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AMD Radeon RX 6800 XT

Graphics Processor
Navi 21
Cores
4608
TMUs
288
ROPs
64
Memory Size
16 GB
Memory Type
GDDR6
Bus Width
256 bit
This product is not released yet.
Data on this page may change in the future.
The Radeon RX 6800 XT will be a graphics card by AMD, that is expected to launch on October 28th, 2020. Built on the 7 nm process, and based on the Navi 21 graphics processor, in its Navi 21 XT variant, the card supports DirectX 12 Ultimate. This ensures that all modern games will run on Radeon RX 6800 XT. Additionally, the DirectX 12 Ultimate capability guarantees support for hardware-raytracing, variable-rate shading and more, in upcoming video games. The Navi 21 graphics processor is a large chip with a die area of 536 mm² and 23,000 million transistors. Unlike the fully unlocked Radeon RX 6900 XT, which uses the same GPU but has all 5120 shaders enabled, AMD has disabled some shading units on the Radeon RX 6800 XT to reach the product's target shader count. It features 4608 shading units, 288 texture mapping units, and 64 ROPs. AMD has paired 16 GB GDDR6 memory with the Radeon RX 6800 XT, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 1487 MHz, which can be boosted up to 2250 MHz, memory is running at 2000 MHz (16 Gbps effective).
Being a dual-slot card, the AMD Radeon RX 6800 XT draws power from 2x 8-pin power connectors, with power draw rated at 235 W maximum. Display outputs include: 1x HDMI, 2x DisplayPort, 1x USB Type-C. Radeon RX 6800 XT is connected to the rest of the system using a PCI-Express 4.0 x16 interface.

Graphics Processor

GPU Name
Navi 21
GPU Variant
Navi 21 XT
Architecture
RDNA 2.0
Foundry
TSMC
Process Size
7 nm
Transistors
23,000 million
Die Size
536 mm²

Graphics Card

Release Date
Oct 28th, 2020
Generation
Navi II
(RX 6000)
Production
Unreleased
Bus Interface
PCIe 4.0 x16

Clock Speeds

Base Clock
1487 MHz
Game Clock
2015 MHz
Boost Clock
2250 MHz
Memory Clock
2000 MHz
16 Gbps effective

Memory

Memory Size
16 GB
Memory Type
GDDR6
Memory Bus
256 bit
Bandwidth
512.0 GB/s

Render Config

Shading Units
4608
TMUs
288
ROPs
64
Compute Units
72
L2 Cache
8 MB

Theoretical Performance

Pixel Rate
144.0 GPixel/s
Texture Rate
648.0 GTexel/s
FP16 (half) performance
41.47 TFLOPS (2:1)
FP32 (float) performance
20.74 TFLOPS
FP64 (double) performance
1,296 GFLOPS (1:16)

Board Design

Slot Width
Dual-slot
TDP
235 W
Suggested PSU
550 W
Outputs
1x HDMI
2x DisplayPort
1x USB Type-C
Power Connectors
2x 8-pin

Graphics Features

DirectX
12 Ultimate (12_2)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.2
Shader Model
6.5

Card Notes

Based off of speculation/reddit and other sources online.

Placeholder

Navi 21 GPU Notes

Architecture Codename: Navi
Codename: Sienna Cichlid
Graphics/Compute: GFX10 (gfx1030)
Display Core Next: 3.0
Video Core Next: 3.0

Retail boards based on this design (1)

Name GPU Clock Boost Clock Memory Clock Other Changes
ASUS ROG STRIX RX 6800 XT GAMING OC 1527 MHz 2410 MHz 2000 MHz