AMD Radeon 660M vs AMD Radeon 680M

VS

AMD Radeon 660M

AMD Radeon 680M

We compared two Integrated graphics card GPUs: 0System Shared VRAM Radeon 660M and 0System Shared VRAM Radeon 680M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 660M 's Advantages

Lower TDP (15W vs 50W)

AMD Radeon 680M 's Advantages

Boost Clock has increased by 16% (2200MHz vs 1900MHz)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 660M

1.459 TFLOPS

Radeon 680M +131%

3.379 TFLOPS

Blender

Radeon 660M

110

Radeon 680M +121%

244

Radeon 660M

VS

Radeon 680M

Graphics Card

Jan 2022

Release Date

Jan 2022

Rembrandt

Generation

Navi II IGP

Integrated

Type

Integrated

PCIe 4.0 x8

Bus Interface

PCIe 4.0 x8

Clock Speeds

1500 MHz

Base Clock

2000 MHz

1900 MHz

Boost Clock

2200 MHz

System Shared

Memory Clock

System Shared

Memory

System Shared

Memory Size

System Shared

Memory Type

System Shared

Memory Bus

System Shared

System Dependent

Bandwidth

System Dependent

Render Config

6

Compute Units

12

-

384

Shading Units

768

24

TMUs

48

16

ROPs

32

-

6

RT Cores

12

128 KB per Array

L1 Cache

128 KB per Array

2 MB

L2 Cache

2 MB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

70.40 GPixel/s

45.60 GTexel/s

Texture Rate

105.6 GTexel/s

2.918 TFLOPS

FP16 (half)

6.758 TFLOPS

1459 GFLOPS

FP32 (float)

3.379 TFLOPS

91.20 GFLOPS

FP64 (double)

211.2 GFLOPS

Board Design

15W

TDP

50W

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Rembrandt

GPU Name

Rembrandt

-

RDNA 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

6 nm

Process Size

6 nm

13.1 billion

Transistors

13.1 billion

210 mm²

Die Size

208 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

2.0

1.2

Vulkan

1.3

-

6.5

Shader Model

6.7

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