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NVIDIA RTX 4090 48GB - $5,000 (santa clara)
Stevens Creek Blvd near Cabot
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Specifications:
48GB GDDR6X VRAM (2x stock 4090)
Full-power AD102-300/301 core (not the D variant)
~900 GB/s memory bandwidth (same as a stock 4090)
450W TDP with 12VHPWR connector
PCIe 4.0 x16
3x DisplayPort 1.4, 1x HDMI 2.1
Dimensions: 10.5" x 4.5" (standard 2-slot spacing)
Gen 3 PCB (optimized for power and cooling)
Plug-and-play compatibility with standard NVIDIA drivers on Windows and Linux; no special configuration required.
48GB VRAM GPU Comparison
GPU FP32 (TFLOPS) FP16 Tensor (TFLOPS) Bandwidth TDP Used Price
THIS 4090 48GB 82.6 330 ~900 GB/s 450W $5,000 FIRM
RTX A6000 38.7 155 768 GB/s 300W $3,800–$4,500
RTX 6000 Ada 91.1 364 960 GB/s 300W $6,800–$7,000+
NVIDIA L40S 91.6 362 864 GB/s 350W $7,000–$8,000+
NVIDIA A40 37.4 150 696 GB/s 300W $3,500–$4,500
Note: TFLOPS figures are dense (no sparsity inflation), ensuring a consistent measurement across all cards.
Key Notes:
The A6000 and A40 are older Ampere-generation cards offering less than half the compute power of this 4090. Additionally, the A40 features passive cooling and lacks display outputs, making it suitable only for server chassis.
The L40S also lacks display outputs.
While the RTX 6000 Ada and L40S match this card's compute performance, they cost $2,000–$3,000+ more.
Offering 48GB of VRAM and the Ada architecture at a competitive price, this 4090 delivers the best performance per dollar on the market.
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