Home Hardware Radeon RX 6800 and RX 6800 XT Introduced! Here are Prices and Features

Radeon RX 6800 and RX 6800 XT Introduced! Here are Prices and Features

by elitelaunch
AMD Radeon RX 6800 - RX 6800 XT Navi 21 RDNA 2

We take a detailed look at the RX 6800 series based on AMD’s RDNA 2 architecture.

AMD has finally launched the next generation RX 6000 series graphics cards after long-running leaks. These graphics cards are built on the company’s next-generation enhanced RDNA 2 graphics architecture. We’ve heard the name Big Navi many times so far, and we have three new models: RX 6800, RX 6800 XT and RX 6900 XT.

Radeon RX 6800 and RX 6800 XT

In fact, we are not unfamiliar with the names of the new cards, and we have shared leaks using these names many times before. But let’s not go without mentioning the ‘segment’ issue. As it is known, NVIDIA was unrivaled when it came to high-end GPUs. The red team seems to break this perception with its new chips. Moreover, let’s stop getting close to NVIDIA’s Ampere GPUs, they even got ahead in some cases. Let’s take a look at the details.

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 6800 and RX 6800 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 6800 and RX 6800 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 6800 and RX 6800 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. But the main goal 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 6800 and RX 6800 XT

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

Radeon RX 6800 and RX 6800 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 6800 and RX 6800 XT

AMD Radeon RX 6800 XT

Let’s start with the RX 6800 XT first. This graphics card will be a direct competitor of the RTX 3080, which has a list price of $ 700.

The RX 6800 XT contains 72 Compute Units, each with 64 shader cores. The game clock of the GPU is at 2015 MHz, while the maximum boost clock is exactly 2.25 GHz. When we look at raw performance, we are talking about a total of 20.7 TFLOPS of power.

Radeon RX 6800 and RX 6800 XT

Memory with 256-bit memory interface runs at 14 Gbps. AMD says the new Infinity Cache technology reduces power usage by 10% and increases bandwidth by 117%. If we assume that the values ​​are exactly right, it means that the average bandwidth is equivalent to 972 GBps. This value is higher than the RTX 3080’s memory. To make a bracket here, let’s underline that there is only 512 GB / s theoretical bandwidth for GDDR6 memory.

There are two other important issues. The RX 6800 XT has 6 GB more memory than the RTX 3080. As you know, the NVIDIA RTX 3080 had 10 GB of GDDR6X memory, and the new RX 6000 cards all have 16 GB of memory. This memory capacity may not work in all scenarios, but considering the cards are made for 4K gaming, it may become important in some games.

Regarding the power consumption, AMD lists the total power consumption (Total Board Power) of the new card as 300W. RTX 3080 Founders Edition was at the level of 320W. One of the issues that the red team emphasized most was power consumption and we can say that they have accomplished important things. Because TSMC’s mature production technology such as 7nm FinFET is used. Finally, let’s note that the RX 6800 XT will debut with a list price of $ 659.

Radeon RX 6800 XT Performance vs RTX 3080

According to the figures given by AMD, the new 6800 XT does not only compete with its competitor and in some cases comes ahead. AMD probably should have made a selection when choosing the games, and it’s worth noting that none of these criteria include ray tracing. Tests were done in 4K and 2K resolution. You can see the games included in the tests from the table.

Radeon RX 6800 and RX 6800 XT

The RDNA 2-based Big Navi GPU sometimes beat in 4K gaming tests, while the RTX 3080 sometimes showed the same performance. AMD also added a few games ahead of the RTX 3080 to the table.

Radeon RX 6800 and RX 6800 XTIf we come to 2K (1440p) gaming tests, we can say that the RX 6800 XT has more superiority. Only 2 games show here where the RTX 3080 excels, and overall the RX 6800 XT is ahead.

Of course, we will see special design graphics cards in the coming days. These cards will be overclocked from the factory and will come at slightly higher prices.

AMD Radeon RX 6800

If we say that the red team made not one but two competitors in front of the RTX 3080, it would be appropriate. The new RX 6800 is more performance than the RTX 3070 and the previous flagship RTX 2080 Ti if we look at the tables.

Radeon RX 6800 and RX 6800 XT

This GPU, which comes with a more affordable price tag, was announced with a $ 70 cheaper and $ 579 list price. The Radeon RX 6800 features 3840 shader cores equivalent to 60 Compute Units when using a slightly cropped Navi 21 GPU. In addition, the clock speeds are also decreasing. The GPU’s game clock is 1815 MHz and the boost clock is 2105 MHz.

However, as we just mentioned, 128 MB of Infinity Cache and 16 GB of GDDR6 memory come together with the GPU. At the end of all these decreases, the total power consumption (TBP) has decreased by up to 250W. Let’s add that this graphics card has a list price of $ 579.

Radeon RX 6800 Performance vs RTX 2080 Ti

As for the benchmark, AMD doesn’t have the RTX 3070 for testing. However, comparisons are made with the RTX 2080 Ti, which is almost equivalent to this card. Here are AMD’s 2K and 4K gaming tests:

Radeon RX 6800 and RX 6800 XT

Judging by the tests conducted in 10 different games, the RX 6800 is overwhelmingly superior to the RTX 2080 Ti and thus well above the RTX 3070. The RTX 2080 Ti was only able to approach the new GPU in Wolfenstein Youngblood.

Radeon RX 6800 and RX 6800 XT

If you remember, the RTX 3070 was launched with a starting price of $ 500. The RX 6800, on the other hand, costs $ 79 more, and has the upper hand in many aspects: twice the memory, more efficient bandwidth and superior performance. At least according to AMD’s data ..

Both products belonging to the RX 6000 series will begin to take place in retailers as of November 18.

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 and RX 6800 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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