Tag Archives: GDDR6

AMD Radeon RX 6700 XT : What You Need To Know!

The AMD Radeon RX 6700 XT is here, and it only costs $479… if you can find one!

Here is what you need to know about the new 1440p gaming card from AMD!

 

AMD Radeon RX 6700 XT : Official Launch Briefing!

AMD is targeting the Radeon RX 6700 XT at 1440p gamers, with its 40 enhanced Compute Units and 12 GB GDDR6 memory.

Let’s start with the official launch briefing by Scott Herkelman, Corporate Vice President & General Manager at the AMD Graphics Business Unit.

 

AMD Radeon RX 6700 XT : Key Features

The AMD Radeon RX 6000 series graphics cards are built on the new RDNA 2 architecture, which features an enhanced Compute Unit, a new visual pipeline with Ray Accelerators, and the new AMD Infinity Cache.

Recommended : AMD RDNA 2 Architecture : Tech Highlights!

AMD Smart Access Memory

This is an exclusive feature that is enabled when a Radeon RX 6000 series graphics card is paired with the Ryzen 5000 series processor and an X570 motherboard.

The Ryzen 5000 processor is given greater access to its GDDR6 graphics memory, providing up to 13% better performance when combined with the new Rage Mode one-click overclocking setting.

Recommended : AMD Smart Access Memory (PCIe Resizable BAR) Guide

AMD Infinity Cache

The AMD Radeon RX 6700 XT comes with a 96 MB Infinity Cache. Think of it as an L3 cache for the GPU.

AMD added it to dramatically increase memory bandwidth, which reducing memory latency and power consumption.

They claim it delivers up to 3.25X the bandwidth of the 256-bit GDDR6 memory, and up to 2.4X more effective bandwidth per watt.

Recommended : AMD Infinity Cache Explained : L3 Cache Comes To The GPU!

DirectX 12 Ultimate Support

They will support the next-generation games with greater realism through DirectX Raytracing (DXR) and Variable Rate Shading.

New Ray Accelerator

Every RDNA 2 computer unit has a new fixed-function Ray Accelerator engine to deliver real-time lighting, shadow and refection realism through DirectX Raytracing (DXR).

It can be paired with AMD FidelityFX to enable hybrid rendering, offering a combination of rasterised and ray-traced effects for a blend of better image quality and higher performance.

Variable Rate Shading (VRS)

Variable Rate Shading dynamically reduces the shading rate for areas of the frame that do not require a high level of visual quality, improving performance at little to no perceptible loss in image quality.

Microsoft DirectStorage Support

They will support the future DirectStorage API for faster load times, and high-quality textures.

 

AMD Radeon RX 6700 XT : Specifications

The AMD Radeon RX 6700 XT headlines the Radeon RX 6000 series :

  • Radeon RX 6900 XT : 80 CUs, 80 RAs, 320 TMUs, 128 ROPs, 16 GB DDR6
  • Radeon RX 6800 XT : 72 CUs, 72 RAs, 288 TMUs, 128 ROPs, 16 GB DDR6
  • Radeon RX 6800 : 60 CUs, 60 RAs, 240 TMUs, 96 ROPs, 16 GB DDR6
  • Radeon RX 6700 XT : 40 CUs, 40 RAs, 192 TMUs, 64 ROPs, 12 GB DDR6

Here is a table comparing their key specifications :

Specifications RX
6900 XT
RX
6800 XT
RX
6800
RX 6700
XT
Transistors 26.8 billion NA
Fab Process 7 nm
TGP 300 W 250 W 230 W
Compute Units 80 72 60 40
Ray Accelerators 80 72 60 40
Stream Processors 5120 4608 3840 2560
Game Clock 2015 MHz 2015 MHz 1815 MHz 2424 MHz
Boost Clock 2250 MHz 2250 MHz 2105 MHz 2581 MHz
TFLOPS 23.04 20.74 16.17 13.21
TMUs 320 288 240 192
Max. Texture Rate 720 GT/s 648 GT/s 505 GT/s 495 GT/s
ROPs 128 96 64
Max. Pixel Rate 288 GP/s 202 GP/s 165 GP/s
Infinity Cache 128 MB
Graphics
Memory
16 GB GDDR6 12 GB GDDR6
Bus Width 256-bit 192-bit
Bandwidth 512 GB/s 384 GB/s
PCIe Interface PCIe 4.0 x16
PCIe Power 2 x 8-pin

 

AMD Radeon RX 6700 XT : Performance

AMD shared these performance charts to demonstrate its gaming performance at the 1440p resolution, beating the NVIDIA GeForce RTX 3060 Ti.

 

AMD Radeon RX 6700 XT : Price + Availability

At launch, the AMD Radeon RX 6700 XT has a SEP (Suggested E-tail Price) of US$479, which is approximately £343 / A$614 / S$638 / RM1,940.

The AMD Radeon RX 6700 XT will be available from AMD board partners like ASRock, ASUS, GIGABYTE, MSI, PowerColor, Sapphire and XFX starting 18 March 2021.

 

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AMD RDNA 2 Architecture : Tech Highlights!

The success of the AMD Radeon RX 6000 series graphics cards is entirely due to the new RDNA 2 architecture.

Take a look at what’s new in the AMD RDNA 2 architecture!

 

AMD RDNA 2 Architecture : Tech Highlights!

The AMD Radeon RX 6000 series graphics cards are built on the new AMD RDNA 2 architecture, which features an enhanced Compute Unit, a new visual pipeline with Ray Accelerators, and the new AMD Infinity Cache.

AMD Infinity Cache

The AMD Infinity Cache is a new and very large 128 MB data cache. Think of it as an L3 cache for the GPU.

AMD added it to dramatically increase memory bandwidth, which reducing memory latency and power consumption.

They claim it delivers up to 3.25X the bandwidth of the 256-bit GDDR6 memory, and up to 2.4X more effective bandwidth per watt.

Recommended :AMD Infinity Cache Explained : L3 Cache Comes To The GPU!

New Ray Accelerator

RDNA 2 introduces a new Ray Accelerator – one for each Compute Unit.

The Ray Accelerator is a fixed-function ray tracing acceleration engine to deliver real-time lighting, shadow and reflection realism through DirectX Raytracing (DXR).

It will calculate the intersections of the rays with the scene geometry as represented in a Bounding Volume Hierarchy, sort them, and return the information to the shaders for further scene traversal or result shading.

Each Ray Accelerator can calculate up to 4 rays per box intersections or 1 ray per triangle intersection per clock cycle.

Variable Rate Shading

Variable rate shading allows the GPU to better use its limited processing capability by focusing on the most important parts of the frame.

AMD RDNA 2 has variable rate shading built throughout the entire pixel pipeline, with 1 x 1, 2 x 1, 1 x 2 and 2x 2 shading rates.

RDNA 2 also allows for very fine granularity – a different shading rate can to be selected for every 8 x 8 pixels region.

Hardware Decoding + Encoding

RDNA. 2 also introduces support for hardware 8K and AV1 decoding, allowing you to stream and watch video with virtually no performance impact.

Codecs Decode Encode
VP9 4K @ 90 fps
8K @ 24 fps
H.264 1080p @ 600 fps
4K @ 150 fps
1080p @ 360 fps
4K @ 90 fps
H.265 1080p @ 360 fps
4K @ 90 fps
8K @ 24 fps
1080p @ 360 fps
4K @ 60 fps
AV1 8K @ 30 fps

 

Recommended Reading

Go Back To > Computer | GamingHome

 

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If you like our work, you can help support us by visiting our sponsors, participating in the Tech ARP Forums, or even donating to our fund. Any help you can render is greatly appreciated!