The frequency of RDNA 4 leaks is picking up, possibly suggesting the first graphics cards built with the architecture aren’t too far away. So, until AMD plays its hand, there’s plenty for us to mull over courtesy of the rumour mill. Recent whispers claim to give us a glimpse at cache and memory specs, while also implying that three new GPU dies are en route.
Based on what we know about RDNA 4 so far, AMD is crafting best graphics card contenders for the midrange market downwards. This apparently wasn’t always the company’s plan, but alleged difficulties developing the architecture have seemingly forced it to abandon any ambition to challenge high-end offerings from competitors. Despite this unfortunate turn of events, there may still be plenty worth getting excited about with prospective Radeon RX 8000 series pixel pushers.
In a conversation on X, Radeon leaker Kepler_L2 shared specs for three alleged RDNA 4 GPUs. We know AMD has at least two dies in the works, Navi 48 and 44. However, if our rumour monger’s claims prove true, Team Red may be planning to launch XTX, XT, or XL variants.
| Navi 48 XTX | Navi 48 XT | Navi 44 XT | |
|---|---|---|---|
| Memory bus (bits) | 256 | 256 | 192 |
| Memory bandwidth (Gbps) | 20 | 18 | 19 |
| Infinity cache (MB) | 64 | 64 | 48 |
According to Kepler_L2, AMD is cooking up two GPUs that are largely identical, save for memory speed. They each sport 256-bit memory buses and 64MB of infinity cache, but one boasts 20Gbps of bandwidth to the other’s 18Gbps. Each likely shares the same parent die, with one featuring a small handful of cut down specifications.
One of these likely powers the RDNA 4 graphics card spotted on Geekbench, but it’s impossible to know which for the moment. Referring back to the current Radeon RX 7000 series lineup, these seem like logical candidates for a Radeon RX 7800 XT successor. Of course, architectural improvements should see it perform higher than the midrange graphics card, perhaps closer to Radeon RX 7900 XT.
Meanwhile, another GPU will feature a 192-bit bus width, 48MB of infinity cache, and 19Gbps of memory bandwidth. We hope this is a Radeon RX 7600 XT successor, rather than a 700 class card. However, the only model in AMD’s current stack to use a 192-bit bus is Radeon RX 7700 XT. Architectural differences usually make these comparisons somewhat moot, but it’s a useful springboard for guestimates in lieu of an official word from Team Red.
Some hope that RDNA 4 will arrive in October, just shy of two years since AMD launched RDNA 3. I’m not entirely convinced, preferring to err on the side of caution and place my bets on CES 2025. I’d much rather the next batch of Radeon cards were spared the same messy launch that its Zen 5 cousins are enduring. Patching up a release after it’s been and gone is much more difficult than simply getting it right the first time around.
Regardless, RDNA 4 will have competition from both Nvidia RTX 50 series and Intel Battlemage graphics cards in the months to come. I personally can’t wait to see what this new generation of graphics brings, particularly as each manufacturer appears to be focussing on different market segments.
