Home Hardware Radeon RX 6900 XT Introduced! Here is the Price and Features

Radeon RX 6900 XT Introduced! Here is the Price and Features

by elitelaunch

We look at the details of the RX 6900 XT graphics card, which confronts NVIDIA’s Ampere architecture flagship RTX 3090.

AMD placed against the RTX 3080 RX 6800 series graphics cards we had looked closely. The red team detonated the bomb at the end of the RDNA 2 and RX 6000 presentation and officially announced the RX 6900 XT ‘Big Navi’ graphics card, which has long been the language.

Radeon RX 6900 XT

The Radeon RX 6900 XT will appear as the flagship of the series and compete with the RTX 3090.

Key Points of the AMD RX 6000 Series

  • Efficiency and performance gains with the renewed RDNA 2 graphics architecture.
  • Up to 5120 shader cores in the RX 6900 XT and up to 3840 in the RX 6800.
  • High frequency speeds of 2.1-2.25 GHz.
  • All three models have 16 GB of GDDR6 memory. In addition, 128 MB Infinity Cache memory technology that significantly increases bandwidth.
  • One Beam Accelerator per CU and 10x acceleration for RT calculations.
  • Pricing is $ 999 for the 6900 XT, $ 649 for the 6800 XT and $ 579 for the 6800.
  • Upcoming FidelityFX enhancements to offer a DLSS alternative.
  • Additional performance gains in systems with AMD Smart Access Memory and Ryzen 5000 and RX 6000 series products.
  • One-click overclocking with Rage.

AMD RDNA 2 Architecture

The AMD RDNA 2 GPU architecture provides a massive 54% performance increase per watt compared to the RDNA 1 GPU architecture based on the same TSMC 7nm process node. The main improvements are based on the new Infinity Cache memory design, new architectural optimizations and frequency increases with an optimized architectural approach.

Radeon RX 6900 XT

With RDNA 2 DirectX 12 Ultimate and Microsoft DirectStorage full support was offered for Thus, it is possible to benefit from features such as Ray Tracing, Variable Rate Shading, Mesh Shaders and Sampler Feedback in games.

Radeon RX 6900 XT

AMD Infinity Cache Cache

AMD Infinity Cache is a high-performance and newly developed cache technology suitable for 4K and 1440p games. The memory structure that comes with a 128 MB capacity in the RX 6000 series reduces power consumption by around 10% and minimizes latency. AMD also stated that the Infinity Cache design increased bandwidth by 117%.

Radeon RX 6900 XT

128 MB Infinity Cache memory technology is used in all of the new graphics cards and we can define this as a large capacity cache. AMD hasn’t gone into details about this technology. However, the main purpose is to better manage memory traffic and provide a fast memory bandwidth. This is directly reflected in the games as high performance.

AMD Smart Access Memory

This new approach of the red team provides special advantages to the user when Ryzen 5000 series processors and Radeon RX 6000 series graphics cards are used together.

Radeon RX 6900 XT

With the Smart Access Memory feature, AMD Ryzen processors can provide faster access to high speed GDDR6 memory. In this context, the CPU’s data processing is accelerated, and when combined with the new Rage mode, a performance increase of up to 13% can be achieved.

Radeon RX 6900 XT

Rage: One Click Overclock

The mod, which AMD calls Rage, comes as part of Radeon Software and recognizes the usual one-click overclocking.

Radeon RX 6900 XT

AMD Radeon RX 6900 XT

The AMD Radeon RX 6900 XT with RDNA 2 architecture offers an incredible improvement in performance per watt compared to AMD’s latest generation RDNA 1 graphics architecture and faces high-end Ampere chips in 4K resolution.

Radeon RX 6900 XT

The flagship graphics card has 5,120 Stream Processors, equivalent to 80 Compute Units when using a full Navi 21 silicon. In the sub-model RX 6800 XT, 8 Compute Units are disabled. In addition, let’s state that 80 Ray Accelerators are used for ray tracing support. That is, one Beam Accelerator per CU.

The card is also supported on a 256 bit bus with 16GB of GDDR6 memory and we’re looking at 512GB / s total bandwidth. In addition to the standard memory, the Radeon RX 6900 XT graphics card will house 128 MB of Infinity Cache memory in the GPU die. Thus, the bandwidth could theoretically be up to 1.664 TB / s.

Radeon RX 6900 XT

Finally, let’s note that the reference design can reach clock speeds of 2015 MHz and boost clocks up to 2250 MHz.

So what will the Radeon RX 6900 XT cost? AMD has adopted a good pricing policy for the flagship as well as the RX 6800 models. The list price of the RX 6900 XT is $ 999 and is $ 500 behind its rival.

There are also rumors that the RX 6900 XT will be available in a much more limited supply than other cards and that AMD will sell these cards directly to consumers. The officially shared retail date is December 8th.

Radeon RX 6900 and RTX 3090 Comparison

First of all, let’s say that the tests were done with Rage Mode (overclocking) and Smart Access Memory turned on. These factors potentially offer between 6% and 13% higher performance.

The tests are made in 4K resolution and include a total of 10 games. When we look at the comparisons with the RTX 3090, we see that the AMD GPU is ahead in games such as Battlefield 5, Borderlands 3, Call of Duty: Modern Warfare, Forza Horizon 4, Gears of War 5.

In games such as Tom Clancy’s The Division 2, Doom Eternal, Resident Evil 3 and Wolfenstein: Young Blood, the Ampere graphics card is ahead.

Radeon RX 6900 XT

The RTX 3090’s GDDR6X memory is 24 GB, while the RX 6900 XT has 16 GB of memory. However, let’s easily say that this amount of memory will be quite enough.

AMD Ultimate Latency Reduction

AMD is also making use of NVIDIA’s new technology developed against Reflex technology. This technology is especially important for competitive games.

In the presentation, the tests on Fortnite were mentioned and it was stated that the latency decreased from 63ms to 40ms with all technologies.

Radeon RX 6800, RX 6800 XT and RX 6900 XTAMD RX 6000 Series Graphics Card Features

Model AMD Radeon RX 6900 XT AMD Radeon RX 6800 XT AMD Radeon RX 6800
Power Connection 2 × 8 pin 2 × 8 pin 2 × 8 pin
Computing Unit 80 72 60
Boost Frequency 2250 MHz 2250 MHz 2105 MHz
Game Mode Frequency 2015 MHz 2015 MHz 1815 MHz
Beam Accelerator
(Ray Tracing)
80 72 60
FP16 Performance 46.08 TFLOPs 41.47 TFLOPs 32.33 TFLOPs
FP32 Performance 23.04 TFLOPs 20.74 TFLOPs 16.17 TFLOPs
ROPS 128 128 96
Stream Processor 5120 4608 3840
Texture Units 320 288 240
Transistor Value 26.8 billion 26.8 billion 26.8 billion
Card Power 300W 300W 250W
Recommended PSU 850W 750W 650W
Infinity Cache 128 MB 128 MB 128 MB
Memory Speed 16 Gbps 16 Gbps 16 Gbps
Memory 16 GB
GDDR6
16 GB
GDDR6
16 GB
GDDR6
Memory Interface 256-bit 256-bit 256-bit
Memory Bandwidth 512 GB / s 512 GB / s 512 GB / s
HDMI 4K Support Yeah Yeah Yeah
4K H264 Decoding Yeah Yeah Yeah
4K H264 Encoding Yeah Yeah Yeah
H265 / HEVC Analysis Yeah Yeah Yeah
H265 / HEVC Coding Yeah Yeah Yeah
AV1 Decoding Yeah Yeah Yeah

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