RTX 5090 vs RTX 4090

Published differences

RTX 5090 and RTX 4090 compared through published hardware specifications.

RTX 5090 vs RTX 4090 published GPU specifications. Memory: 32 GB GDDR7 vs 24 GB GDDR6X. Boost clocks: 2,410 MHz vs 2,520 MHz. TGP: 575 W vs 450 W.

• RTX 5090 was introduced on 2025-01-30 while RTX 4090 was introduced on 2022-10-12.
• RTX 5090 uses Blackwell architecture while RTX 4090 uses Ada Lovelace architecture.
• RTX 5090 lists 32 GB GDDR7 while RTX 4090 lists 24 GB GDDR6X.
• RTX 5090 lists 1,792 GB/s memory bandwidth while RTX 4090 lists 1,008 GB/s memory bandwidth.
• RTX 5090 lists a 512-bit memory bus while RTX 4090 lists a 384-bit memory bus.
• RTX 5090 lists 575 W TGP while RTX 4090 lists 450 W TGP.
• RTX 5090 lists 21,760 CUDA cores while RTX 4090 lists 16,384 CUDA cores.
• RTX 5090 lists a 2,010 MHz base clock while RTX 4090 lists a 2,230 MHz base clock.
• RTX 5090 lists a 2,410 MHz boost clock while RTX 4090 lists a 2,520 MHz boost clock.
• RTX 5090 lists a 1,000 W recommended PSU while RTX 4090 lists an 850 W recommended PSU.

Measured evidence

Measured rendering context

Historical launch-price evidence and Blender Cycles measurements are shown in their original scope.