News on March 19th: Upgrading the graphics card to a larger memory capacity is no longer a technical challenge. Paulo Gomes’ team found a new method, unlocking the full memory bandwidth of the RX 5600 XT graphics card, additionally upgrading its memory, and even overclocking it.
The RX 5600 XT was released in January 2020, utilizing the first-generation RNDA architecture, with a Navi 10 XLE GPU core, 2304 stream processors, and equipped with 192-bit bandwidth, 6GB GDDR6 memory.
It’s worth mentioning that its superior model, the RX 5700 XT, has a full 256-bit bandwidth and 8GB capacity, while the workstation-grade Radeon Pro 5700 XT has 16GB.
Paulo Gomes used a Sapphire RX 5600 XT and, by adding hexadecimal input instructions to the video memory BIOS, unlocked the blocked 64-bit bandwidth and tried different memory capacities of 6GB, 8GB, 12GB, and 16GB, respectively testing with Unigine SuperPosition 1080p Extreme.
First, doubling the capacity to 12GB without changing the bandwidth did not alter the performance, but overclocking could yield a 14% improvement.
Second, unlocking the bandwidth and increasing the memory to 8GB resulted in an 11% performance boost.
Third, unlocking the bandwidth and increasing the memory to 16GB also resulted in an 11% performance increase, and deep overclocking led to a 29% improvement, almost catching up with the RX 6600 XT.
Clearly, for an older card like the RX 5600 XT, simply increasing the memory capacity is not beneficial, but unlocking the bandwidth is indeed useful, and the most effective method is actually overclocking.
The next step might be to unlock the RX 7700 XT?
Last but not least, you must be very concerned about how much performance increase the Radeon RX 5600 XT can get after such a magic modification?
The actual situation is as follows: after upgrading the bit width to 256bit, the performance can be increased by 11%, and after upgrading the video memory to 16GB, the performance is not significantly increased. After proper overclocking and full optimization, the final 29% increase in overall performance is close to that of the Radeon RX 6600 XT, so this kind of modification is by no means fancy or useful.
However, for the majority of ordinary users, leaving aside the technical difficulties, just from the cost point of view, this magic is not desirable, because there is basically no cost-effective, it would be better to get a higher performance graphics card, this magic program is only suitable for a small number of geeky players.
Supplementary note: upgrading and expanding the graphics card memory, not directly replace the memory can be, this is only the overall idea and the main steps, there are actually many other necessary auxiliary work, white users please do not try.
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