Samsung's GDDR6 Modules Run 10°C Cooler Than SK Hynix, Claims GPU AIB

XFX has officially published various performance figures claiming that its custom GPUs run better with Samsung GDDR6 memory, rather than SK Hynix modules. Usually, add-in-board (AIB) partners receive the GPU die sold as a kit with memory. However, AMD, NVIDIA, and Intel typically source their memory modules from various partners, including Samsung, SK Hynix, and Micron. GPU AIBs can sometimes prioritize a single memory maker, and this time it looks like Samsung GDDR6 memory modules are turning out ot be a much better design for the XFX GPUs. "In terms of hardware, memory power consumption and heat dissipation also directly impact overall stability. Previously, the XFX 9060 XT used Hynix memory, but this time, the XFX 9060XT V3 has switched to Samsung memory. Not only is the GPU cooler, but its DDR temperature is 10°C lower than the Hynix version" says XFX on BiliBili.

The performance comparisons show that Samsung's GDDR6 memory runs at 77°C, while the SK Hynix modules run at 10°C hotter, 87°C. Switching to Samsung-made modules also brings down the total board consumption to 183 W, down from 207 W with SK Hynix. This is 24 W of heat, which the cooler system picks up, resulting in a lower fan speed. In contrast, the Samsung version spun the fans at 1461 RPM, while the SK Hynix version spun at 1814 RPM. This means that the overall GPU system is being more stable, generally more effective, prevents VRAM downclocks, and has higher stability. Interestingly, the choice of Samsung memory increases the GPU die temperature by 3°C, indicating that the memory controller on the die is likely operating at a higher intensity. While we await more details and independent testing, it is interesting to see just how much a memory vendor choice can impact the overall GPU performance. There is little information on XFX 9060 XT V3 design, but it is already available in China.