New PS5 model is lighter due to smaller, worse heatsink and gets hotter

The new revised models of the PlayStation 5 weigh 300 grams (0.66 pounds) lighter than the original models. The big question was, “How?” With the same specs and external form factor, what has Sony changed or sacrificed to make the new model weigh less. The answer is a smaller heat sink, making the revised console hotter.

This discovery comes from tech YouTuber Austin Evans, who compared a new revised unit of the PS5 Digital Edition from Japan to an original PS5 Digital Edition model. Its thermal tests show that the new, lighter model is a significant 3 to 5°C (or 8 to 9°F) hotter than the heavier, original model.

Breaking down the two systems to compare the insides, Austin discovered the cause of the new revision’s lower weight: a significantly smaller heat sink compared to the original. The difference is apparently visible, with fewer copper and aluminum heat fins in the new heatsink. “Oh my God! I’ve got about half the heatsink!” Austin remarked upon seeing the comparison.

(Left: original PS5 heatsink. Right: new PS5 heatsink)

The internal board weight of the new heatsink revision was 1368 grams (3.0 pounds) and the original weighs 1639 grams (3.6 pounds).

Time will tell how the higher temperatures and poorer cooling will affect the new PS5 models in the long run, as well as any additional NVMe SSDs users install in them, which can get warm and require a heat sink of their own.

Another visible change in the lighter model appears to be a new Wi-Fi receiver component, which has yet to be closely examined or tested.

Austin’s new PS5 Digital Edition also featured a new fan manufactured by Delta Electronics. The new Delta fan has 17 blades, but the original Delta fan has 23 blades. The blades of the new 17-wing Delta fan extend longer in the center than the original 23-blade Delta fan. Since its launch, Sony has already used several fans of the companies Delta, Nidec and NMB for the production of PS5.

The previously known major change with the new lighter revised PS5 models was the screw used to secure the kickstand when the console is oriented vertically. The new screw has a thicker, textured head so it can be turned by hand, rather than a coin or flat head screwdriver.

The new, lighter PS5s are labeled with CFI-11XX model numbers (visible on the box). The original PS5s are covered by the CFI-1XXX model branding. The new models have been sold in Japan and Australia, although we can expect them to appear

Sony recently revealed that the PS5 Standard Edition (aka the disc drive model) will no longer be sold at a loss, meaning it will make a profit on the console. The new, smaller heatsink in the revised PS5 models is likely to be cheaper, allowing Sony to further reduce the cost of PS5s.

You can watch Austin Evans’ full video of his disassembly comparison below.