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Radeon RX 7900 specifications, will compete with the RTX 40

The Radeon RX 7900 is finally here, we can officially talk about the new high-end graphics cards from AMD, the new video cards announced are the Radeon RX 7900 XTX and Radeon RX 7900 XT. Both GPUs arrive to take on NVIDIA’s GeForce RTX 40 series. Without surprises in between, these graphics cards mark the beginning of the RDNA 3 architecture at a 5 and 6 nm manufacturing process, and all with a chiplet design, thus being the biggest difference compared to NVIDIA GeForce RTX 40 linked to a monolithic design with a single chip.

Additionally, some of the new features include encoding and decoding of 8K 60 content from the AV1 codec, and the inclusion of DisplayPort 2.1 as a video output. After a brief introduction, it’s time to go into the depths to find out everything that the new generation of AMD graphics cards include.

Perhaps another rather interesting point is that they are not as big as their NVIDIA counterparts. AMD emphasized that you won’t need to buy another case, since its new video cards will occupy 2.5 expansion slots, and all this while maintaining the 8-pin PCI-Express connectors.

Chipplet design and rdna architecture 3

New generation of graphics and new generation of architecture and how it is used to drastically increase performance. AMD has introduced the first gaming graphics cards with a chiplet design. On the one hand we find the Compute Die with a manufacturing process at 5 nm, while the 6 Memory Cache Die chips are manufactured at 6 nm. Each Compute Die adds new compute units (RDNA 3), a new image engine, and a new Dual Media engine. Thanks to lithographic advances, AMD has managed to cram 165% more transistors per mm2 to drastically increase performance.

With regard to Artificial Intelligence, AI Accelerators are now capable of providing performance improvements of up to 2.7 times more than those of the previous generation. With regards to Ray Tracing, the 2nd Generation of RT Accelerators provide a performance improvement of up to 50% per CU.

The RDNA 3 architecture is slightly better than expected. If initially 50% extra performance was expected per watt consumed, this improvement is now 53%. Added to this is an increase in the frequencies at which the chip operates by up to 18%.

Along with the architecture, a new generation (2nd Gen) Infinity Cache memory is added that increases the bandwidth by 2.7 times. This translates into reaching a bandwidth of 5.7 TB/s.

AMD Radeon RX 7900 XTX and Radeon RX 7900 XT Specifications

Let’s get down to what matters, the specifications, with an AMD Radeon RX 7900 XT it makes use of a Navi 31 XT graphics chip that houses a total of 10,752 Stream Processors at a frequency of 2.00 GHz. This chip has 80 MB of Infinity Cache, and is coupled with a configuration of 20 GB of 20 Gbps GDDR6 VRAM memory that, together with a 320-bit memory interface, achieves a bandwidth of 800 GB / s. Its energy consumption is 300W.

Its big brother, the Radeon RX 7900 XTX, uses a Navi 31 XTX chip with 12,288 Stream Processors at a frequency of 2.30 GHz, that is, 1,536 extra cores. This model has 96 MB of Infinity Cache and its 24 GB of memory are linked to a 384-bit interface to increase its bandwidth up to 960 GB / s.

With a specs increase so does the energy consumption, so we are talking about 355W of consumption generating 61 TFLOPs of power. In terms of performance, this translates up to a 70% performance improvement over the Radeon RX 6950 XT in 4K gaming. When Ray Tracing kicks in, the performance improvement will be up to 60%.

Both video cards make use of a Displayport 2.1 interface to allow the use of 4K monitors supporting up to 480 Hz, or 8K monitors up to 165 Hz. These are the first cards on the market to offer this video interface. With streamers in mind, AMD will also enable hardware AV1 video encoding and decoding in OBS Studio. It must be remembered that the GeForce RTX 40 also received this via an update a few days ago.

Release date and price of the AMD Radeon RX 7900

To cap off  we’ll talk about pricing, and we’ll see how the new Radeon does in our new economy as however powerful a card really is, pricing can really affect its sales targets. With this in mind, as you could see, these video cards go on sale at a starting price of $899 for RADEON RX 7900 XT, with a launch date for December 13, while RADEON RX 7900 XTX will go for $999 on launch day.

These prices are very aggressive seeing what Nvidia has done with the GeForce RTX 40, although we will still have to wait to see a performance comparison as the presentation failed to show any kind of benchmark or comparison.

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Radeon RX 7900 XT
Details

Released

Nov 3rd, 2022

Memory

24 GB, GDDR6, 384 bit

GPU Clock

2500 MHz

Memory Clock

2250 MHz

Shaders

12288 / 768 / 256







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