The Radeon RX 7900 GRE is a high-end entry-level graphics card that, as we told you in our analysis, makes itself an interesting option if we find it at a price of 619.90 euros, thanks to its good performance in rasterization. At the time of writing, the Sapphire Pulse model was available on sale for €589.95 and for that money It’s a good buy.

Being a high-end graphics card, the Radeon RX 7900 GRE has a significant power consumption and therefore requires quite a powerful resource work without problems. However, those who read us daily already know that it will also depend on the rest of the equipment, i.e. the consumption added by the processor and the rest of the PC parts.

The Radeon RX 7900 GRE review was a big success, and that means many of you are extremely interested in this graphics card. That’s why I decided to share with you a new special article in which I will tell you about it what power supply do we needat least to get this graphics card moving and I will also tell you which processor is the best choice to get the best performance.

You need a 600 watt power supply to power the Radeon RX 7900 GRE

Those 600 watts would be the minimum level for a computer configured with a processor that does not have too much power consumption, because otherwise we would need a more powerful power supply. In my analysis, the Radeon RX 7900 had GRE peak consumption of 263 watts and recorded average consumption of 257 wattswhich means it has higher consumption than the GeForce RTX 4070 SUPER, so I recommend a slightly more powerful source.

To better understand this recommendation, I will give you a concrete example. A computer configured with an AMD Ryzen 5 7600 processor, 32GB DDR5 RAM configured in dual channels, a PCIe Gen4 x4 SSD, six 120mm fans, and a three-fan liquid cooling kit should Approximate consumption 485 watts.

A 550 watt power supply could also work if it meets the minimum current values, but we’d be very tight, so it’s better to go with a 600 watt power supply. We will have too more room to maneuver for future expansion, and finally the difference in terms of economic investment between a 550W and a 600W source It is minimal.

However, if we choose a processor with higher consumption, such as the Intel Core i9-13900K, instead of the Ryzen 5 7600, we would need a more powerful resource. In this case, a computer with the same configuration as before, but with an Intel processor, would have a approximate consumption of 678 watts at full load, which means that in this case we would need a source of at least 750 watts.

It is also important to be clear that the Radeon RX 7900 needs GRE two 8-pin auxiliary power connectors. Most 600 watt power supplies already come with two 8-pin PCIe power connectors, so you shouldn’t have a problem, but you need to keep this in mind just in case. The NOX HUMMER X600W with 80 Plus Bronze certification would be enough to move the configuration with Ryzen 5 7600 or equivalent and costs only 63.92 euros.

Chassis space, recommended processor and other things you should know

The space we will need in the chassis will depend on the specific model we choose, but in general Radeon RX 7900 GRE it’s a big graphics card which do not fit into small chassis. As a reference, I leave you with the data of the Sapphire Pulse model we analyzed, as it will serve as a general guide. It occupies 2.5 expansion slots and has the dimensions 280 x 128.75 x 52.57 mm.

It is not a graphics card that reaches very high temperatures, so its impact on the inside of our PC It won’t matter if the airflow is fine. In this sense, the quality of the cooling system of the model we choose can also affect it, but even with the cheapest ones we will not have high temperatures, so you have nothing to worry about.

As for the processor to accompany it from Ryzen 5 5600 or Intel Core i5-12400F We could already make optimal use of it, it would not be necessary to mount a more powerful CPU to develop its full potential, although of course the Ryzen 5 7600 or Intel Core i5-12600K will improve its performance a bit in resolutions. which are more CPU dependent. Note that although the Radeon RX 7900 GRE is a graphics card that does its best at 1440p, it holds up very well at 4K.