Hydra unlocks VRAM overclocking and 125% power limits for all GeForce RTX 50 Series GPUs

Hydra is a custom GPU overclocking and monitoring tool created by Yuri Bubliy (1usmus), and a notable 2.3B update is expected to drop next week for Early Access subscribers on Patreon. This update is currently making headlines because it's set to introduce advanced VRAM overclocking and power-limit controls for GeForce RTX 50 Series GPUs.

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According to the post, owners of GeForce RTX 50 series graphics cards from any vendor will be able to increase and overclock GDDR7 memory speed up to 36 Gbps. For most cards in the lineup, this would equate to a +3000MHz increase, with the developer noting that it achieved this with a custom solution that's not "a security hack, a VBIOS modification, or some kind of 'magic' driver."

To accompany the announcement, the developer showcases images of their ASUS ROG Astral GeForce RTX 5090 GPU hitting an impressive 2.3 TB/s of memory bandwidth thanks to the new 36 Gbps overclock. They also note that 36 Gbps is an intentional limit "with user safety in mind," meaning that the ceiling could go even higher.

The updated Hydra tool also increases the power limit for GeForce RTX 50 Series GPUs to 125% from the standard 110%. The update also introduces XBAR offset control for extreme overclockers, which tunes a GPU's interconnect to boost performance beyond GPU core frequency and memory overclocking. Naturally, faster memory and more power bring risks to component health, so even with limits in place, 1usmus adds the following disclaimer.

Frequently Asked Questions

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Question #1

Which GeForce RTX 50 Series models did Hydra’s 2.3B update test to reach the 36 Gbps GDDR7 overclock?

The primary article shows the developer testing the 36 Gbps GDDR7 overclock on an ASUS ROG Astral GeForce RTX 5090, which hit about 2.3 TB/s of memory bandwidth. The article does not list any other specific RTX 50 Series models tested for the 36 Gbps overclock.

Answered

Question #2

Will Hydra’s 36 Gbps VRAM overclock apply to cards from all board partners or only reference-design RTX 50 Series GPUs?

The primary article states Hydra will let owners of GeForce RTX 50 Series graphics cards from any vendor overclock GDDR7 memory up to 36 Gbps, so it applies to cards from all board partners rather than only reference-design GPUs. The developer also demonstrates the feature on an ASUS ROG Astral GeForce RTX 5090 as an example.

Answered

Question #3

How does the +3000MHz GDDR7 increase reported in the article translate to effective memory bandwidth on an RTX 5090?

The article says the +3000MHz GDDR7 increase brings memory speed up to 36 Gbps, and the developer’s ASUS ROG Astral GeForce RTX 5090 is shown reaching about 2.3 TB/s of memory bandwidth at that 36 Gbps setting.

Answered

Question #4

What safeguards or intentional limits does Hydra implement to protect users when setting the 36 Gbps VRAM ceiling?

Hydra enforces an intentional 36 Gbps VRAM ceiling that the developer says was set "with user safety in mind," meaning the limit is deliberately capped even though it could go higher. The update also comes with a developer disclaimer warning that overclocking can be dangerous and advising users to understand changes, monitor the graphics card carefully, and never exceed the capabilities of the cooling system, VRM, power delivery, or other components.

Answered

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Any form of overclocking can become dangerous in the hands of an inexperienced user. Excessive voltage, power, or frequency settings may cause instability, overheating, accelerated hardware degradation, or permanent damage. Always understand what you are changing, monitor the graphics card carefully, and never exceed the capabilities of its cooling system, VRM, power delivery, or other components.