24 GB GDDR6X Memory
A 24 GB GDDR6X configuration with a 384-bit memory bus supports the RTX 4090's graphics workload capacity.
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Updated 5 months ago
The official reference design of the RTX 4090 featuring an elegant dual-axial flow-through cooler. Sets the standard for Ada Lovelace 4K capability.

A 24 GB GDDR6X configuration with a 384-bit memory bus supports the RTX 4090's graphics workload capacity.
The GPU features 16,384 NVIDIA CUDA cores, a 2.23 GHz base clock, a boost clock up to 2.52 GHz, and ray-tracing support.
The reference design combines a dual-axial flow-through cooler with HDMI 2.1, DisplayPort 1.4a, and PCIe 4.0 x16 interfaces.
The NVIDIA GeForce RTX 4090 Founders Edition is an Ada Lovelace GPU with 24 GB of GDDR6X memory, a 384-bit memory bus, a dual-axial flow-through cooler, and PCIe 4.0 x16 connectivity.
Delivers extreme 4K gaming performance and is the “tour de force” debut of Ada Lovelace, with PCMag’s main caveat being the card’s sheer excess power and high cost—only buy if you really need this much GPU.
The RTX 4090 is a huge performance leap and is impressive and “fairly priced” relative to what you’re getting at its $1,599-and-up launch price, assuming you can find it near MSRP; Ars also flags that the broader generational impact for lower tiers is less clear.
A ‘beast’ for 4K gaming that marks a new era in frame rates, but with downsides around cost and demanding size/power; The Verge concludes it’s hard to avoid recommending it if you want the best 4K experience.
Highlights major generational gains from the Ada flagship, including large leads in both synthetic and compute benchmarks versus prior RTX 3090 Ti/3090 class hardware, reinforcing that the 4090 FE is effectively unrivaled at high-end 4K performance targets.
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| Attribute | Specification | Notes |
|---|---|---|
| Capacity | 24 GB/W | GB/W |
| Compatibility | PCI Express Gen 4, PCIe x16 | |
| Component Type | GPU | |
| Cooling Design | Dual-axial flow-through cooler | |
| Dimensions | Length: 304 mm, Width: 137 mm, Height: 61 mm | mm |
| Form Factor | 3-slot graphics card (61mm) | |
| Gpu Architecture | Ada Lovelace | |
| Gpu Model | NVIDIA GeForce RTX 4090 | |
| Interface Standard | PCIe 4.0 x16, HDMI 2.1, DisplayPort 1.4a | |
| Manufacturer | NVIDIA | |
| Memory Bus Width | 384 | |
| Pcie Interface | PCIe 4.0 x16 | |
| Performance Spec | 16384 NVIDIA CUDA Cores, Boost clock: 2.52 GHz, Base clock: 2.23 GHz | |
| Power Draw Tgp | 450 | |
| Power Requirements | 450 W | W |
| Ray Tracing Support | Yes | |
| Thermal Design | Maximum GPU temperature: 90 C | |
| Upscaling Technology | -0.00019253723381503488 | |
| Vram Capacity | 24 | |
| Vram Type | GDDR6X | |
| Warranty Period | 12 months | months |

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