AMD's RDNA 5 / UDNA GPUs could end up featuring a big increase in compute units as revealed by leaker, Kepler_L2, with as many as 96 on the flagship die.
AMD Rumored To Be Going For Up To 96 Compute Units On Top RDNA 5 / UDNA GPUs, Along with 64 & 32 CU Variants
So far, there hasn't been a lot of data available on the next-gen architecture for Radeon Gaming GPUs. AMD itself has only mentioned that the upcoming architecture will unify the paths between its RDNA & CDNA lineups, calling it a unified DNA. Some earlier rumors pointed to this architecture being an entirely brand new design that will be built from the ground up, and also offer some huge improvements in the raytracing / AI department.
There hasn't been a lot of talk about what we can expect of the configurations based on the RDNA 5 / UDNA architecture, but it looks like we might have our first hint from Kepler_L2, who has pointed out three potential die configurations. These include the following:
- Navi 5X (Top): 96 CUs + 384-bit memory bus
- Navi 5X (Mid): 64 CUs + 256-bit memory bus
- Navi 5X (Low): 32 CUs + 128-bit memory bus
The top AMD RDNA 5 / UDNA GPU configuration might feature up to 96 compute units, which will be a 50% boost over the 64 compute units featured on the top RDNA 4 GPU. The GPU will also feature a 384-bit memory bus instead of the 256-bit bus, leading to higher memory capacities, and potentially offering denser VRAM dies for unprecedented amounts of VRAM (3 GB G7?). Now we know that AMD's Radeon RX 9070 XT already reaches performance close to the RTX 5080 in many cases with just 64 compute units, so a 96 compute unit die based on the next-gen architecture will be a solid uplift, probably matching or even exceeding NVIDIA's next 80-tier product.
This top die won't be the ultra-enthusiast or NVIDIA 90-class killer that many have been looking forward to but it will still retain an enthusiast positioning, and offer much better value. It is stated that the die will be very similar to Navi 31 which also featured 96 compute units, and a 384-bit bus interface.
Then we have the mid-tier 64 compute unit die with a 256-bit memory bus. This will be the same type of configuration that we saw with the 9070 XT, but the updated CUs, RT cores, and AI engines will provide a solid uplift over the predecessor. Lastly, there's the entry-level 32 CU die with a 128-bit memory bus. This retains the same config as the 9060 series, but once again, the updated architecture, process technology & use of higher bandwidth memory can lead to decent uplifts.
The 128-bit memory bus might be a bit of concern for a graphics card launching between 2026-2027, but once again, we can't ignore the fact that denser VRAM modules will be available in ample supply by that time, and both NVIDIA and AMD will be using those to finally end the 8 GB dilemma for entry-level products.
Now, it should be mentioned that Kepler states these are his guesses for the upcoming RDNA 5 / UDNA GPU lineup, but they are still interesting to talk about. AMD's next-gen gaming lineup is expected to enter mass production by Q2 2026, so it will be some time before we get any concrete information. This will be around the same time NVIDIA will have its "SUPER" series out, while Intel will probably release its BMG-G31 "Big Battlemage" lineup. So, as far as GPUs are concerned, the start of 2026 should be very exciting for PC gamers.
Potential AMD RDNA 5 / UDNA GPU Configurations (via Kepler_L2):
| GPU Die | Navi 5X | Navi 5X | Navi 5X | Navi 5X |
|---|---|---|---|---|
| Positioning | Flagship-Tier | Mid-Tier | Low-Tier | Entry-Tier |
| Max Compute Units | 96 CUs (12288 Cores) | 40 CUs (5120 Cores) | 24 CUs (3072 Cores) | 12 CUs (1536 Cores) |
| Max Memory Bus | 512-384 bit | 384-192 bit | 256-128 bit | 128-64 bit |
| Max VRAM Capacity | 24-32 GB | 12-24 GB | 8-16 GB | 8-16 GB |
Follow Wccftech on Google to get more of our news coverage in your feeds.
