AMD RDNA 5 (UDNA) and the Radeon RX 10900 XT: what's actually leaked

The interesting part of the RDNA 5 rumor isn't a spec — it's a strategy shift. AMD executives have publicly outlined a planned move to a unified “UDNA” architecture that would merge its RDNA gaming line with its CDNA data-center line — first described by AMD's Jack Huynh in 2024, though AMD has published no formal UDNA spec. Leaks use both names, RDNA 5 and UDNA, for the anticipated next-gen architecture. After RDNA 4 (the Radeon RX 9000 series) deliberately topped out in the mid-range, AMD is rumored to return to the high end with it, with a flagship built to go after NVIDIA's next-generation card. This page lays out what's been reported, who reported it, and which parts are speculation. If you want a card you can actually buy today, jump to our best graphics cards of 2026.

Where these "specs" come from

This matters more than the numbers. The detailed RDNA 5 flagship specs that spread across the web trace primarily to one source: YouTube leaker Moore's Law is Dead (MLID). Outlets including TweakTown, Hardware Times, and PCGamesN wrote it up (their headlines use "rumored," "may feature," and "reportedly"), and forums re-posted it. But those aren't independent leaks — they're re-reports of the same origin. As the leakers themselves note, the specs are "incredibly subject to change."

Even the card's name isn't settled: it's reported as the Radeon RX 10900 XT in most coverage, but as the RX 10090 XT in others — a good reminder of how early and unverified this is.

The two leaks don't agree

Most write-ups quote one set of numbers. In reality there are two competing leaks, and they disagree on the two specs that matter most — compute units and memory bus. We show both rather than pick a winner:

Camp A traces to Moore's Law is Dead, via TweakTown and Hardware Times. Camp B traces to leaker Kepler_L2, via VideoCardz and Wccftech. Both agree the flagship die is "AT0"; they disagree sharply on its size, and a third rumor muddies it further with an "over 12,000 cores" claim that fits neither camp. None is confirmed. The comparison table below uses the more widely-cited Camp A figures.

The rumored RDNA 5 flagship, vs the rumored RTX 6090

The most-repeated framing is a next-gen flagship face-off. Here's the rumored Radeon RX 10900 XT next to the rumored NVIDIA RTX 6090 — both columns are unconfirmed, and neither company has announced anything:

Both columns are rumored and unconfirmed. The AMD figures trace to Moore's Law is Dead via the outlets linked above; the NVIDIA figures are covered on our RTX 6090 rumors page. Numbers may change or prove wrong entirely.

The real story: AMD returning to the high end

The headline isn't the 36 GB — it's that AMD is rumored to build a flagship at all. RDNA 4 (Radeon RX 9000) was a deliberately mid-range generation: strong value in the mainstream, no halo card chasing the RTX 5090. The RDNA 5 rumor reverses that: a large "AT0" die, roughly 154 compute units (about 10,000 shader cores), 36 GB of GDDR7 on a 384-bit bus, and a board power near 380 W — the profile of a card built to compete at the top, per Hardware Times.

On process, the leaks diverge: most cite TSMC N3P (a refined 3 nm node), while at least one report points to a 2nm-class process. Either way, the rumored positioning is the same — a genuine high-end Radeon, which the market hasn't had since the RX 7900 XTX generation.

RDNA 5 architecture: Neural Arrays, Radiance Cores and Universal Compression

Beyond the raw specs, three new architectural building blocks define the generation — and unlike most of this page, they aren't a leak. AMD disclosed all three under Project Amethyst, its architecture collaboration with Sony, in October 2025. So the blocks themselves are AMD-confirmed; what's still rumored is only their exact configuration in the RX 10900 XT:

• Radiance Cores — dedicated ray-tracing hardware, rumored to move RT off the shaders the way NVIDIA's RT cores do. Aimed squarely at AMD's biggest historical weakness against GeForce.
• Neural Arrays — a reworked AI/ML engine: the on-GPU muscle for upscaling and frame generation, and a natural fit for local-AI work (see our best GPU for local AI).
• Universal Compression — a bandwidth-optimisation technique meant to stretch effective memory bandwidth, relevant given the 384-bit vs 512-bit bus disagreement.

On the node, the same leak quantifies TSMC N3P at roughly 18% faster clocks, 36% lower power and a 24% smaller die versus the older N5-class process, with a claimed 5–10% IPC uplift over RDNA 4 at the same clocks. One more lineup rumor: 8 GB is dropped entirely, with 12 GB the minimum across the RDNA 5 stack — which would track where the market is already heading (our is 8GB of VRAM enough in 2026? covers where the floor sits now). All of it is unconfirmed.

FSR Diamond: AMD's answer to DLSS

The software half of the story is FSR Diamond, a next-gen upscaler AMD has announced for the next Xbox, developed with Microsoft — positioned as AMD's counter to NVIDIA's DLSS. Unlike the raw specs, this one is AMD-confirmed, not a leak. Upscaling is where AMD has trailed most; if FSR Diamond genuinely closes the gap with DLSS, it matters as much as any core count. For how the current generation compares, see our DLSS 4 vs FSR 4 breakdown.

RDNA 5 and the consoles: PS6 and Xbox "Project Helix"

Here's the detail that makes the 2027 timing credible rather than wishful: multiple outlets report that both the PlayStation 6 and the next Xbox (codenamed "Project Helix") will use RDNA 5 semi-custom silicon, both targeting 2027. That's the real reason to take the window seriously — if AMD has RDNA 5 silicon ready for two console launches in 2027, a desktop Radeon on the same architecture is a natural follow-on. It's also why an "Xbox-optimised" FSR Diamond fits: the console and PC roadmaps would share the architecture. (Still a rumor — none of Sony, Microsoft or AMD has confirmed the silicon.)

Is it really an "RTX 6090 killer"?

That phrase shows up in a lot of the coverage, so it's worth being clear: it's a rumor about intent, not a benchmark result. No RDNA 5 or RTX 60-series silicon has been tested by anyone. What the leaks claim is that AMD is targeting RTX 6090-class performance — per PCGamesN and others — not that it has been shown to match it. AMD's recent generations have been competitive in raster and improving in ray tracing while trailing NVIDIA at the very top; whether RDNA 5 closes that gap is exactly the kind of claim that only real hardware can settle.

One number the leaks do let you frame today: the rumored ~380 W board power sits well under the RTX 5090's real 575 W. If both the power and the performance targets held, that would be a genuine perf-per-watt story — but "if" is doing all the work, since only one side of that comparison is a card you can actually buy.

Release date and price

Release window: the rumors cluster on mid-2027, per TweakTown, and add-in-board sourcing around Computex 2026 has since firmed the window to mid-to-late 2027, with some partners reportedly tipping early 2028. That lines up roughly with the rumored RTX 6090 timing, setting up a potential next-gen head-to-head. One wildcard: the same 2026 DRAM/memory shortage that reportedly pushed NVIDIA's RTX 60 series back could squeeze AMD's schedule too — high-VRAM GDDR7 cards are exactly what the shortage makes expensive. None of it is a confirmed date.

Price: there is no leaked or official MSRP. Speculation in the coverage lands around $1,000–$1,500 for the flagship, reasoning from AMD's history of undercutting NVIDIA's flagship pricing — but that's a guess with no leaked number behind it, and the same 2026 GDDR7 shortage could push high-VRAM cards higher. Treat the range as speculation, not a price.

What is not confirmed (the honest list)

• Anything from AMD. No announcement, teaser, or official spec.
• The card's name. "RX 10900 XT" vs "RX 10090 XT" — even that isn't settled.
• The process node. N3P vs a 2nm-class node, depending on the report.
• Performance vs the RTX 6090. A stated target, not a measured result.
• Price and exact launch date. No credible figures exist.

We'll update this page if AMD confirms anything or a genuinely new, multi-source leak appears. Until then, it's rumor.

Frequently asked questions

When will AMD RDNA 5 (Radeon RX 10000 series) be released?

AMD has not announced a date. The most-repeated leak, originating with Moore's Law is Dead, points to a 2027 launch; add-in-board sourcing around Computex 2026 has since firmed that to mid-to-late 2027, with some partners reportedly tipping early 2028. It roughly lines up with the rumored RTX 60 series. None of it is confirmed by AMD.

What are the rumored Radeon RX 10900 XT specs?

Two leaks disagree. Moore's Law is Dead reports ~154 compute units (about 10,000 cores) on a 384-bit bus with 36 GB of GDDR7 and ~380 W, on an “AT0” die. Leaker Kepler_L2 (via VideoCardz) instead reports 96 compute units on a 512-bit bus with up to 128 MB of Infinity Cache; a third rumor even claims “over 12,000 cores.” Both main camps agree the flagship die is “AT0” but split sharply on its size, and some leaks call the card the RX 10090 XT. Every figure is unconfirmed.

What is AMD UDNA, and is it the same as RDNA 5?

They refer to the same anticipated generation. UDNA is AMD's stated plan -- outlined by executive Jack Huynh in 2024 -- to merge its RDNA gaming line and CDNA data-center line into one unified architecture. Leaks use “UDNA” and “RDNA 5” interchangeably, though AMD has published no formal UDNA spec.

Will RDNA 5 have better ray tracing? What are Radiance Cores?

AMD disclosed three new architecture blocks under Project Amethyst (its collaboration with Sony, October 2025): Radiance Cores -- dedicated ray-tracing hardware aimed at AMD's historical RT weakness; Neural Arrays -- a reworked AI/ML engine for upscaling and frame generation; and Universal Compression -- a memory-bandwidth optimisation. The blocks are AMD-confirmed; only their exact configuration in the RX 10900 XT is still rumored.

What is FSR Diamond?

FSR Diamond is a next-generation AMD upscaler, announced for the next Xbox and developed with Microsoft -- positioned as AMD's answer to NVIDIA's DLSS. AMD has confirmed it; the open question is how it compares to DLSS in practice. Upscaling is where AMD has trailed most, so a DLSS-class FSR would matter as much as any core count.

Will the PlayStation 6 use RDNA 5?

Multiple leaks report that both the PS6 and the next Xbox (codenamed “Project Helix”) will use RDNA 5 semi-custom silicon, both targeting 2027. This is the most credible part of the timeline -- if AMD has RDNA 5 ready for two console launches in 2027, a desktop Radeon on the same architecture is a natural follow-on. Sony, Microsoft and AMD have all stayed silent.

Is the RX 10900 XT really an “RTX 6090 killer”?

That framing comes from the leaks, not from benchmarks -- no RDNA 5 or RTX 60-series silicon has been tested. The rumor is that AMD returns to the high end with RDNA 5 (after RDNA 4 topped out in the mid-range) and targets NVIDIA's next flagship. Whether it actually matches the RTX 6090 is pure speculation until real hardware exists.

Is RDNA 5 faster than the RTX 5090?

Unknown -- nothing has been tested. The rumored profile (~154 CU, 36 GB, ~380 W) is built to compete at the top, and at a rumored 380 W versus the RTX 5090's real 575 W the leaks imply a perf-per-watt angle. But “built to compete” is a target, not a result. For cards you can compare today, see our best graphics cards of 2026.

How much will the Radeon RX 10900 XT cost?

There is no leaked or official MSRP. Speculation in the coverage lands around $1,000-$1,500 for the flagship, reasoning from AMD's history of undercutting NVIDIA -- but that is a guess with no leaked number behind it, and a 2026 GDDR7 memory shortage could push high-VRAM cards higher.

Should I wait for RDNA 5 or buy a GPU now?

If you need a card today, don't wait on a 2027 rumor with no confirmed specs, price, or date. Buy from the current 2026 lineup. Waiting only makes sense if you already own a high-end card and are simply curious -- and even then, 2027 is a rumor, not a plan.

Is RDNA 5 confirmed by AMD?

No. Beyond the UDNA strategy direction, AMD has made no announcement, spec, or teaser for RDNA 5 or the RX 10000 series. Every figure and timeline in circulation traces to leakers and industry speculation -- chiefly Moore's Law is Dead -- not to AMD.

In the meantime: GPUs you can actually buy

A mid-2027 rumor doesn't help you build a PC today. If you're shopping now:

• Best graphics cards of 2026 — the current NVIDIA and AMD lineups, ranked by value, with real pricing.
• GPU benchmark hierarchy 2026 — where every current card lands on raster, ray tracing, and value.
• RTX 6090 rumors — the NVIDIA side of this next-gen story, tracked with the same honest framing.
• RTX 50 Super refresh — the nearer-term (and messier) NVIDIA rumor, if you're weighing a wait.
• Zen 6 vs Nova Lake — the next-gen CPU side (Ryzen 10000 vs Core Ultra 400), same CES 2027 window.
• RTX 60 series (full lineup) — NVIDIA's rumored next-gen stack, the roadmap RDNA 5 is aimed at.
• Best GPU for local AI — where high-VRAM cards matter most today (the Neural Arrays angle, now).
• GPU FPS benchmarks — real-game frame rates across resolutions for the cards you can buy.

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