AMD Radeon RX 6800 XT vs AMD Radeon Vega 7 1800MHz Full Specs

Summary

4,608 Shaders 2.25GHz	448 Shaders 1.8GHz
16GB GDDR6512GB/s placeholder	Shared Memory68.3GB/s LPDDR4X·DDR4
Peak·FP32·FP16 20.74 TFLOPS	Peak·FP32·FP16 1.61 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 6800 XT41.47 TFLOPSFP16

x12.86

Radeon Vega 7 1800MHz3.23 TFLOPSFP16

x1

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Theoretical Performance

Clock Speed2250MHz UC·Base·Boost·OC	Clock Speed1800MHz UC·Base·Boost·OC
Peak OPS 41.47 TFLOPSFP16	Peak OPS 3.23 TFLOPSFP16
FP32 20.74 TFLOPS	FP32 1.61 TFLOPS
FP64 1.3 TFLOPS	FP64 100.8 GFLOPS
Pixel Rate 288 GPixel/s	Pixel Rate 14.4 GPixel/s
Texture Rate 648 GTexel/s	Texture Rate 50.4 GTexel/s

Core Config

Shaders 4,608 Shaders	Shaders 448 Shaders
TMUs 288 TMUs	TMUs 28 TMUs
ROPs 128 ROPs	ROPs 8 ROPs
RT Cores 72 RT-Cores	RT Cores -
CUs 72 CUs	CUs 7 CUs

Clocks

Base Clock 1.82GHz	Base Clock 300MHz
Boost Clock 2.25GHz	Boost Clock 1.8GHz

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 Nov 18, 2020	Release Date Jan 12, 2021

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node N7	Fabrication Node N7
Die Size 520mm²	Die Size 180mm²
Transistor Count 26.8B	Transistor Count 10.7B
Transistor Density 51.56 MTr/mm²	Transistor Density 59 MTr/mm²

Images