Galax RTX 4090 Is the First GPU With an HDMI Retimer For Long Distance Connections

GeForce RTX 4090 20th Anniversary Edition
GeForce RTX 4090 20th Anniversary Edition (Image credit: Galax)

The GeForce RTX 4090 is already one of the best graphics cards, but Galax has made the Ada Lovelace flagship even better by adding an HDMI retimer chip to ensure clean signals over long HDMI connections.

This year marks the 20th anniversary of the Galax brand, so what better way to commemorate the feat than to release limited edition products? That's how the Galax GeForce RTX 4090 20th Anniversary Edition came into existence. 

The GeForce RTX 4090 20th Anniversary Edition is the first graphics card to feature an HDMI retimer. These small integrated circuits (ICs) enhance HDMI signal transmission over long distances. HDMI retimers are typically found in consoles, such as the PlayStation 5 and Xbox Series X or Series X because there are higher chances of console gamers connecting their consoles to the TV over great distances than PC gamers, who typically have the case on top of or beneath the desk.

Galax has implemented the Parade PS8419, a 12 Gbps HDMI 2.1 retimer, IC into the GeForce RTX 4090 20th Anniversary Edition. The PS8419 removes the jitter and timing skew in the data and clock channels, so users receive an HDMI output with very little jitter presence. Therefore, you can connect your gaming PC to your TV in the next room with a HDMI cable. Logically, the PS8419 is only responsible for maintaining a stable signal on the graphics card's HDMI 2.1 port. The other three DisplayPort 1.4a outputs do not benefit from the PS8419's functions.

Outside the GeForce RTX 4090 Founders Edition, the GeForce RTX 4090 20th Anniversary Edition is the only custom GeForce RTX 4090 that utilizes a similar top-down cooling solution. Two cooling fans push air downwards from one side of the graphics card while another does the same job on the opposite side.

Aesthetically, you can't ask anything more from the GeForce RTX 4090 20th Anniversary Edition. Coming in with a quad-slot cooler, the GeForce RTX 4090 20th Anniversary Edition is a pretty thick graphics card that's 60mm thick and up to 344mm long. A detachable acrylic board is located at the front, but Galax didn't specify whether users can make their own and slap it on the graphics card.

The graphics card possesses an impressive VRAM with a 24+4 power stage design, sufficient for serious overclocking. By default, the GeForce RTX 4090 20th Anniversary Edition features a 2,595 MHz boost clock, but you can push it a lot higher, assuming you get a good sample. Like other custom GeForce RTX 4090 graphics cards, GeForce RTX 4090 20th Anniversary Edition relies on the 16-pin (12VHPWR) power connector, a nuisance to Nvidia's flagship. The company has followed a similar trend of hiding the 16-pin power connector behind the backplate.

The GeForce RTX 4090 20th Anniversary Edition is a limited edition SKU that's unlikely to venture outside of the Chinese market. As a result, Galax might only be doing a limited production run, so we don't expect many units to be available. As for pricing, the GeForce RTX 4090 20th Anniversary Edition probably commands a hefty premium, being a collector's item.

Zhiye Liu
RAM Reviewer and News Editor

Zhiye Liu is a Freelance News Writer at Tom’s Hardware US. Although he loves everything that’s hardware, he has a soft spot for CPUs, GPUs, and RAM.

  • gg83
    Thats the most beautiful gpu I have ever seen.
    Reply
  • HaninTH
    In a "global market", all of these products SHOULD BE available to anyone in the world! Too bad that market is not designed to promote anything but profit.
    Reply
  • evdjj3j
    I use a 30' HDMI cable with both my 2070 and 4070ti.
    Reply
  • PEnns
    Hmmm, sounds very plausible. After all, he lists his 2 PhDs on his profile!

    Maybe us peasants with double MAs should also do that, and throw in the AAs as well!
    Reply
  • TJ Hooker
    Admin said:
    Galax has implemented the Parade PS8419, a 12 Gbps HDMI 2.1 retimer
    That's only 1/4 the bit rate of HDMI v2.1, and less than the bit rate of of v2.0 (18 Gbps). At those data rates, is there even any benefit from retimers?

    Also, in general, does it even make sense to have a retimer right next to the source? Shouldn't the signal be pretty pristine and non-degraded at that point?
    Reply
  • bit_user
    evdjj3j said:
    I use a 30' HDMI cable with both my 2070 and 4070ti.
    At what resolution & framerate?
    Reply
  • evdjj3j
    bit_user said:
    At what resolution & framerate?
    4k60
    Reply
  • bit_user
    evdjj3j said:
    4k60
    Wow! Can you say anything about the cable you used?

    According to this, there are some HDMI cables capable of 18 Gbps up to 50 feet, by way of a built-in boost/EQ chip:
    https://www.bluejeanscable.com/store/hdmi-cables/hdmi-cable.htm
    BTW, I recommend that seller. They're no-nonsense cable geeks. I've bought several cables from them, including even a custom-made job.

    Also, the wikipedia page on HDMI has a convenient table for relating resolution + refresh rate to data rate:
    https://en.wikipedia.org/wiki/HDMI#Refresh_frequency_limits_for_common_resolutions
    According to that, you can do 4k @ 8bpp at up to 74 Hz at 18 Gbps signalling rate.
    Reply
  • evdjj3j
    bit_user said:
    Wow! Can you say anything about the cable you used?

    According to this, there are some HDMI cables capable of 18 Gbps up to 50 feet, by way of a built-in boost/EQ chip:
    https://www.bluejeanscable.com/store/hdmi-cables/hdmi-cable.htm
    BTW, I recommend that seller. They're no-nonsense cable geeks. I've bought several cables from them, including even a custom-made job.

    Also, the wikipedia page on HDMI has a convenient table for relating resolution + refresh rate to data rate:
    https://en.wikipedia.org/wiki/HDMI#Refresh_frequency_limits_for_common_resolutions
    According to that, you can do 4k @ 8bpp at up to 74 Hz at 18 Gbps signalling rate.
    I think I ordered it from Monoprice.
    Reply
  • TJ Hooker
    Heck, I have a 50 foot Amazon Basics 18 Gbps HDMI cable that cost like $50. Admittedly I usually only run at 1080p/60 to my TV, but it seems to work fine at 4k/60 too.
    Reply