AMD has finally unveiled its long-awaited next-generation RDNA 2 graphics cards to compete against NVIDIA’s latest RTX 30 series GPUs. The new graphics cards which include the Radeon RX 6800, Radeon RX 6800 XT, and the Radeon RX 6900 XT is aimed to take on the NVIDIA RTX 3080 and the RTX 3090 GPUs.
The latest AMD RNDA 2 gaming architecture is designed to deliver outstanding performance at improved efficiency. The company claims that the 7nm RDNA 2 architecture can deliver over 54% performance uplift as compared to the previous generation RDNA 1 architecture. The graphics cards announced are the top-of-the-line models meant for high-resolution gaming.
Apart from having high-performance compute units, AMD introduces the Infinity Cache that brings performance improvements at lower power consumption. AMD showcased charts claiming that the Infinity Cache combined with a 256-bit 16Gbps GDDR6 memory delivers 2.17 times the memory bandwidth at 0.9 times lesser power. While a normal 256-bit 16Gbps GDDR6 has a throughput of 512GB/s bandwidth, and a 384-bit 19.5 Gbps GDDR6X delivers about 936GB/s, a 128MB Infinity Cache delivers up to 1664 GB/s bandwidth when combined with the 256-bit memory.
AMD also mentions that the new RNDA 2 features hardware-accelerated ray tracing, something that NVIDIA has been enjoying since the introduction of the RTX 20 series. The new ray-tracing technology is known as Ray Accelerator (or known as RA). AMD states that there will be one Ray Accelerator per the Compute Unit of the GPU. While NVIDIA had previously shown improvements for ray-tracing performance for its latest RTX 30 cards, AMD did not showcase any statistics on how the new cards would perform with ray tracing turned on.
That said, the new RDNA 2 brings full support for Direct X 12 Ultimate technologies such as DirectX Raytracing, Variable Rate Shading, Mesh Shaders, Sampler Feedback, and more. The Variable Rate Shading (VRS) helps to enhance the performance of the RDNA 2 cards, allowing games to smartly prioritize the rendering performance for different game scenes. Additionally, the AMD Fidelity Variable Shading brings support for VRS for maximum performance, without sacrificing the image quality of the games.
Let’s get into the specifications. The AMD Radeon RX 6800 XT is a high-end card designed for 4K gaming to deliver performances above 60fps. The graphics card features the RDNA 2 based Navi 21 XT GPU, packing 72 Compute Units, and 72 Ray Accelerators. The GPU chip also packs 4608 stream processors. The chip is clocked at 2015 MHz speeds, along with its boost clocks racing to 2250 MHz. The RX 6800 XT has a compute performance of 20.4 TFLOPS. The GPU also packs 16GB of GDDR6 RAM with 128MB of Infinity Cache. The memory interface, as mentioned before is 256-bit. On the contrary, the NVIDIA RTX 3080 packs a compute performance of 30 TFLOPS and features 10GB GDDR6X RAM.
AMD showcased the 4K performance stats of the Radeon RX 6800 XT graphics card and pitted it against the NVIDIA RTX 3080 graphics card. And from the looks of it, the new RX 6800 XT keeps up with the NVIDIA card. AMD did not showcase the framerate numbers for the NVIDIA RTX 3080 but from we see, the RX 6800 XT is able to perform up to 113fps on average for Battlefield V, 63fps on Borderlands, Call of Duty: Modern Warfare at 91fps, 74fps with Division 2, 138fps with DOOM Eternal, 88fps with Shadow of the Tomb Raider, and more. All the games were tested at the highest settings.
AMD also unveiled the performance of the RX 6800 XT for 1440P gaming. The card waiiXT. The AMD Radeon RX 6800 XT has a TDP of 300W, while the RTX 3080 has a TDP of 320W.
AMD also unveiled the Radeon RX 6800 graphics card that features 60 Compute Units and 60 Ray Accelerators. The GPU has a clock speed of 1815 MHz speeds and feature boost clocks up to 2105 MHz speeds. While the 16GB GDDR6 is the same, the RX 6800 graphics cards deliver a compute performance of 16.17 TFLOPS. AMD pitted the RX 6800 card against the previous generation NVIDIA RTX 2080 Ti card for both 4K and 1440p gaming, and these scores were done without the Rage mode turned on. The TDP of the RX 6800 is 250W.
AMD had also unveiled several other technologies such as the AMD Latency Reduction, where when combining AMD FreeSync and the AMD Radeon Anti-Lag and Radeon Boost, you get a lower latency gaming. AMD showcased using Fornite as an example when played at 4K resolution, can cause a latency of 63ms. But when combining AMD FreeSync and AMD Radeon Anti-Lag, the latency reduces by 8ms. Additionally, combining FreeSync with AMD Radeon Boost reduces the latency further by 23ms. 
While AMD unveiled the Radeon RX 6800 XT and the RX 6800 graphics cards to compete against the NVIDIA RTX 3080 and RTX 3070 GPUs, the company also unveiled their fastest Radeon gaming GPU ever made and is called the Radeon RX 6900 XT. The Navi 21 XTX GPU that powers the RX 6900 XT, has a compute performance of 23.04 TFLOPS, with its default clock speeds set at 2015 MHz, while the boost frequency shoots up to 2250 MHz. The card features a total of 80 Compute Units and 80 Ray Accelerators. The card also features a total of 5120 stream processors. It’s impressive that the RX 6900 XT has a TDP of 300W. The RX 6900 XT also features 128MB of Infinity Cache that works with the 256-bit 16GB GDDR6 RAM.
AMD also unveiled how the Radeon RX 6900 XT performs against the mighty NVIDIA RTX 3090 GPU for 4K gaming and it performs slightly better than most of the games shown on the scorecard. The Radeon RX 6900 XT can run Battlefield V at 122fps, Call of Duty: Modern Warfare at 102fps, Division 2 at 81fps, DOOM Eternal at 150fps, 96fps for Shadow of the Tomb Raider, and more. However, AMD did not specify anything about how the RTX 6900 XT runs for 8K gaming, since NVIDIA claims big about its BFGPU. That said, 8K gaming is far from perfect as we know so it’s obvious AMD isn’t currently targeting 8K gaming. AMD also claims that while RDNA 2 architecture delivers over 54% uplift in performance, the 6900 XT pushes it further to 65% performance-per-watt when compared to RDNA 1.
The AMD Radeon RX 6800 XT and the Radeon RX 6800 graphics card are priced at 649 dollars (Approx. 2500 AED ) and 579 dollars (Approx. 2200 AED), respectively. As compared to NVIDIA, the RTX 3080 GPU is priced at 699 dollars (Approx. 2567 AED). The faster AMD Radeon RX 6900 XT is priced at 999 dollars (Approx. 3800 AED). Comparing to the NVIDIA counterpart, the RTX 3090 costs a whopping 1400 dollars (Approx. 5142 AED). All these prices are for the reference and Founders Edition cards, however, the cards from AIB would differ otherwise.
