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

NVIDIA

GEFORCE

RTX A4000 Mobile

CORE STATE GA104

VRAM 8 GB

CLOCK SPEED 1680 MHz

TDP 115 W

BUS WIDTH 256 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

97,178

geekbench_vulkan

14,748

73,002

passmark_directx_10

N/A

105

passmark_directx_11

N/A

127

passmark_directx_12

N/A

66

passmark_directx_9

N/A

157

passmark_g2d

N/A

585

passmark_g3d

N/A

14,796

passmark_gpu_compute

N/A

6,394

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RTX A4000 Mobile

Core Specs

Shading Units

384

5,120 +1233.3%

Shaders

384

5,120 +1233.3%

TMUs

24

160 +566.7%

ROPs

16

80 +400.0%

Compute Units

6

—

SM Count

—

40

Clocks

Base Clock

1500 MHz

1140 MHz

Boost Clock

1900 MHz

1680 MHz

Memory Clock

System Shared

1500 MHz 12 Gbps effective

Memory

Memory Size

System Shared

8 GB

VRAM (MB)

—

8,192

Memory Type

System Shared

GDDR6

Memory Bus

System Shared

256 bit

Bandwidth

System Dependent

384.0 GB/s

Cache

L1 Cache

128 KB per Array

128 KB (per SM)

L2 Cache

2 MB

4 MB

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

30.40 GPixel/s

134.4 GPixel/s

Texture Rate

45.60 GTexel/s

268.8 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

17.20 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

268.8 GFLOPS (1:64)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

17.20 TFLOPS (1:1)

AI/RT

RT Cores

6

40 +566.7%

Tensor Cores

—

160

Power

TDP

40 W

115 W

TDP (W)

40

115 +187.5%

Power Connectors

None

None

Architecture

Architecture

RDNA 2.0

Ampere

GPU Name

Rembrandt

GA104

Generation

Navi II IGP (Rembrandt Mobile)

Ampere-MW (Ax000)

Process Size

6 nm

8 nm

Transistors

13,100 million

17,400 million

Die Size

208 mm²

392 mm²

Foundry

TSMC

Samsung

Density

63.0M / mm²

44.4M / 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

3.0

CUDA

—

8.6

Shader Model

6.8

6.8

Physical

Slot Width

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

Quadro Turing-M

Successor

Navi III IGP

Ada-MW

View Radeon 660M Details View RTX A4000 Mobile Details