AMD Radeon 680M 2400MHz vs AMD Radeon RX 6600 Full Specs

Summary

768 Shaders 2.4GHz	1,792 Shaders 2.49GHz
Shared Memory204.8GB/s LPDDR5·DDR5	8GB GDDR6224GB/s placeholder
Peak·FP32·FP16 3.69 TFLOPS	Peak·FP32·FP16 8.93 TFLOPS
Form Factor iGPU	Form Factor PCIe Card
TDP Shared	TDP 132W
Power Connectors -	Power Connectors 1x 8-Pin

Highlights

Peak OPS

Peak OPS FP32 FP16 FP64 Memory Bandwidth TDP

Radeon 680M 2400MHz7.37 TFLOPSFP16

x1

Radeon RX 660017.86 TFLOPSFP16

x2.42

Show Top Score

Theoretical Performance

Clock Speed2400MHz UC·Base·Boost·OC	Clock Speed2491MHz UC·Base·Boost·OC
Peak OPS 7.37 TFLOPSFP16	Peak OPS 17.86 TFLOPSFP16
FP32 3.69 TFLOPS	FP32 8.93 TFLOPS
FP64 230.4 GFLOPS	FP64 558 GFLOPS
Pixel Rate 76.8 GPixel/s	Pixel Rate 159.4 GPixel/s
Texture Rate 115.2 GTexel/s	Texture Rate 279 GTexel/s

Core Config

Shaders 768 Shaders	Shaders 1,792 Shaders
TMUs 48 TMUs	TMUs 112 TMUs
ROPs 32 ROPs	ROPs 64 ROPs
RT Cores 12 RT-Cores	RT Cores 28 RT-Cores
CUs 12 CUs	CUs 28 CUs

Clocks

Base Clock 2GHz	Base Clock 1.63GHz
Boost Clock 2.4GHz	Boost Clock 2.49GHz

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 256-bit	Memory Bus 128-bit
Memory Speed 6.4GT/s	Memory Speed 14GT/s
Memory Bandwidth 204.8GB/s	Memory Bandwidth 224GB/s
ECC No	ECC No

Power & Thermals

TDP Shared	TDP 132W
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 1x Fan
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, 2022	Release Date Aug 11, 2021

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