AMD Radeon 660M 4CU 1800MHz vs AMD Viola Full Specs

Summary

256 Shaders 1.8GHz	3,840 Shaders 2.23GHz
Shared Memory76.8GB/s DDR5·LPDDR5	Shared Memory
Peak·FP32·FP16 921.6 GFLOPS	Peak·FP32·FP16 34.3 TFLOPS
Form Factor iGPU	Form Factor iGPU
TDP Shared	TDP 180W

Highlights

Peak OPS

Peak OPS FP32 FP16 FP64 BF16 Memory Bandwidth TDP

Radeon 660M 4CU 1800MHz1.84 TFLOPSFP16

x1

Viola68.6 TFLOPSFP16

x37.22

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Theoretical Performance

Clock Speed1800MHz UC·Base·Boost·OC	Clock Speed2233MHz UC·Boost·OC
Peak OPS 1.84 TFLOPSFP16	Peak OPS 68.6 TFLOPSFP16
-	BF16 68.6 TFLOPS
FP32 921.6 GFLOPS	FP32 34.3 TFLOPS
FP64 57.6 GFLOPS	FP64 1.07 TFLOPS
Pixel Rate 28.8 GPixel/s	Pixel Rate 214.4 GPixel/s
Texture Rate 28.8 GTexel/s	Texture Rate 535.9 GTexel/s

Core Config

Shaders 256 Shaders	Shaders 3,840 Shaders
TMUs 16 TMUs	TMUs 240 TMUs
ROPs 16 ROPs	ROPs 96 ROPs
RT Cores 4 RT-Cores	RT Cores 60 RT-Cores
CUs 4 CUs	CUs 60 CUs

Clocks

Base Clock 1.5GHz	Base Clock -
Boost Clock 1.8GHz	Boost Clock 2.23GHz

Cache

L2 Cache -

L2 Cache 4MB shared

Memory

Shared Memory DDR5·LPDDR5	Shared Memory
Memory Bus 128-bit	Memory Bus 256-bit
Memory Speed 4.8GT/s	Memory Speed 18GT/s
Memory Bandwidth 76.8GB/s	Memory Bandwidth 576GB/s
ECC -	ECC No

Power & Thermals

TDP Shared

TDP 180W

Video Output

Max Resolution -	Max Resolution 3840x2160
Refresh Rate Calculator -	Refresh Rate Calculator 3840x2160 Resolution4K UHD Refresh Rate 120Hz
Multi-Monitor 4	Multi-Monitor 1
Adaptive Sync -	Adaptive Sync FreeSync
DSC -	DSC Not Supported
HDCP HDCP 2.2	HDCP -

API Support

Shader Model -	Shader Model 6.5
-	OpenGL 4.6 OpenCL 1.2 Vulkan 1.2

Encoder

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

Decoder

Decoder VCN 3.1	-
Codec MPEG-1 MPEG-2 MPEG-4 JPEG VC-1 VP9 AVC (H.264) HEVC (H.265) AV1	Codec -

Card

Form Factor iGPU

Form Factor iGPU

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer -	Chip Designer AMD
Architecture -	Architecture RDNA 4
Family 600	Family Console
Branding	Branding
Market Segment Laptop	Market Segment Console
Release Date Sep 30, 2023	Release Date Sep 10, 2024

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node N6	Fabrication Node N6
Die Size 210mm²	Die Size 260mm²
Transistor Count 13.1B	Transistor Count 10.6B
Transistor Density 62 MTr/mm²	Transistor Density 41 MTr/mm²

Images