RTX Titan Ada prototype allegedly surfaces with 18,432 CUDA cores and 48GB VRAM — GPU-Z screenshot shows a full AD102 GPU die

Specifications of Nvidia's unreleased RTX Titan Ada GPU have allegedly surfaced on Reddit. A GPU-Z screenshot and photograph shared by FluxRBLX on the Nvidia subreddit reveals the rumored but never shipped RTX Titan Ada GPU specifications featuring a fully enabled AD102 GPU and a whopping 48GB of VRAM.

The GPU-Z screenshot reveals many details on the purported Titan Ada GPU prototype, including core counts, memory configuration, device ID, and more. The GPU would have had 18,432 shaders (CUDA cores), 192 ROPs, 576 TMUs, a pixel fillrate of 478.1 GPixel/s, and a Texture Fillrate of 1,434.2 GTexel/s. The memory subsystem has 48GB of capacity (48GiB if we're being precise), featuring GDDR6 (non-x) ICs on a 384-bit wide memory interface with 864 GB/s of memory bandwidth.

Base clock speeds are significantly lower than any outgoing RTX 40 series (Ada Lovelace) GPU, with GPU-Z reporting a clock speed of just 735 MHz. However, boost clocks look far more conventional, rated at 2,490 MHz. The abnormally low base clocks are likely a byproduct of the early nature of the hardware, as this card was purportedly a prototype. That could also explain the use of GDDR6 instead of GDDR6X.

Compared to the RTX 4090, the RTX Titan Ada outclasses it in shader count and memory capacity. The Titan Ada features a fully enabled AD102 die, which would have made it the only RTX-branded GPU in the 40-series family to have a fully unlocked die. The RTX 4090 has access to 89% of the AD102 die.

Memory capacity is also doubled on the Titan Ada GPU, inevitably due to using a "clamshell" configuration with the GDDR6 modules on both sides of the PCB, similar to the RTX 3090 or RTX 6000 Ada. GDDR6 manufacturers don't make GDDR6 memory chips with a capacity greater than 2GB, making this configuration the only option to achieve 48GB on the Titan-class GPU.

One area where the RTX 4090 outperforms the Titan Ada is in memory bandwidth, thanks entirely to its GDDR6X memory. The Titan Ada prototype had slower GDDR6 memory modules, which reduces its bandwidth potential compared to the RTX 4090. Nvidia either didn't plan to use the speedier GDDR6X modules, or perhaps it never got that far. Cooling may have been a concern due to the clamshell layout of the memory chips; the RTX 3090 was shipped in the same configuration as the GDDR6X modules, but the RTX 3090 also suffered from memory temperature issues.

The Reddit poster also shared a PCB shot of the supposed RTX Titan Ada GPU. Assuming the image is legitimate, the PCB looks virtually identical to equivalent RTX 4090 PCBs. The giant AD102 die is in the middle, flanked by 12 of 24 memory ICs. The GPU and memory power delivery components line the right and left sides of the PCB. The PCB pictured is likely a reference design, as Nvidia doesn't normally allow non-reference Titan cards (even if it doesn't have "Founders Edition" branding).

Since this GPU was never released, Nvidia hasn't explained why it never brought the RTX Titan Ada to the market. However, Nvidia likely canceled the product due to internal competition that would have arisen between it and workstation-class GPUs, such as the RTX 6000 Ada that sells for $6,800. Furthermore, AMD didn't have an answer for the RTX 4090, so the RTX Titan Ada might have been overkill, at least for the average gamer.