AMD Radeon RX 6900 XT vs AMD Radeon Vega 8 1950MHz Full Specs

Summary

5,120 Shaders 2.25GHz	512 Shaders 1.95GHz
16GB GDDR6512GB/s placeholder	Shared Memory68.3GB/s LPDDR4X·DDR4
Peak·FP32·FP16 23.04 TFLOPS	Peak·FP32·FP16 2 TFLOPS
Form Factor PCIe Card	Form Factor iGPU
TDP 300W	TDP Shared
Power Connectors 2x 8-Pin	Power Connectors -

Highlights

Peak OPS

Peak OPS FP32 FP16 FP64 Memory Bandwidth TDP

Radeon RX 6900 XT46.08 TFLOPSFP16

x11.54

Radeon Vega 8 1950MHz3.99 TFLOPSFP16

x1

Show Top Score

Theoretical Performance

Clock Speed2250MHz UC·Base·Boost·OC	Clock Speed1950MHz UC·Base·Boost·OC
Peak OPS 46.08 TFLOPSFP16	Peak OPS 3.99 TFLOPSFP16
FP32 23.04 TFLOPS	FP32 2 TFLOPS
FP64 1.44 TFLOPS	FP64 124.8 GFLOPS
Pixel Rate 288 GPixel/s	Pixel Rate 15.6 GPixel/s
Texture Rate 720 GTexel/s	Texture Rate 62.4 GTexel/s

Core Config

Shaders 5,120 Shaders	Shaders 512 Shaders
TMUs 320 TMUs	TMUs 32 TMUs
ROPs 128 ROPs	ROPs 8 ROPs
RT Cores 80 RT-Cores	RT Cores -
CUs 80 CUs	CUs 8 CUs

Clocks

Base Clock 1.82GHz	Base Clock 300MHz
Boost Clock 2.25GHz	Boost Clock 1.95GHz

Cache

L0 Cache 32KB/WGP	L0 Cache -
L1 128KB/Array	L1 16KB/CU
L2 Cache 4MB shared	L2 Cache 1MB shared
L3 Cache 128MB shared	L3 Cache -
L3 Bandwidth 1.66TB/s	L3 Bandwidth -

Memory

16GB GDDR6 placeholder	Shared Memory LPDDR4X·DDR4
Memory Bus 256-bit	Memory Bus 128-bit
Memory Speed 16GT/s	Memory Speed 4.3GT/s
Memory Bandwidth 512GB/s	Memory Bandwidth 68.3GB/s
ECC No	ECC No

Power & Thermals

TDP 300W	TDP Shared
Max Temp 110°C Max	Max Temp -

Video Output

Max Resolution 7680x4320	Max Resolution 4096x2160
Refresh Rate Calculator 7680x4320 Resolution8K UHD Refresh Rate 120Hz	Refresh Rate Calculator 3840x2160 Resolution4K UHD Refresh Rate 64Hz
Multi-Monitor 4	Multi-Monitor 3
Adaptive Sync FreeSync	Adaptive Sync FreeSync
DSC Supported	DSC Not Supported
HDCP HDCP 2.3	HDCP -

Ports

2x DisplayPort 1.4 1x HDMI 2.1 1x USB-C

-

API Support

Shader Model 6.5	Shader Model 6.7
DirectX DirectX 12 Direct3D 12_2	DirectX DirectX 12 Direct3D 12_1
OpenGL 4.6 OpenCL 2.1 Vulkan 1.2	OpenGL 4.6 OpenCL 3 Vulkan 1.2
GFX 10.3	GFX 9

Encoder

Encoder VCN 3.0	Encoder VCN 2.0
Codec AVC (H.264) HEVC (H.265)	Codec AVC (H.264) HEVC (H.265)

Decoder

Decoder VCN 3.0	Decoder VCN 2.0
Codec MPEG-1 MPEG-2 MPEG-4 JPEG VC-1 VP9 AVC (H.264) HEVC (H.265) AV1	Codec MPEG-1 MPEG-2 MPEG-4 JPEG VC-1 VP9 AVC (H.264) HEVC (H.265) -

Card

Form Factor PCIe Card	Form Factor iGPU
PCIe PCIe 4.0 x16 2.5-Slots	PCIe -
Height 120mm (4.72") Width 267mm (10.51") Depth 50mm (1.97")	-
Cooling Open-Air 3x Fans	Cooling Open-Air -
Power Connectors 2x 8-Pin	Power Connectors -
Multi-GPU Multi-GPU Support Supported Multi-GPU Type Bridgeless	Multi-GPU -

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture RDNA 2	Architecture GCN 5
Family Radeon RX 6000	Family Vega
Branding	Branding
Codename Sienna Cichlid	Codename -
Chip Variant Navi 21 XL	Chip Variant Vega 3
Market Segment Desktop	Market Segment Laptop
Release Date Dec 8, 2020	Release Date Apr 13, 2021

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node N7	Fabrication Node N7
Die Size 520mm²	Die Size 156mm²
Transistor Count 26.8B	Transistor Count 9.8B
Transistor Density 51.56 MTr/mm²	Transistor Density 63 MTr/mm²

Images