.
Higher clocks generally mean faster rendering, though architecture matters as much as raw clock speed.
Determines cooling and power supply headroom requirements.
The minimum power supply wattage recommended to run this card reliably alongside the rest of a typical system.
Best uses
Strengths
- 4K/high-refresh gaming headroom
- 24 GB VRAM comfortably runs many 7B-13B local LLMs and large rendering scenes
- Strong ray tracing performance
Limitations
- High power draw and heat output
- Physically large — verify case clearance before buying
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Compatibility
Longer, more powerful GPUs need more internal case clearance. Compact cases often cap supported GPU length well below full-size cards.
The power supply must comfortably exceed the combined draw of the GPU, CPU, and other components — with headroom for boost/transient spikes.
A monitor's resolution and refresh rate are only fully useful if the GPU can render at that resolution and frame rate for your workloads.
Where to buy
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Related GPU options
NVIDIA GeForce RTX 4060
Comfortable 1080p gaming with DLSS 3 frame generation to extend its lifespan.
- VRAM
- 8 GB GDDR6
- Memory Bus
- 128-bit
- Boost Clock
- ~2.46 GHz
NVIDIA GeForce RTX 4070 SUPER
Smooth 1440p gaming and capable video editing / light AI workload performance.
- VRAM
- 12 GB GDDR6X
- Memory Bus
- 192-bit
- Boost Clock
- ~2.48 GHz