A Chinese hardware reviewer identified by the Username “51972” discovered a significant difference from performance entre as GPUs Radeon RX 9070 XT equipped with different GDDR6 memory suppliers.
After testing More than 20 distinct unitsthe expert has found that models with Samsung modules perform lower than those equipped with SK Hynix memory.
The investigation emerged after the Reviewer noticed anomalous behaviors in some units of the 9070 XT RX during its initial tests. To clarify the situation, he published a detailed video on the Bilibili platform explaining the technical causes behind this performance variation.
Samsung GDDR6 records latency 20ns higher than competitor SK Hynix
The results of benchmarks revealed that Samsung memory plates operate with maximum latency between 370-380nswhile those equipped with SK Hynix modules keep lower values, being in the 350-360ns range. This difference of approximately 20 nanoseconds directly impacts the final performance of graphic plates.
During tests at 3dmark Speedway, even Premium editions overclockadas with samsung memory They were overcome by the basic versions equipped with SK Hynix. The percentage difference was established between 1% and 2% in favor of the units with memory of the South Korean manufacturer.
AMD confirms problem related to Samsung memory timings
After the first results, the reviewer contacted the FEELD AMD FAE (Field Application Engineer to validate your findings. The manufacturer has confirmed that the problem is directly related to the GDDR6 modules provided by Samsung.
The problem was confirmed by AMD itself after detailed investigation. Samsung modules have more relaxed timings, resulting in greater memory latency
Technical analysis revealed that Samsung GDDR6 modules operate with “loose” timing settings compared to SK Hynix. This behavior results in greater latency of memory access, negatively impacting the overall performance of the graphic system.
Paradoxically, some tested Samsung units had higher clock speeds and higher energy consumption, but were still behind SK Hynix in terms of actual performance. This demonstrates that gross operating frequency alone does not determine the final performance of graphic memory.
Common phenomenon in the GPUS market goes unnoticed by users
The practice of different memory suppliers for the same GPU model is routine in the industry. Both Samsung and SK Hynix provide GDDR6 solutions to AMD, which distributes these components among different partner graphic plates manufacturers.
Usually, these variations go unnoticed by end users due to differences in cooling solutions, clock speeds and other technical specifications between models from different manufacturers.
The method used by the Chinese reviewer to segregate units by memory supplier was fundamental to identify this specific difference.
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Discovery Impacts Choice of Consumers and Manufacturers
The results of this investigation can influence both consumers and manufacturers when developing and choosing their next graphics boards. For enthusiasts seeking maximum performance in your settingsIdentifying the type of memory used can become a decisive factor.
Personalized card manufacturers can also consider this information by negotiating component supply contracts, prioritizing suppliers that offer better cost and performance for their end products.
Fonte: Uniko’s hardware
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Source: https://www.adrenaline.com.br/amd/gpu-radeon-rx-9070-xt-modulos-gddr6-samsung/
