The memory configurations of the ASRock Radeon RX 9060 XT Challenger OC and the Sapphire Pulse Radeon RX 9060 XT are, once again, a perfect mirror of each other. Both cards carry 16GB of GDDR6 VRAM running at an effective speed of 20000 MHz across a 128-bit bus, yielding a maximum bandwidth of 322.3 GB/s.
The 16GB allocation is a standout figure for this market segment — it comfortably exceeds what most titles demand today and provides meaningful headroom for high-resolution texture packs, 4K asset streaming, and memory-hungry generative AI workloads running locally on the GPU. The 128-bit bus is the one constraint worth contextualizing: while narrower than the 192-bit or 256-bit interfaces found on higher-tier cards, the 20 Gbps GDDR6 speed compensates effectively, pushing bandwidth to a level that is rarely a bottleneck at 1080p or 1440p. Both cards also support ECC memory, a feature more commonly associated with workstation GPUs, which adds a layer of data integrity assurance useful for compute and professional workloads.
As with the performance group, this is an unambiguous tie. Every memory specification — capacity, speed, bus width, bandwidth, and ECC support — is identical across both cards. Neither the ASRock Challenger OC nor the Sapphire Pulse holds any memory-related advantage over the other, and prospective buyers should direct their attention to other differentiating factors such as cooling design, acoustics, or price.