AMD Radeon 660M 1900MHz vs AMD Radeon RX 6650 XT Full Specs

Summary

384 Shaders 1.9GHz	2,048 Shaders 2.63GHz
Shared Memory102.4GB/s LPDDR5·DDR5	8GB GDDR6280.3GB/s placeholder
Peak·FP32·FP16 1.46 TFLOPS	Peak·FP32·FP16 10.79 TFLOPS
Form Factor iGPU	Form Factor PCIe Card
TDP Shared	TDP 180W
Power Connectors -	Power Connectors 1x 8-Pin

Highlights

Peak OPS

Peak OPS FP32 FP16 FP64 Memory Bandwidth TDP

Radeon 660M 1900MHz2.92 TFLOPSFP16

x1

Radeon RX 6650 XT21.59 TFLOPSFP16

x7.40

Show Top Score

Theoretical Performance

Clock Speed1900MHz UC·Base·Boost·OC	Clock Speed2635MHz UC·Base·Boost·OC
Peak OPS 2.92 TFLOPSFP16	Peak OPS 21.59 TFLOPSFP16
FP32 1.46 TFLOPS	FP32 10.79 TFLOPS
FP64 91.2 GFLOPS	FP64 674.6 GFLOPS
Pixel Rate 30.4 GPixel/s	Pixel Rate 168.6 GPixel/s
Texture Rate 45.6 GTexel/s	Texture Rate 337.3 GTexel/s

Core Config

Shaders 384 Shaders	Shaders 2,048 Shaders
TMUs 24 TMUs	TMUs 128 TMUs
ROPs 16 ROPs	ROPs 64 ROPs
RT Cores 6 RT-Cores	RT Cores 32 RT-Cores
CUs 6 CUs	CUs 32 CUs

Clocks

Base Clock 1.5GHz	Base Clock 2.06GHz
Boost Clock 1.9GHz	Boost Clock 2.63GHz

Cache

L0 Cache 32KB/WGP	L0 Cache 32KB/WGP
L1 256KB/Array	L1 128KB/Array
L2 Cache -	L2 Cache 2MB shared
L3 Cache -	L3 Cache 32MB shared
L3 Bandwidth -	L3 Bandwidth 832GB/s

Memory

Shared Memory LPDDR5·DDR5	8GB GDDR6 placeholder
Memory Bus 128-bit	Memory Bus 128-bit
Memory Speed 6.4GT/s	Memory Speed 17.5GT/s
Memory Bandwidth 102.4GB/s	Memory Bandwidth 280.3GB/s
ECC No	ECC No

Power & Thermals

TDP Shared	TDP 180W
Max Temp -	Max Temp 110°C Max

Video Output

Max Resolution 4096x2160	Max Resolution 7680x4320
Refresh Rate Calculator 3840x2160 Resolution4K UHD Refresh Rate 64Hz	Refresh Rate Calculator 7680x4320 Resolution8K UHD Refresh Rate 120Hz
Multi-Monitor 4	Multi-Monitor 4
Adaptive Sync FreeSync	Adaptive Sync FreeSync
DSC Not Supported	DSC Supported
HDCP HDCP 2.2	HDCP HDCP 2.3

Ports

-	3x DisplayPort 1.4 1x HDMI 2.1

API Support

Shader Model 6.7	Shader Model 6.5
DirectX DirectX 12 Direct3D 12_2	DirectX DirectX 12 Direct3D 12_2
OpenGL 4.6 OpenCL 2.2 Vulkan 1.3	OpenGL 4.6 OpenCL 2.1 Vulkan 1.2
GFX 10.3	GFX 10.3

Encoder

Encoder VCN 3.1	Encoder VCN 3.0
Codec AVC (H.264) HEVC (H.265)	Codec AVC (H.264) HEVC (H.265)

Decoder

Decoder VCN 3.1	Decoder VCN 3.0
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) AV1

Card

Form Factor iGPU	Form Factor PCIe Card
PCIe -	PCIe PCIe 4.0 x8 2-Slots
-	Height 110mm (4.33") Width 190mm (7.48") Depth 40mm (1.57")
Cooling Open-Air -	Cooling Open-Air 2x Fans
Power Connectors -	Power Connectors 1x 8-Pin
Multi-GPU -	Multi-GPU Multi-GPU Support Supported Multi-GPU Type Bridgeless

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture RDNA 2	Architecture RDNA 2
Family 600	Family Radeon RX 6000
Branding	Branding
Codename Rembrandt	Codename Dimgrey Cavefish
Chip Variant -	Chip Variant Navi 23 XL
Market Segment Laptop	Market Segment Desktop
Release Date Jan 4, 2023	Release Date May 10, 2022

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node N6	Fabrication Node N7
Die Size 210mm²	Die Size 237mm²
Transistor Count 13.1B	Transistor Count 11.1B
Transistor Density 62 MTr/mm²	Transistor Density 46.67 MTr/mm²

Images