When it comes to memory, these two cards are carbon copies of each other. Both carry 16GB of GDDR7 VRAM running at an effective 28000 MHz across a 128-bit bus, delivering a maximum bandwidth of 448 GB/s. GDDR7 is the key generational leap here — compared to the GDDR6X found on previous-generation mid-range cards, it achieves significantly higher data rates per pin, which is precisely how a 128-bit bus can still push 448 GB/s of throughput. That bandwidth figure keeps texture streaming, frame buffer access, and shader data movement from becoming a bottleneck in demanding titles.
The 16GB VRAM capacity is also worth contextualizing. At this tier, 16GB is a generous allocation — enough to handle high-resolution texture packs, DLSS frame generation buffers, and emerging memory-hungry workloads without running into capacity walls that can cause stuttering or quality downgrades. ECC memory support is present on both, which is largely a professional/compute-facing feature rather than a gaming differentiator, but it does add flexibility if either card is used for light creative or ML workloads.
This group is a complete tie. Every single memory specification — capacity, speed, bandwidth, bus width, and memory type — is identical across the Asus Prime and the Zotac Gaming Twin Edge OC. Neither card holds any advantage here, and memory performance will be indistinguishable between the two in any real-world scenario.