AMD Navi 14 could be obtainable in 5 variants, a Linux driver entry suggests.

AMD Navi 14 XTX, XT, XL XLM, XL

Inside the agd5f/linux repository yow will uncover a model new entry with 5 Navi 14 GPU variants listed. Let’s look nearer at this data.

The clocks

A number of of you won’t be accustomed to a time interval of a peak clock. It is a definition of the perfect achievable frequency for a specific GPU. For Vega Frontier, the marketed improve clock was truly further a peak clock. This, nonetheless, has modified for Navi period, as peak clock was primarily renamed to improve clock, and one factor that is typically commonly known as a improve clock is now known as a sport clock. I do know, it is pretty difficult.

For Navi GPUs, tech journalists are more likely to check with an actual-in-game clock as a improve block (Navi’s Sport Clock). It is nonetheless not pretty the equivalent as NVIDIA’s Enhance Clock (which is usually lower than the exact clock), however it merely matches larger with any comparisons. For Navi period, the exact frequency sits between the marketed sport clock and improve clock (check this TPU review for instance).

A Story of GPU Clocks
VideoCardz.com Base Clock Marketed Typical Clock Peak Clock
Turing (Promoting and advertising and marketing) Base Clock Enhance Clock
Vega (Promoting and advertising and marketing) Base Clock Enhance Clock
Navi (Promoting and advertising and marketing) Base Clock Sport Clock Enhance Clock
Navi (Linux Devs) Base Clock Peak Clock

TIL:

  • Navi promoting Sport Clock -> widespread Enhance Clock
  • Navi promoting Enhance Clock -> achievable Peak Clock
  • Navi Linux Devs Peak Clock -> promoting Sport Clock -> widespread Enhance Clock

The GPUs

As you most likely already know Radeon RX 5700 assortment choices three completely totally different GPU variants: XTX, XT, and XL. The XTX variant was not publicly marketed (even after the evaluations went reside). Nonetheless, we confirmed that XTX is reserved for 5700 XT 50th Anniversary SKU.

The most recent entry throughout the Linux repo moreover lists the XTX variant for Navi 14, nevertheless at this degree, it’s mindless to anticipate a 50th anniversary SKU for the RX 5500 SKU. We moreover know that the XT variant is already in the RX 5500.

That acknowledged, an knowledgeable guess might be to anticipate Navi 14 XTX with Radeon RX 5500 XT, which was already seen in some places, resembling EEC entries:

GV-R55XTOC-8GD,GV-R55XTGAMING-8GD,GV-R55XTWF2-8GD,GV-R55XTD6-8GD

As you can see, the GPU variant naming schema is a bit of bit of a giant quantity. These are sometimes not used for promoting (for obvious causes), nevertheless they’re very useful for decoding the goal of the GPU. Please do not cope with this chart as a tenet, that’s merely an illustration of the popular ones.

Widespread AMD GPU Variants (Gaming)
GPU Occasion Power Diploma Platform SKU Occasion
[GPU] XTX Navi 10 XTX 🟩🟨🟧🟥 Desktop RX 5700 XT Anniversary
[GPU] XT Navi 10 XT 🟩🟨🟧 Desktop RX 5700 XT
[GPU] XL / PRO Navi 10 XL 🟩🟨 Desktop RX 5700
[GPU] LE Cape Verde LE 🟩 Desktop HD 6570
[GPU] XTM Navi 14 XTM 🟩🟨🟧 Mobile RX 5500M
[GPU] XLM / MXL Navi 14 XLM 🟩🟨 Mobile ?
[GPU] M XT LexaM XT 🟩🟨🟧 Mobile RX 550
[GPU] M PRO LexaM Skilled 🟩🟨 Mobile 540X
[GPU] M ULP LexaM ULP 🟩 Mobile 540

The following chart depends on the model new information from Linux repo. Potential Radeon SKUs to be using these clocks have been moreover added.

Navi GPU Clocks (MHz)
Radeon SKU Base Sport Peak Enhance Enhance Peak
Navi 10 XTX RX 5700 XT 50th Ann. 1680 1830 1980
Navi 10 XT RX 5700 XT 1605 1755 1905
Navi 10 XL RX 5700 1465 1625 1725
Navi 14 XTX RX 5500 XT (?) ? 1717 ?
Navi 14 XT RX 5500 ? 1670 1845
Navi 14 XL RX 5300 (?) ? 1448 ?
Navi 14 XTM RX 5500 ? 1448 1645
Navi 14 XLM RX 5300M (?) ? 1181 ?

It’s normally worth noting that Navi 14 XTX may be outfitted with further cores, as solely 22 CUs are enabled on the XT variant. The entire silicon has 24 CUs:

Provide: Freedesktop via Reddit

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