AMD announced the new AMD Radeon™ RX 7900 XTX and Radeon RX 7900 XT graphics cards built on the new RDNA™ 3 architecture.
AMD said the new graphics cards are the world’s first gaming graphics cards that incorporate an innovative AMD chiplet design, following on from AMD Ryzen™ chiplet processors. They provide excellent performance and exceptional energy efficiency to power high-framerate 4K and higher resolution gaming in the most demanding titles.
AMD RDNA 3 architecture’s chiplet design incorporates 5nm and 6nm process nodes, each optimised for certain jobs. The groundbreaking architecture outperforms AMD RDNA 2 architecture by up to 54 per cent in terms of performance per watt. It includes the world’s fastest interconnect, capable of joining the graphics and memory system chiplets at up to 5.3 TB/s. It also has up to 96 new unified compute units, second-generation AMD Infinity Cache™ technology, and up to 24 GB of high-speed GDDR6 memory with a memory interface of up to 384 bits. It also incorporates enhanced AI throughput for up to 2.7X better AI performance and second-generation raytracing technology for up to 1.8X better raytracing performance than AMD RDNA 2 architecture.
The new features and advances give up to a 1.7X performance boost in some titles at 4K. The new graphics cards also enable DisplayPort™ 2.1 monitors, which can deliver ultra-high framerates and spectacular visuals at refresh rates of up to 4K 480Hz and 8K 165Hz.
“These new graphics cards are designed by gamers for gamers. As we were developing the new cards, we not only incorporated feedback from our customers, but we built in the features and capabilities we wanted to use. We also realized that we needed to do something different to continue pushing the envelope of the technology, and I’m proud of what the team has accomplished with AMD RDNA 3 and the Radeon RX 7900 Series graphics cards. I can’t wait for gamers to experience the powerhouse performance, incredibly vivid visuals and amazing new features these new graphics cards offer,” Scott Herkelman, senior vice president & general manager, Graphics Business Unit at AMD, said.
Radeon RX 7900 Series Graphics Cards
According to AMD, Radeon RX 7900 Series gaming graphics cards unleash new levels of performance and efficiency while delivering a slew of new and improved features that enhance the gaming experience. In select titles, the AMD Radeon RX 7900 XTX graphics card outperforms the Radeon RX 6950 XT graphics card by up to 1.7X, while the Radeon RX 7900 XT graphics card outperforms the Radeon RX 6900 XT graphics card by up to 1.5X. Key characteristics include:
- AMD RDNA 3 Architecture — AMD RDNA 3 architecture, which includes an enhanced chiplet design, new computing units, and second-generation AMD Infinity Cache technology, gives up to 54 per cent more performance per watt compared to the previous-generation AMD RDNA 2 architecture. The new compute units distribute resources among rendering, AI, and raytracing to make the best use of each transistor for quicker, more efficient performance than the previous generation.
- Chiplet Design — The world’s first gaming GPU with a chiplet design achieves up to 15 per cent higher frequencies while saving up to 54 per cent power. It incorporates a new 5nm 306mm squared Graphics Compute Die (GCD) with up to 96 compute units for fundamental GPU capabilities. It also incorporates six new 6nm Memory Cache Die (MCD) at 37.5mm squared, each with up to 16MB of AMD Infinity Cache technology from the second generation.
- Ultra-Fast Chiplet Interconnect — The new chiplets employ AMD Infinity Links and high-performance fanout packaging to give up to 5.3TB/s of bandwidth, using the benefits of second-generation AMD Infinity Cache technology.
- Expanded Memory and Wider Memory Bus — The new graphics cards have up to 24GB of high-speed GDDR6 memory running at 20Gbps over a 384-bit memory bus to satisfy the requirements of today’s demanding titles.
- Dedicated AI Acceleration and Second-Generation Raytracing — Compared to AMD RDNA 2 architecture, new AI instructions and higher AI throughput can produce up to 2.7X greater performance. In contrast, second-generation raytracing technology can produce up to 1.8X more performance.
- DisplayPort™ 2.1 Support — Providing up to 54Gbps of display link bandwidth and supporting high-refresh 4K or 8K gaming on next-generation displays, these high-end gaming graphics cards are the only ones in the industry to enable DisplayPort 2.1 technology.
- New AMD Radiance Display™ Engine — Contrary to AMD RDNA 2 architecture, it offers higher refresh rate displays, 12-bit-per-channel colour, and support for DisplayPort 2.1 and HDMI 2.1a.
- High-Refresh Gaming — Unlike DisplayPort 1.4, DisplayPort 2.1 has more display bandwidth and can handle refresh rates of up to 900Hz, 480Hz, and 165Hz for 1440p, 4K, and 8K displays, respectively.
- Dual Media Engine — Delivers up to 1.8X higher engine frequency than AMD RDNA 2 architecture and enables AV1 encoding. Supports simultaneous encode or decode streams up to 8K60 for HEVC.
AMD FidelityFX™ Super Resolution 2.2 and AMD Software: Adrenaline Edition™ Technology
AMD is also launching new updates to its software package to support the new graphics cards, including:
- AMD Fidelity FX Super Resolution (FSR) — FSR 2.2 is the latest FSR temporal upscaling technology version. It is anticipated to be available in the first title, Forza Horizon 5, on 8 November 2022. GPUOpen.com will make it available to game developers.
- AMD FSR 3 — AMD intends to offer a new version of AMD FSR incorporating AMD Fluid Motion Frames technology in 2023, estimated to give up to 2X higher FPS in certain titles than AMD FSR 2.
- AMD HYPR-RX — A one-click preset that allows various AMD Software features, such as AMD Radeon Anti-Lag, AMD Radeon Boost, and AMD Radeon Super Resolution technologies, to collaborate at the same time, lessening latency and delivering up to 85 per cent higher FPS in Dying Light 2 Stay Human with the Radeon RX 7900 XTX graphics card and AMD Software: Adrenalin Edition™ 22.40.00.24, than stock settings.
- New AMD RDNA 3 Media Engine — AV1 hardware encoding enables up to 7X quicker video encoding at 8K compared to a software-only solution, and Xilinx Content Adaptive Machine Learning technology is included to improve text quality for lower resolution and bitrate streams.
- Improved Video Recording and Streaming — AMD worked with OBS to improve the video streaming quality on AMD Radeon RX 6000 and RX 7000 Series graphics cards. Furthermore, the AMD RDNA 3 Media Engine features AV1 hardware encoding to further improve and convert live broadcasting.
