The hardware overclocking specialists at Teclab had been at it again by modifying GPUs for increased performance and have created a monster. This time around the team from Brazil has taken an AD103 GPU for a GeForce RTX 4090 and mounted it on a custom RTX 3090 Ti PCB and then paired it with overclocked GDDR6X memory for a GeForce RTX 4080 SUPER. Now while this may seem like a bit of a Frankenstein creation, it does allow the AD103 GPU to stretch its legs and significantly outperform the stock version.
The hardware overclocking specialists at Teclab must have a connection with overseas graphics card manufacturer GALAX because they have previously made similar creations using GALAX PCBs. For this project, they have sourced a GALAX RTX 3090 Ti HOF OC Lab Edition which includes 2 x 12HPWR 16-pin connectors and features an impressive 28-phase VRM design. Now while a GeForce RTX 4090 uses 21 Gbps GDDR6X the team has instead opted for the 22.4 Gbps memory found on RTX 4080 SUPER. That memory is rated for 22.4 Gbps and the team used binned 24 Gbps modules and managed to overclock it to 25.8 Gbps. Lastly, a waterblock connected to an LN2 canister, to cool it.
Per WccfTech:
“But things aren’t as simple as they seem, there are other changes required to be made to get everything to work and these include modified strap settings, BIOS, and changing the power supply project from 1.8V to 1.2V (External).”
Testing Results
This “RTX 4090 SUPER” was tested at 8K resolution with the Unienine Superposition benchmark test. The modded card already managed a 13% performance uptick at stock settings. With the GPU overclocked to over 3 GHz and memory running at an effective 25.8 Gbps, the card’s performance greatly increased to 39.9% over the stock RTX 4090. This essentially has the card performing to the rumored generational increases of the GeForce RTX 5090.
RTX 5090 and 4090 Ti/SUPER Rumors
There have been many rumors about the memory specifications for the NVIDIA GeForce RTX 5090. At this point, it is kind of all over the map but one such rumor suggests 512-bit 28 Gbps memory. Meanwhile, rumors about a 4090 Ti, or 4090 SUPER have floated around since before the launch of the RTX 40 series and further substantiated by images of what are believed to have been prototype coolers and other parts. It seems, at this point, NVIDIA has truly abandoned upgrading from the current flagship and is instead placing its focus on the forthcoming Blackwell GPU lineup. Given how close in performance a heavily modified 4090 can get to the rumored specs of the next flagship, this does make sense.