Chiplets are coming to Gaming GPUs! The AMD Radeon RX 7000 “RDNA 3” Graphics Card Reveal Is Just 24 Hours Away, Tune in to The Livestream Here
The live stream has a unique aim and purpose, it will mark the unveiling of AMD’s next generation RDNA 3 GPUs that will power the Radeon RX 7000 series graphics cards. AMD will not only talk about the specifications but also about the features and the ecosystem software that will revolve around the new gaming chips. Join AMD for “together we advance_gaming”, announcing the next generation of GPUs based on the groundbreaking AMD RDNA™ 3 architecture, bringing new levels of performance, efficiency and functionality to gamers and creators. Our high-end RDNA 3 GPUs will offer strong increases in performance and performance per watt compared to our current products and will include new features that support high-resolution, high-frame-rate gaming. We look forward to sharing more details later this week. AMD CEO Dr. Lisa Su AMD has confirmed that its RDNA 3 GPUs will arrive later this year with a huge performance boost. The company’s Senior Vice President of Engineering, Radeon Technologies Group, David Wang, said that the next-generation GPUs for the Radeon RX 7000 series will offer more than 50% performance per watt increase compared to the existing RDNA 2 GPUs. Some of the key features of RDNA 3 GPUs highlighted by AMD will include:
5nm process node Advanced Chiplet Packaging Re-architected Computing Unit Optimized graphics pipeline Next-generation AMD Infinity Cache Improved ray tracing capabilities Improved adaptive power management >50% Perf/Watt vs RDNA 2
Join us on November 3rd for the reveal of #RDNA3 and the world premiere of exciting new footage from @CallistoTheGame , @Forspoken , a sneak peek at something amazing from our friends at @Ubisoft , and more… Live at 4 p.m. at: pic.twitter.com/Yuy4BpRz94 — Radeon RX (@Radeon) November 2, 2022 The initial lineup is expected to include two cards based on the flagship Navi 31 GPU, the Radeon RX 7900 XTX 24GB and the Radeon RX 7900 XT 20GB. AMD Radeon RX 7900 XTX 24GB “Rumored” Graphics Card Specifications The AMD Navi 31 GPU, the flagship RDNA 3 chip, would power next-generation fan cards such as the Radeon RX 7900 XTX/XT graphics card. We’ve heard that AMD will ditch CUs (Compute Units) in favor of WGPs (Workgroup Processors) on their next-gen RDNA 3 GPUs. Each WGP will house double CUs (Computing Units) but with twice as many SIMD32 clusters as opposed to just 2 in each CU inside the RDNA 2. Rumor has it that AMD has the option to choose between Samsung and TSMC for the 6nm die.
AMD Navi 31 XTX: 12288 Cores, 384-bit Bus, 192 MB Infinity Cache, 308mm2 GPU Die @5nm AMD Navi 21 XTX: 5120 Cores, 384-bit Bus, 128 MB Infinity Cache, 520mm2 GPU Die @7nm
According to the latest information, the AMD Navi 31 GPU with RDNA 3 architecture is expected to offer a single GCD with 48 WGP, 12 SA and 6 SE. This will give a total of 12,288 SPs or stream processors. This is a 2.4x increase in cores compared to the 5120 SPs seen on the Navi 21 GPU. The GPU or Navi 31 GCD is said to be 308mm2 in size and will be packaged on TSMC’s 5nm process node. The Navi 31 GPU will also carry 6 MCDs that will have 16MB of Infinity Cache per die and are also likely to carry 64-bit (32-bit x 2) memory controllers that will give the chip a 384-bit bus interface. While this equates to 96MB of Infinity Cache, which is lower than the 128MB seen on current Navi 21 GPUs, there is also a 3D-Stacked solution in the works that was recently highlighted that would double the Infinity Cache to 32MB ( 16 MB 0-hi + 16 MB 1-hi) capacities for a total of 192 MB cache. This is a 50% increase compared to the current Navi 21 design and also makes the Navi 31 the first GPU with both chiplet and 3D stacked designs. These chiplets, or MCDs, will be manufactured on TSMC’s 6nm process node and measure 37.5mm2 each. AMD Radeon RX 7900 XT 20GB “Rumored” Graphics Card Specifications There will also be a chopped variant that will feature the Navi 31 XT GPU core. This chip is going to pack 42 WGP or 10,752 cores. That’s 12.5% fewer kernels than the full-fat version. The GPU will also run at slightly lower clock speeds, but power consumption will be lower.
AMD Navi 31 XT: 12288 Cores, 320-bit Bus, 160 MB Infinity Cache, 308mm2 GPU Die @5nm AMD Navi 21 XT: 4608 Cores, 256-bit Bus, 128 MB Infinity Cache, 520mm2 GPU Die @7nm
The graphics card will also feature 20GB of GDDR6 memory on a 320-bit bus interface. Since there are only 5 MCDs enabled, the card will end up with 80MB of Infinity Cache, which is 16MB less than the top version and a 16.6% reduction.
AMD Radeon RX 7900 XT “Preliminary” Specifications:
Graphics CardAMD Radeon RX 7900 XTXAMD Radeon RX 7900 XTAMD Radeon RX 6950 XTAMD Radeon RX 6900 XT GPUNavi 31 XTXNavi 31 XTNavi 21 KXTXNavi 21 XTX Process Node5nm+6nm5nm+6nm7nm7nm Die Size308mm2 (Only GCD)533mm2 (with MCDs)308mm2 (Only GCD)533mm2 (with MCDs)520mm2520mm2 TransistorsTBDTBD26.8 Billion26.8 Billion GPU WGPs48424040 Stream Processors122881075251205120 TMUs/ROPsTBDTBD320 / 128320 / 128 Game ClockTBDTBD2100 MHz2015 MHz Boost Clock>3 GHz>3 GHz2310 MHz2250 MHz FP32 TFLOPs>75 TFLOPs>65 TFLOPs23.65 TFLOPs23.04 Memory Size TFLOPs24 GB GDDR620 GB GDDR616 GB GDDR616 GB GDDR6 Cache Infinity96 MB80 MB128 MB128 MB Memory Bus 384-bit320-bit256-bit256-bit Memory Bandwidth GB8 GB8/ps ~20 GB 7bdps Clock~20 s512 GB/s Active BandwidthTBDTBD1728, 2GB/s1664.2GB/s TBP~400W~350W335W300W PCIe InterfacePCIe 5.0 x16PCIe 5.0 x16PCIe 5.0 x16PCIe 5.0 x16PCIe x16PCIe 4.0$$9T$16PCIe 4.0$Price $9T$16PCIe 4.0$$9T$16PCIe.
Improved adaptive power management and next-gen Infinity cache for RDNA 3 confirmed
AMD SVP & Technology Architect Sam Naffziger has already pointed out that the next-generation RDNA 3 GPUs featured in the Radeon RX 7000 GPUs and next-generation iGPUs will offer a number of new technologies, including a refined adaptive power management technology for workload setting – specific operating points, ensuring that the GPU uses only the power required for the workload. The GPUs will also feature a next-generation AMD Infinity Cache, which will offer high-density, lower-power caches and reduced power requirements for graphics memory. What’s next? Looking ahead, we continue our push for more efficient gaming with AMD RDNA 3 architecture. As AMD’s first graphics architecture to leverage our 5nm process and chiplet packaging technology, AMD RDNA 3 is on track to deliver approximately >50 percent better performance per watt than AMD RDNA 2 architecture – bringing truly top-notch gaming performance to gamers in cool, quiet, and energy-efficient designs. Contributing to this power-conscious design, AMD RDNA 3 enhances AMD RDNA 2 adaptive power management technology to set specific operating points for workloads, ensuring that each GPU component uses only the power it needs for optimal performance. The new architecture also introduces a new generation of AMD Infinity Cache, which is predicted to offer even higher density and lower power caches to reduce the power needs of graphics memory, helping to strengthen AMD RDNA 3 and Radeon graphics as true performance leaders . We’re excited about the improvements we’re making with AMD RDNA 3 and its predecessors, and believe we can get even more out of our architectures and advanced process technologies, delivering unmatched performance per watt across the stack as we continue to push for better gaming. through AMD AMD will reveal its RDNA 3 GPU architecture and Radeon RX 7000 graphics cards on November 3rd, with the actual release taking place a few weeks later. Which next-gen flagship GPU will win the overall performance crown? Countdown