Qualcomm Adreno 660 vs Sapphire Radeon RX 6900 XT Nitro+ Full Specs

Summary

768 Shaders 840MHz	5,120 Shaders 2.29GHz
Shared Memory51.2GB/sLPDDR5	16GB GDDR6512GB/s placeholder
Peak·FP32·FP16 1.29 TFLOPS	Peak·FP32·FP16 23.4 TFLOPS
Form Factor iGPU	Form Factor PCIe Card
TDP 5W	TDP 340W
Power Connectors -	Power Connectors 2x 8-Pin

Highlights

Peak OPS

Peak OPS FP32 FP16 FP64 Memory Bandwidth TDP

Adreno 6602.58 TFLOPSFP16

x1

Radeon RX 6900 XT Nitro+46.8 TFLOPSFP16

x18.13

Show Top Score

Theoretical Performance

Clock Speed840MHz UC·Boost·OC	Clock Speed2285MHz UC·Base·Boost·OC
Peak OPS 2.58 TFLOPSFP16	Peak OPS 46.8 TFLOPSFP16
FP32 1.29 TFLOPS	FP32 23.4 TFLOPS
FP64 322.6 GFLOPS	FP64 1.46 TFLOPS
Pixel Rate 20.2 GPixel/s	Pixel Rate 292.5 GPixel/s
Texture Rate 40.3 GTexel/s	Texture Rate 731.2 GTexel/s

Core Config

Shaders 768 Shaders	Shaders 5,120 Shaders
TMUs 48 TMUs	TMUs 320 TMUs
ROPs 24 ROPs	ROPs 128 ROPs
RT Cores -	RT Cores 80 RT-Cores
EUs 6 EUs	CUs 80 CUs

Clocks

Base Clock -	Base Clock 1.82GHz
Boost Clock 840MHz	Boost Clock 2.29GHz

Cache

L0 Cache -	L0 Cache 32KB/WGP
L1 8KB/CU	L1 128KB/Array
L2 Cache -	L2 Cache 4MB shared
L3 Cache -	L3 Cache 128MB shared
L3 Bandwidth -	L3 Bandwidth 1.66TB/s

Memory

Shared MemoryLPDDR5	16GB GDDR6 placeholder
Memory Bus 64-bit	Memory Bus 256-bit
Memory Speed 6.4GT/s	Memory Speed 16GT/s
Memory Bandwidth 51.2GB/s	Memory Bandwidth 512GB/s
ECC No	ECC No

Power & Thermals

TDP 5W	TDP 340W
Max Temp -	Max Temp 110°C Max

Video Output

Max Resolution 2520x1080	Max Resolution 7680x4320
Refresh Rate Calculator 1920x1080 Resolution1080p FHD Refresh Rate 78Hz	Refresh Rate Calculator 7680x4320 Resolution8K UHD Refresh Rate 120Hz
Multi-Monitor 1	Multi-Monitor 4
Adaptive Sync -	Adaptive Sync FreeSync
DSC Not Supported	DSC Supported
HDCP -	HDCP HDCP 2.3

Ports

-	3x DisplayPort 1.4 1x HDMI 2.1

API Support

Shader Model -	Shader Model 6.5
DirectX DirectX 12 Direct3D 12_1	DirectX DirectX 12 Direct3D 12_2
OpenGL 3.2 OpenCL 2 Vulkan 1.1	OpenGL 4.6 OpenCL 2.1 Vulkan 1.2
-	GFX 10.3

Encoder

Encoder Hexagon 780	Encoder VCN 3.0
Codec H.263 MPEG-4 VC-1 VP8 VP9 AVC (H.264) HEVC (H.265)	Codec - - - - - AVC (H.264) HEVC (H.265)

Decoder

Decoder Hexagon 780	Decoder VCN 3.0
Codec MPEG-1 MPEG-2 MPEG-4 - VC-1 VP8 VP9 AVC (H.264) HEVC (H.265) -	Codec MPEG-1 MPEG-2 MPEG-4 JPEG VC-1 - VP9 AVC (H.264) HEVC (H.265) AV1

Card

Form Factor iGPU	Form Factor PCIe Card
PCIe -	PCIe PCIe 4.0 x16 2.7-Slots
-	Height 134.3mm (5.29") Width 310mm (12.2") Depth 55.3mm (2.18")
Cooling Open-Air -	Cooling Open-Air 3x Fans
Power Connectors -	Power Connectors 2x 8-Pin
Multi-GPU -	Multi-GPU Multi-GPU Support Supported Multi-GPU Type Bridgeless

Chip

Manufacturer Qualcomm	Manufacturer Sapphire
Chip Designer Qualcomm	Chip Designer AMD
Architecture Adreno 600	Architecture RDNA 2
Family Adreno 600	Family Radeon RX 6000
Branding	Branding
Codename -	Codename Sienna Cichlid
Chip Variant -	Chip Variant Navi 21 XL
Market Segment Smartphone	Market Segment Desktop
Release Date Mar 25, 2021	Release Date Dec 8, 2020

Fabrication

Foundry Samsung	Foundry TSMC
Fabrication Node 5LPE	Fabrication Node N7
Die Size -	Die Size 520mm²
Transistor Count -	Transistor Count 26.8B
Transistor Density -	Transistor Density 51.56 MTr/mm²

Images