Home / Tech News / Featured Tech News / Acer’s Liquid Cooled RTX 4090 – Tested!

Acer’s Liquid Cooled RTX 4090 – Tested!

Update 15 December 2023: Since publishing this article, it has come to our attention that the Predator Orion X prebuilt system, from which we took this RTX 4090, was a late-stage engineering sample and not a finished retail product. This was unknown to us before producing this analysis and naturally the results shown must be viewed with that in mind. We will aim to get a final retail sample as soon as possible to revisit the performance. Read more on this HERE.

When I first got hands-on with Acer’s Predator Orion X prebuilt system and found out that not only does it use a custom-made RTX 4090, but one that is actually liquid cooled with a built-in pump and radiator… well, you just know I had to take a closer look! In today’s analysis, we take this card out of the Orion X and put it into our regular GPU test system to see how it stacks up against a range of RTX 4090 cards from more established brands, and it did not go how I expected…

RTX 4090 RTX 4080 RTX 3090 Ti RTX 3090 RTX 3080 Ti RTX 3080
Process TSMC N4 TSMC N4 Samsung 8N Samsung 8N Samsung 8N Samsung 8N
SMs 128 76 84 82 80 68
CUDA Cores 16384 9728 10752 10496 10240 8704
Tensor Cores 512 304 336 328 320 272
RT Cores 128 76 84 82 80 68
Texture Units 512 304 336 328 320 272
ROPs 176 112 112 112 112 96
GPU Boost Clock 2520 MHz 2505 MHz 1860 MHz 1695 MHz 1665 MHz 1710 MHz
Memory Data Rate 21 Gbps 22.4 Gbps 21 Gbps 19.5 Gbps 19 Gbps 19 Gbps
L2 Cache 73729 KB 65536 KB 6144 KB 6144 KB 6144 KB 5120 KB
Total Video Memory 24GB GDDR6X 16GB GDDR6X 24GB GDDR6X 24GB GDDR6X 12GB GDDR6X 10GB GDDR6X
Memory Interface 384-bit 256-bit 384-bit 384-bit 384-bit 320-bit
Memory Bandwidth 1008 GB/Sec 716.8 GB/Sec 1008 GB/Sec 936 GB/Sec 912 GB/Sec 760 GB/Sec
TGP 450W 320W 450W 350W 350W 320W

First, for a quick spec recap. Using TSMC's 4N node has allowed Nvidia to vastly increase transistor count, up from 28.3 billion with GA102, to a staggering 76.3 billion with the largest Ada GPU, AD102. Accordingly, core count has gone through the roof, with the RTX 4090 home to 16384 CUDA cores, with 512 Tensor cores and 128 RT cores, with a sizeable increase to the ROP count too, up to 176.

Such a leap forward in process node has also allowed Nvidia to crank the clock speed significantly, with the RTX 4090 now sporting a 2520MHz rated boost clock. Acer has left their model at stock clocks.

Memory configuration is almost identical to the RTX 3090 Ti, with 24GB GDDR6X running at 21Gbps, operating over a 384-bit interface, totalling memory bandwidth of just over 1TB/s. That said, there has been a substantial upgrade to the L2 cache with the Ada architecture, with the RTX 4090 now offering 73MB, compared to 6MB for GA102.

Power draw also remains at 450W, as per the RTX 3090 Ti, with Acer's custom card also coming in at that stock power figure.

Become a Patron!

Check Also

Horizon multiplayer game still in the works following PlayStation layoffs

Sony announced earlier this week that it would be laying off hundreds of staff members …