AMD Lockhart vs AMD Radeon RX 6600M Full Specs

Summary

1,280 Shaders 1.56GHz	1,792 Shaders 2.18GHz
Shared Memory	8GB GDDR6256GB/s
Peak·FP32·FP16 4.01 TFLOPS	Peak·FP32·FP16 7.8 TFLOPS
Form Factor iGPU	Form Factor Soldered
TDP Shared	TDP 100W

Highlights

Peak OPS

Peak OPS FP32 FP16 FP64 Memory Bandwidth TDP

Lockhart8.01 TFLOPSFP16

x1

Radeon RX 6600M15.6 TFLOPSFP16

x1.95

Show Top Score

Theoretical Performance

Clock Speed1565MHz UC·Boost·OC	Clock Speed2177MHz UC·Base·Boost·OC
Peak OPS 8.01 TFLOPSFP16	Peak OPS 15.6 TFLOPSFP16
FP32 4.01 TFLOPS	FP32 7.8 TFLOPS
FP64 250.4 GFLOPS	FP64 487.7 GFLOPS
Pixel Rate 50.1 GPixel/s	Pixel Rate 139.3 GPixel/s
Texture Rate 125.2 GTexel/s	Texture Rate 243.8 GTexel/s

Core Config

Shaders 1,280 Shaders	Shaders 1,792 Shaders
TMUs 80 TMUs	TMUs 112 TMUs
ROPs 32 ROPs	ROPs 64 ROPs
RT Cores 20 RT-Cores	RT Cores 28 RT-Cores
CUs 20 CUs	CUs 28 CUs

Clocks

Base Clock -	Base Clock 1.49GHz
Boost Clock 1.56GHz	Boost Clock 2.18GHz

Cache

L0 Cache -	L0 Cache 32KB/WGP
L1 -	L1 128KB/Array
L2 Cache 4MB shared	L2 Cache 2MB shared
L3 Cache -	L3 Cache 32MB shared
L3 Bandwidth -	L3 Bandwidth 832GB/s

Memory

Shared Memory	8GB GDDR6
Memory Bus 128-bit	Memory Bus 128-bit
Memory Speed 14GT/s	Memory Speed 16GT/s
Memory Bandwidth 224GB/s	Memory Bandwidth 256GB/s
ECC No	ECC No

Power & Thermals

TDP Shared

TDP 100W

Video Output

Max Resolution 3840x2160	Max Resolution 7680x4320
Refresh Rate Calculator 3840x2160 Resolution4K UHD Refresh Rate 60Hz	Refresh Rate Calculator 7680x4320 Resolution8K UHD Refresh Rate 120Hz
Multi-Monitor 1	Multi-Monitor 3
Adaptive Sync FreeSync	Adaptive Sync FreeSync
DSC Not Supported	DSC Supported
HDCP -	HDCP HDCP 2.3

API Support

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

Encoder

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

Decoder

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

Card

Form Factor iGPU	Form Factor Soldered
PCIe -	PCIe PCIe 4.0 x8
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 Console	Family Radeon RX 6000
Branding	Branding
Codename -	Codename Dimgrey Cavefish
Chip Variant -	Chip Variant Navi 23 XL
Market Segment Console	Market Segment Laptop
Release Date Nov 10, 2020	Release Date May 31, 2021

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node N7	Fabrication Node N7
Die Size 197mm²	Die Size 237mm²
Transistor Count 8B	Transistor Count 11.1B
Transistor Density 41 MTr/mm²	Transistor Density 46.67 MTr/mm²

Images