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 6800M

CORE STATE Navi 22

VRAM 12 GB

CLOCK SPEED 2390 MHz

TDP 145 W

BUS WIDTH 192 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 7 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

87,621

geekbench_vulkan

14,748

96,572

3dmark_3dmark_steel_nomad_dx12

N/A

2,238

geekbench_metal

N/A

113,421

passmark_directx_10

N/A

101

passmark_directx_11

N/A

127

passmark_directx_12

N/A

65

passmark_directx_9

N/A

147

passmark_g2d

N/A

538

passmark_g3d

N/A

13,261

passmark_gpu_compute

N/A

5,032

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RX 6800M

Core Specs

Shading Units

384

2,560 +566.7%

Shaders

384

2,560 +566.7%

TMUs

24

160 +566.7%

ROPs

16

64 +300.0%

Compute Units

6

40 +566.7%

Clocks

Base Clock

1500 MHz

2116 MHz

Boost Clock

1900 MHz

2390 MHz

Game Clock

—

2300 MHz

Memory Clock

System Shared

2000 MHz 16 Gbps effective

Memory

Memory Size

System Shared

12 GB

VRAM (MB)

—

12,288

Memory Type

System Shared

GDDR6

Memory Bus

System Shared

192 bit

Bandwidth

System Dependent

384.0 GB/s

Cache

L1 Cache

128 KB per Array

128 KB per Array

L2 Cache

2 MB

3 MB

L3 Cache

—

96 MB

L0 Cache

32 KB per WGP

32 KB per WGP

Performance

Pixel Rate

30.40 GPixel/s

153.0 GPixel/s

Texture Rate

45.60 GTexel/s

382.4 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

12.24 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

764.8 GFLOPS (1:16)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

24.47 TFLOPS (2:1)

AI/RT

RT Cores

6

40 +566.7%

Power

TDP

40 W

145 W

TDP (W)

40

145 +262.5%

Power Connectors

None

None

Architecture

Architecture

RDNA 2.0

RDNA 2.0

GPU Name

Rembrandt

Navi 22

Generation

Navi II IGP (Rembrandt Mobile)

Navi Mobile (RX 6000M)

Process Size

6 nm

7 nm

Transistors

13,100 million

17,200 million

Die Size

208 mm²

335 mm²

Foundry

TSMC

TSMC

Density

63.0M / mm²

51.3M / 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 x16

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 6800M Details