AMD has quietly added some interesting codenames to its ROCm hardware support list. The biggest surprise is the appearance of "RDNA 4" and "Navi 44" codenames, hinting at a potential successor to the current RDNA 3 GPU architecture powering AMD's Radeon RX 7000 series graphics cards. The upcoming Radeon RX 8000 series could see Navi 44 SKU with a codename "gfx1200". While details are scarce, the inclusion of RDNA 4 and Navi 44 in the ROCm list suggests AMD is working on a new GPU microarchitecture that could bring significant performance and efficiency gains. While RDNA 4 may be destined for future Radeon gaming GPUs, in the data center GPU compute market, AMD is preparing a CDNA 4 based successors to the MI300 series. However, it appears that we haven't seen all the MI300 variants first. Equally intriguing is the "MI300X1" codename, which appears to reference an upcoming AI-focused accelerator from AMD.

While we wait for more information, we can't decipher whether the Navi 44 GPU SKU is for the high-end or low-end segment. If previous generations are for reference, then the Navi 44 SKU would target the low end of the GPU performance spectrum. The previous generation RDNA 3 had Navi 33 as an entry-level model, whereas the RDNA 2 had a Navi 24 SKU for entry-level GPUs. We have reported on RDNA 4 merely being a "bug correction" generation to fix the perf/Watt curve and offer better efficiency overall. What happens finally, we have to wait and see. AMD could announce more details in its upcoming Computex keynote.

Sapphire has officially boarded the white PCB design train, a trend most popular within China's PC hardware market—the Hong Kong-based graphics card specialist is teasing its oddly named "Power Elves" custom cooling solution. They have decided to pair this new look with non-cutting edge silicon, namely AMD's Radeon RX 6500 XT GPU. The budget Navi 24 XT (RDNA 2) card looks to be cooled by a single fan and heatsink array housed within a shroud approximating a Mini-ITX form factor.

Sapphire appears to using its "Angular Velocity Fan Blade," as seen on its Radeon RX 7000-series PULSE and NITRO custom models, so it is somewhat odd that we are not seeing a new-ish RX 7600 GPU in fresh Polar Elves/all-white livery. Since the company is merely teasing this upcoming 4 GB model (at the time of writing) we can assume that it will be served by the normal single 8-pin power connector, and its name assignment suggests a factory overclock will be applied as standard.

Here are the final specifications of the Radeon RX 7600 RDNA3 graphics card, bound for launch later this month. The specs list springs up some surprises. To begin with, while the GPU at the heart of the RX 7600 is based on the latest RDNA3 graphics architecture, it is built on the older 6 nm (DUV) silicon fabrication process—the same one on which the previous "Navi 24" was based. The silicon has a transistor count of 13.3 billion, about 2 billion more than the 7 nm "Navi 23" Powering the RX 6600 series, but a die-size of 204 mm². The GPU has a PCI-Express 4.0 x8 host interface, and a 128-bit GDDR6 memory interface. As the RX 7600, it has a TBP (total board power) value of 165 W, which is over 30 W more than the RX 6600.

At this point, it's not known whether the RX 7600 maxes out the silicon it is based on. It gets 32 RDNA3 compute units (CU), which work out to 2,048 stream processors (with the same dual-issue instruction rate feature as the RX 7900 series); 32 Ray Accelerators, and 64 AI Accelerators. The GPU has 128 TMUs, and 64 ROPs. The GPU has 32 MB of second-generation Infinity Cache memory. The 8 GB of GDDR6 memory ticks at 18 Gbps, which over the 128-bit memory bus works out to 288 GB/s of memory bandwidth. AMD claims that when coupled with the on-die cache, the "effective bandwidth" is 476.9 GB/s. NVIDIA is putting out similar "effective" figures for its RTX 4060 series, so this could become a norm. The RX 7600 comes with a game frequency of 2250 MHz, and 2625 MHz boost. AMD is making 550 W as its PSU recommendation, compared to the 450 W it did for the RX 6600. The company considers the RX 7600 to be the logical successor of the RX 6600 (and neither the RX 6600 XT nor the RX 6650 XT).

A curious OEM-only AMD Radeon RX 6300 desktop graphics card surfaced on Chinese peer-to-peer marketplaces. The card is a true single-slot, half-height (low-profile) graphics card, with an active fan-heatsink based cooling; and two display outputs—a pair of HDMI 2.1 ports. The card draws all its power from the PCIe slot, and features a PCI-Express 4.0 x4 host interface. The RX 6300 is based on the same 6 nm "Navi 24" silicon as the RX 6400 and RX 6500 XT, although it is rumored to be heavily cut down. The mobile RX 6300M has 768 out of 1,024 stream processors enabled, so one can expect a similar cut-down for the RX 6300. Perhaps the most interesting piece of specifications is the memory—2 GB GDDR6. It's possible that the card has a puny 32-bit memory interface, half that of the 64-bit interface the "Navi 24" is capable of. The person selling it has it listed at just ¥399 RMB (around $60).

It looks like launch of the entry-level Radeon RX 6400 desktop graphics card is just around the corner, with pictures of custom-design cards surfacing. The RX 6400 Challenger by ASRock, pictured below, features a simple aluminium monoblock fan-heatsink, and lacks any power connectors, as the 6 nm "Navi 24" silicon can make do with under 75 W TGP. The RX 6400 is armed with 768 stream processors across 12 RDNA2 compute units, and a 64-bit wide GDDR6 memory interface, holding 4 GB of memory. The SKU is expected to formally launch on April 20.

AMD's final refresh of the RDNA2 graphics architecture, the Radeon RX 6x50 series, could debut in June or July 2022, according to Greymon55, a reliable source with GPU leaks. The final refresh of RDNA2 could see AMD use faster 18 Gbps GDDR6 memory across the board, and eke out higher engine clocks on existing silicon IP. At this point it's not known if these new chips will be built on the same 7 nm process, or are an optical shrink to 6 nm (TSMC N6). Such a shrink to a node that offers 18% higher transistor density, would have significant payoffs with clock-speed headroom. AMD's RDNA3-based 5 nm GPUs could debut only toward the end of the year.

In related news, AMD is preparing to launch another entry-level SKU within the RX 6000 series; the Radeon RX 6500 (non-XT). Based on the same 6 nm Navi 24 silicon as the RX 6500 XT, this SKU could have a core-configuration that's in-between the RX 6500 XT and the RX 6400, in featuring 768 stream processors across 12 compute units; and 4 GB of GDDR6 memory, which is similar to the RX 6400, but with higher engine clocks. The RX 6500 is targeting a $150 (MSRP) price-point.

AMD announced the Radeon RX 6500 XT and RX 6400 at CES just a few days ago. These new entry-level cards debut the company's first 6 nm GPU, codenamed "Navi 24"—the smallest chip from the RDNA2 family. Navi 24 is barely the size of a motherboard chipset, roughly 100 mm² in die size. The chip only features a 64-bit wide GDDR6 memory interface, needing just two memory chips to achieve 4 GB of memory size. While AMD has been fairly quiet about it, people quickly found out that the Navi 24 GPU only uses a PCI-Express 4.0 x4 host interface. While the physical connector is x16, there is only enough signal traces for x4.Even the most updated 2.43.0 public version of GPU-Z misreports the bus interface as PCIe x16 4.0 though, which will certainly lead to confusion in the reviewer community who trust GPU-Z to report the correct specs and speeds for their articles. Maybe that's the reason why AMD has decided to not send us a sample this time—a first in 15 years.

Update Jan 20th: GPU-Z 2.44.0 has been released, which properly reports the PCIe bus configuration of RX 6500 XT.

AMD is preparing a round of updates to its desktop Radeon RX 6000 series in the wake of RTX 30-series models by NVIDIA, according to Greymon55, a reliable source with GPU rumors. The company could be leveraging faster 18 Gbps GDDR6 memory chips for the task. This wouldn't be the first RX 6000 series products with 18 Gbps memory, as the liquid-cooled MBA (made-by-AMD) RX 6900 XT that's exclusive to OEMs, already comes with 18 Gbps memory clocks.

Mass-production of JEDEC-standard GDDR6 memory chips with data-rates as high as 20 Gbps and 24 Gbps by Samsung is expected to get underway later this year. The company is already sampling these chips, and it's likely that they may feature in the next round of product-stack updates by AMD and NVIDIA. In the run up to its next-gen RDNA3 graphics architecture, AMD is rumored to be working on a refresh of RDNA2 on the new TSMC N6 (6 nm) foundry node that it already leverages for the entry-level "Navi 24" ASIC. This is expected to open up headroom to dial up engine clocks, and possibly support faster memory. As for this latest refresh with 18 Gbps memory, if AMD's naming convention for its mobile RX 6850M is anything to go by, the new SKUs could feature a similar "xx50" model numbering.

AMD's first GPU built on the N6 (6 nm) silicon fabrication process isn't some big RX 7000 series behemoth, but the smallest chip from the Navi 2x GPU family, codenamed Navi 24. Based on the same RDNA2 graphics architecture as the rest of the RX 6000 series, the Navi 24 physically packs 1,024 stream processors across 16 compute units (8 WGPs), and on the RX 6500 XT, reportedly comes with 4 GB of memory across a 64-bit wide memory bus. The chip also packs a tiny 16 MB Infinity Cache. VideoCardz scored the first renders of the upcoming Radeon RX 6500 XT and RX 6400, which are based on the Navi 24. The RX 6500 XT features a full-height, 2-slot board design that uses a simple aluminium monoblock fan-heatsink. The RX 6400, on the other hand, is not just low-profile (half-height), but also single-slot.

Update Dec 28th: Unless we're mistaken, the SMDs near the PCIe interface in those renders seem to suggest that the GPU features a PCIe x4 interface. This should offer sufficient bandwidth for a GPU in this segment, and should help lower the pin-count of the GPU, as well as board costs.

AMD is preparing to wrap up its Radeon RX 6000 series desktop discrete graphics card family with two new SKUs, the RX 6500 XT and the RX 6400. The two debut the company's smallest piece of silicon based on the RDNA2 graphics architecture, codenamed "Navi 24," to the desktop space. The RX 6500 XT maxes out this silicon, enabling all 16 compute units physically present, working out to 1,024 stream processors. The RX 6400 is significantly cut down, featuring 12 out of 16 CUs, which means 768 stream processors.

The Navi 24 silicon features a 64-bit wide GDDR6 memory interface, which is paired with 4 GB of discrete memory on both SKUs. This memory operates at 14 Gbps data-rate, which works out to 112 GB/s memory bandwidth. Interestingly, the Infinity Cache makes a comeback, in the form of a tiny 16 MB on-die cache that cushions the memory sub-system. The RX 6500 XT could have just enough muscle for e-sports gaming at 1080p, while the RX 6400 seems more like a card you'd buy just because your processor lacks integrated graphics (eg: if you're using a Ryzen 5000X processor and just need a graphics solution that meets the latest display I/O and media-acceleration standards). At this point we don't know if the Navi 24 is DirectX 12 Ultimate compliant, i.e., featuring Ray Accelerators on its compute units. Both cards are expected to launch in Q1, 2022.

The 7 nm "Navi 24" silicon will very likely be the smallest discrete GPU based on the RDNA2 graphics architecture. The chip surfaced in technical documentation under the codename "Beige Goby." AMD uses such internal codenames to track sources of leaks. No specs of the "Navi 24" are known yet, but it could be significantly smaller than the "Navi 23" that powers the Radeon RX 6600 series and possibly the RX 6500 series, reportedly packing up to 2,048 stream processors. The "Navi 24" chip could also help AMD compete against NVIDIA and an emerging Intel in entry-level discrete GPUs for notebooks.

AMD has just announced its Navi 22 RDNA 2 devices, spanning the middle-end gaming sector. The Radeon RX 6700 XT, which is the latest addition to the 6000 series of Radeon graphics cards, is carrying the Navi 22 chip inside it. However, AMD GPUs need to satisfy another sector in addition to the desktop market and that is the laptop/mobile market. With the past 5000 series of laptop GPUs, AMD has made a bit of a disappointing launch. Given the availability of the first-generation RDNA GPUs in mobile devices, many gamers were unable to find 5000 series Radeon GPUs in laptops, as it was rarely a choice. MSI and Dell have carried a few models with the Radeon RX 5500M and RX 5600M, and the highest-end Radeon RX 5700M availability was limited to Dell Alienware Area-51m R2 laptop.

During the announcement of Radeon RX 6700 XT, Scott Herkleman (CVP & GM AMD Radeon) has announced that AMD is preparing the launch of the next-generation RDNA 2 based RX 6000 series of graphics cards for mobile/laptop devices. While there should be a range of models based on Navi 22, Navi 23, and Navi 24, the availability is unknown for now. The only information we have so far is that it is "coming soon". The exact configurations of these chips remain a mystery until the launch happens, so we have to wait to find out more.