AMD Radeon 660M 1900MHz vs AMD Radeon 740M 2600MHz Full Specs

Summary

384 Shaders 1.9GHz	256 Shaders 2.6GHz
Shared Memory204.8GB/s LPDDR5·DDR5	Shared Memory83.2GB/sDDR5
Peak·FP32·FP16 1.46 TFLOPS	Peak·FP32·FP16 1.33 TFLOPS
Form Factor iGPU	Form Factor iGPU
TDP Shared	TDP Shared

Theoretical Performance

Clock Speed1900MHz UC·Base·Boost·OC	Clock Speed2600MHz UC·Base·Boost·OC
Peak OPS 2.92 TFLOPSFP16	Peak OPS 2.66 TFLOPSFP16
-	BF16 2.66 TFLOPS
FP32 1.46 TFLOPS	FP32 1.33 TFLOPS
FP64 91.2 GFLOPS	FP64 83.2 GFLOPS
Pixel Rate 30.4 GPixel/s	Pixel Rate 20.8 GPixel/s
Texture Rate 45.6 GTexel/s	Texture Rate 41.6 GTexel/s

Core Config

Shaders 384 Shaders	Shaders 256 Shaders
TMUs 24 TMUs	TMUs 16 TMUs
ROPs 16 ROPs	ROPs 8 ROPs
RT Cores 6 RT-Cores	RT Cores 4 RT-Cores
CUs 6 CUs	CUs 4 CUs

Clocks

Base Clock 1.5GHz	Base Clock 1.5GHz
Boost Clock 1.9GHz	Boost Clock 2.6GHz

Memory

Shared Memory LPDDR5·DDR5	Shared MemoryDDR5
Memory Bus 256-bit	Memory Bus 128-bit
Memory Speed 6.4GT/s	Memory Speed 5.2GT/s
Memory Bandwidth 204.8GB/s	Memory Bandwidth 83.2GB/s
ECC No	ECC No

Video Output

Multi-Monitor 4	Multi-Monitor 4
HDCP HDCP 2.2	HDCP HDCP 2.2

Encoder

Encoder Model VCN 3.1	Encoder Model VCN 4.0
Codec - AVC (H.264) HEVC (H.265) -	Codec VP9 AVC (H.264) HEVC (H.265) AV1

Decoder

Decoder Model VCN 3.1	Decoder Model VCN 4.0
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 iGPU

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture RDNA 2	Architecture RDNA 3
Family 600	Family 700
Branding	Branding
Codename Rembrandt	Codename Phoenix
Market Segment Laptop	Market Segment Laptop
Release Date Jan 4, 2023	Release Date Jan 8, 2024

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node N6	Fabrication Node N4
Die Size 210mm²	Die Size 137mm²
Transistor Count 13.1 Billion	Transistor Count 20.9 Billion
Transistor Density 62 MTr/mm²	Transistor Density 153 MTr/mm²

Images