GPU Comparison

A

AMD

RADEON

AMD Radeon 660M

CORE STATE Rembrandt

VRAM System Shared

CLOCK SPEED 1900 MHz

TDP 40 W

BUS WIDTH System Shared

ARCHITECTURE RDNA 2.0

nm

PROCESS 6 nm

LAUNCH DATE 2022

VS

A

AMD

RADEON

Radeon RX 6600S

CORE STATE Navi 23

VRAM 4 GB

CLOCK SPEED 2000 MHz

TDP 80 W

BUS WIDTH 128 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 7 nm

LAUNCH DATE 2022

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

66,403

geekbench_vulkan

14,748

N/A

passmark_directx_10

N/A

81

passmark_directx_11

N/A

105

passmark_directx_12

N/A

56

passmark_directx_9

N/A

176

passmark_g2d

N/A

647

passmark_g3d

N/A

12,649

passmark_gpu_compute

N/A

4,879

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RX 6600S

Core Specs

Shading Units

384

1,792 +366.7%

Shaders

384

1,792 +366.7%

TMUs

24

112 +366.7%

ROPs

16

64 +300.0%

Compute Units

6

28 +366.7%

Clocks

Base Clock

1500 MHz

1700 MHz

Boost Clock

1900 MHz

2000 MHz

Game Clock

—

1881 MHz

Memory Clock

System Shared

1750 MHz 14 Gbps effective

Memory

Memory Size

System Shared

4 GB

VRAM (MB)

—

4,096

Memory Type

System Shared

GDDR6

Memory Bus

System Shared

128 bit

Bandwidth

System Dependent

224.0 GB/s

Cache

L1 Cache

128 KB per Array

128 KB per Array

L2 Cache

2 MB

2 MB

L3 Cache

—

32 MB

L0 Cache

32 KB per WGP

32 KB per WGP

Performance

Pixel Rate

30.40 GPixel/s

128.0 GPixel/s

Texture Rate

45.60 GTexel/s

224.0 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

7.168 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

448.0 GFLOPS (1:16)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

14.34 TFLOPS (2:1)

AI/RT

RT Cores

6

28 +366.7%

Power

TDP

40 W

80 W

TDP (W)

40

80 +100.0%

Power Connectors

None

None

Architecture

Architecture

RDNA 2.0

RDNA 2.0

GPU Name

Rembrandt

Navi 23

Generation

Navi II IGP (Rembrandt Mobile)

Navi Mobile (RX 6000M)

Process Size

6 nm

7 nm

Transistors

13,100 million

11,060 million

Die Size

208 mm²

237 mm²

Foundry

TSMC

TSMC

Density

63.0M / mm²

46.7M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.4

1.4

OpenCL

2.0

2.1

Shader Model

6.8

6.8

Physical

Slot Width

IGP

IGP

Outputs

Portable Device Dependent

Portable Device Dependent

Bus Interface

PCIe 4.0 x8

PCIe 4.0 x8

Other

Production

End-of-life

End-of-life

Predecessor

Vega II IGP

Polaris Mobile

Successor

Navi III IGP

—

View Radeon 660M Details View Radeon RX 6600S Details