AMD launches RDNA 3, RX 7900 XT and XTX, its next-generation GPU and technology

In their typical two-stage goliath, AMD follows recent Nvidia developments GeForce RTX 4000/Ada Lovelace Architecture debut with its competing series, the Radeon RX 7000 line, and its own architecture upgrade, RDNA 3. The first two cards to be released will be the RX 7900 XTX and RX 7900 XT, shipping December 13, for $999 and $899, respectively.

Both cards are aimed at 4K, high frame rate, high quality gaming and streaming, but AMD is also pitching the XTX as a 8K Gaming GPUs. And to prove that 8K is coming, the company has teased an upcoming Samsung Odyssey Neo G9 8K widescreen monitor slated for its real CES announcement in January. The company also says we’ll see high-resolution DisplayPort 2.1 monitors from early 2023 from companies like Dell, Asus, LG and Acer and Samsung.

Features

AMD Radeon RX 7900 XTX

Radeon RX 7900 XT

Memory

24 GB of GDDR6 memory

20 GB of GDDR6 memory

Memory Bandwidth (GBps)

960 (up to 3,500 with 96MB Infinity Cache)

800 (up to 2900 with 80MB Infinity Cache)

GPU frequency (GHz, base/boost)

1.9/2.5

1.5/2.4

Memory/interface data rate

20Gbps/384bit

20Gbps/320bit

Computing units and ray accelerators

96

84

Streaming Multiprocessors

6,144

5,376

Treat

5nm and 6nm

5nm and 6nm

TGP/min PSU (Watts)

355/800

300/750

Connectors

2x DP 2.1, 1x HDMI 2.1, 1x USB-C

2x DP 2.1, 1x HDMI 2.1, 1x USB-C

Cut

2.5 slots; 11.3 inch / 287 mm long

2.5 slots; 10.9 inch / 276 mm long

Introductory price

$999

$899

Shipping date

December 13

December 13

In addition to AMD’s in-house cards, third-party cards will be available from AMD’s usual partners, such as Asus.

RDNA3

8K? Well, RDNA 3 and newer GPUs add support for DisplayPort 2.1, which has the bandwidth to support 165Hz 8K at 12-bit per color (instead of 10-bit) for HDR and to enable coverage full range of Rec.2020, or up to 480Hz in 4K. It’s a link bandwidth of up to 54 Gbps, compared to 20 Gbps in DP 1.4a, which Nvidia cards still use.

Keep in mind that GPUs are generally way ahead of monitors when it comes to color and bit depth. (So ​​be prepared for meaningless, breathless exclamations of “68 billion colors!” in monitor marketing materials.)

DP 2.1 works in conjunction with AMD’s new Radiance display engine, which also supports simultaneous HEVC encoding and decoding up to 8K/60p (a boost for streamers), acceleration of AV1 encoding and AI-enhanced encoding via a dedicated AI acceleration silicon.

The RDNA 3 architecture improves on RDNA 2 in several ways. It is the first GPU built from chipletsthe modular building blocks of modern processor design.

For one, it allows AMD to use different process sizes on the same die, in this case a 5nm graphics core and a 6nm memory cache die. This can translate into the ability to optimize the performance of the two separately, increase power or speed where it does the most good, and ultimately fit a better processor in the same space and the same power envelope as previous models.

It allows AMD to add dedicated AI acceleration and improved ray-tracing accelerators — a weakness it traditionally has over Nvidia’s RTX cores — and decouple memory clock speeds from laptop speeds. computing unit to help conserve power consumption. AMD claims the GPU gets better DirectX ray tracing (DXR) performance.

The chiplet arrays incorporate the second generation Infinite Cache which streamlines the use of available memory compared to the previous version, meaning it doesn’t have to pull as much system memory – a faster, lower latency approach weak.

And SmartAccess Video joins the company’s other “smart” technologies, such as Smart Access Memory. In this case, when you have a system equipped with a Ryzen 7000 CPU and RX 7000 GPU, it can split the encoding and decoding tasks between the two for better performance. This happens from December.

AMD Advantage Desktops

SAV takes into account the company’s new partner program for desktop computers similar to its AMD advantage for laptopswhich essentially means that a system uses all of AMD’s cutting-edge technologies, along with robust cooling (with a liquid-cooled processor), high-end system design with tool-free entry, at least 32 GB of memory DDR5 and an 80 Plus Gold power supply.

The program appears to be aimed at custom build companies – at least initially – given that the highlighted list of partners are CyberPower PC, Falcon Northwest, Maingear, Origin PC and others.

FidelityFX Super Resolution 3 and Adrenaline

AMD didn’t provide any details for the biggest update to its performance-tuning algorithms (I can’t call it DLSS and “upscaling” anymore, as they’ve both significantly outgrown those roots), FSR 3, but on the surface, “Fluid Motion Frames” looks a lot like Nvidia’s frame generation, DSLS 3’s biggest update.

If it does the same, Fluid Motion Frames improves speculative rendering from “what does this pixel look like in the next frame” to “how is the next frame different and how does that translate into changes in a given pixel” for lower latency without loss of detail in detailed scenes.

AMD’s Adrenalin gaming hub-slash optimization utility will also introduce a notable new feature in the first half of 2023, dubbed “Hyper-RX” mode: it will be a one-click optimizer for performance and latency which takes into account all parameters you would normally research and adjust individually. For those of us who love faster, but can live without the hassle of the fastest setting.

The best laptops in every category

Leave a Comment