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NVIDIA GeForce RTX 3090 vs NVIDIA GeForce RTX 4090

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Key differences

  • NVIDIA GeForce RTX 4090 has higher Base clock (2235 MHz vs 1395 MHz)
  • NVIDIA GeForce RTX 4090 has higher Shading cores (16,384 vs 10,496)
  • NVIDIA GeForce RTX 4090 has higher RT cores (128 vs 82)
  • NVIDIA GeForce RTX 4090 has higher Tensor / AI cores (512 vs 328)
  • NVIDIA GeForce RTX 4090 has higher Boost clock (2520 MHz vs 1695 MHz)

Full spec comparison

Spec
NVIDIA GeForce RTX 3090
NVIDIA GeForce RTX 4090
Performance
VRAM24 GB24 GB
Memory typeGDDR6XGDDR6X
Memory bus width384 bit384 bit
Memory bandwidth936 GB/s1008 GB/s
Shading cores10,49616,384
RT cores82128
Tensor / AI cores328512
Base clock1395 MHz2235 MHz
Boost clock1695 MHz2520 MHz
Ray tracingYesYes
Upscaling techDLSS 2DLSS 3 (Frame Generation)
Power & Size
TDP350 W450 W
Recommended PSU750 W850 W
Power connector2× 8-pin1× 16-pin (12VHPWR)
Bus interfacePCIe 4.0 x16PCIe 4.0 x16
Card length313 mm304 mm
Slot width3 slots3.5 slots
Display outputs3× DisplayPort 1.4a, 1× HDMI 2.13× DisplayPort 1.4a, 1× HDMI 2.1

Ready to buy?

NVIDIA GeForce RTX 3090

NVIDIA GeForce RTX 4090

Affiliate disclosure: As an Amazon Associate, PCTalkTalk Compare earns from qualifying purchases. We may also earn a commission from Newegg and B&H Photo Video links, at no extra cost to you.