Nvidia's 84 GB memory card

The RTX Pro 5500 is a new professional graphics card built on Blackwell architecture with 84 GB of GDDR7 memory, the same GPU core count as the consumer RTX 5090.

“Nvidia has rolled out a new professional graphics card that carries an unusually generous pool of onboard memory for its class.”

Memory sandwich technique

Nvidia mounted 14 memory chips on the front of the card and 14 on the back, creating a double-sided sandwich configuration to fit 28 chips onto one compact card.

“Nvidia mounted 14 GDDR7 modules on the front of the board next to the processor and another 14 modules on the rear.”

Unusual 416-bit memory bus

The card uses a 416-bit memory interface, an oddly narrow width that implies 13 separate 32-bit channels, rarely seen in current GPU designs.

“A 416-bit path implies 13 separate 32-bit memory channels, an oddly uneven number rarely seen in current graphics processor designs.”

Bandwidth over efficiency trade-off

Each memory chip runs at 27 Gbps, delivering about 1,398 GB/s of bandwidth. Nvidia prioritized memory volume for large datasets over the bandwidth efficiency typical in rendering workloads.

Positioned between Pro models

The RTX Pro 5500 sits between the RTX Pro 5000 (72 GB, 14,080 cores) and the flagship RTX Pro 6000 (96 GB, 24,064 cores), closer in specs to the top-tier card.

Enterprise-only deployment

The card draws 600 watts and is built for rack-mounted workstations, not desktop towers. It ships in air-cooled and liquid-cooled variants for enterprise buyers.

Multi-instance partitioning option

Buyers can split the card into either one 84 GB block or two separate 42 GB segments using multi-instance partitioning, offering flexibility for different workloads.

“Buyers can also split the card through multi-instance partitioning, choosing either one full 84 GB block or two separate 42 GB segments instead.”