AMD Radeon R7 6CU 720MHz GCN 2 vs AMD Radeon HD 7660D Full Specs

Summary

384 Shaders 720MHz	384 Shaders 800MHz
Shared Memory34.1GB/sDDR4	Shared Memory29.9GB/sDDR3
Peak·FP32·FP16 553 GFLOPS	Peak·FP32·FP16 614.4 GFLOPS
Form Factor iGPU	Form Factor iGPU
TDP Shared	TDP Shared

Theoretical Performance

Clock Speed720MHz UC·Boost·OC	Clock Speed800MHz UC·Base·Boost·OC
Peak OPS 553 GFLOPSFP16	Peak OPS 614.4 GFLOPSFP32
FP32 553 GFLOPS	FP32 614.4 GFLOPS
FP64 34.56 GFLOPS	-
Pixel Rate 5.8 GPixel/s	Pixel Rate 6.4 GPixel/s
Texture Rate 17.3 GTexel/s	Texture Rate 19.2 GTexel/s

Core Config

Shaders 384 Shaders	Shaders 384 Shaders
TMUs 24 TMUs	TMUs 24 TMUs
ROPs 8 ROPs	ROPs 8 ROPs
CUs 6 CUs	CUs 6 CUs

Clocks

Base Clock -	Base Clock 760MHz
Boost Clock 720MHz	Boost Clock 800MHz

Cache

L2 Cache 128KB shared

L2 Cache 256KB shared

Memory

Shared MemoryDDR4	Shared MemoryDDR3
Memory Bus 128-bit	Memory Bus 128-bit
Memory Speed 2.1GT/s	Memory Speed 1.9GT/s
Memory Bandwidth 34.1GB/s	Memory Bandwidth 29.9GB/s
ECC No	ECC No

Video Output

Multi-Monitor 3

Multi-Monitor 2

Encoder

Encoder Model VCE 2.0	-
Codec AVC (H.264)	Codec -

Decoder

Decoder Model UVD 4.2	Decoder Model UVD 3.1
Codec MPEG-1 MPEG-2 MPEG-4 VC-1 AVC (H.264)	Codec MPEG-1 MPEG-2 MPEG-4 VC-1 AVC (H.264)

Card

Form Factor iGPU	Form Factor iGPU
Cooling Open-Air	Cooling Passive

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture GCN 2	Architecture TeraScale 3
Family GCN 2	Family Radeon HD 7000
Branding	Branding
Codename Spectre	Codename Devastator
Chip Variant Spectre SL	Chip Variant -
Market Segment Laptop	Market Segment Desktop
Release Date Jan 14, 2014	Release Date Jun 1, 2012

Fabrication

Foundry GlobalFoundries	Foundry GlobalFoundries
Fabrication Node 28nm	Fabrication Node 32nm
Die Size 245mm²	Die Size 246mm²
Transistor Count 2.4 Billion	Transistor Count 1.3 Billion
Transistor Density 10 MTr/mm²	Transistor Density 5 MTr/mm²

Images