Kepler was among the pioneers in uncovering AMD’s decision to abandon its big Navi4 GPU plans, a move gradually being acknowledged by AMD itself. Currently, there are no indications of larger Navi GPUs poised to supplant RX 7900 models in the foreseeable future. Nonetheless, alterations are anticipated in the mid-range and entry-level sectors with the emergence of Navi 48 and Navi 44 GPUs, built on the RDNA4 architecture.
These GPUs are anticipated to drive cards such as the Radeon RX 8800, 8700, 8600, and 8500 series, varying based on whether it’s the desktop or mobile lineup. AMD hasn’t provided confirmation regarding the arrival timing of these GPUs or the extent of the RDNA4 launch. However, recent insights hint that next-gen GPUs might employ comparatively slower 18 Gbps GDDR6 memory, notwithstanding the projected mass production of faster GDDR7 memory by the end of this year.
The 18 Gbps memory speed is currently utilized by certain desktop GPUs such as the RX 7900 GRE or RX 7700 XT, along with all Navi 33 models. For the mobile form factor, this speed marks the maximum employed by AMD.
In contrast, the upcoming GeForce RTX 50 series is anticipated to launch with 28 Gbps GDDR7 memory by the end of the year. However, this speed falls short of the fastest GDDR7 speeds being discussed by memory companies, which could potentially reach 36-37 Gbps in the future, albeit not for the initial-gen GPUs leveraging this technology.
What’s likely significant is the limited information available regarding the RDNA4 Infinity Cache specifications; according to current data, these GPUs may not necessitate fast memory. Presently, there’s no indication that the RDNA4 series will drive high-end models, and it’s plausible they won’t achieve the same peak speeds as the current high-end models.
Source: Kepler_L2