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

GeForce GTX 980M

CORE STATE GM204

VRAM 8 GB

CLOCK SPEED 1127 MHz

TDP —

BUS WIDTH 256 bit

ARCHITECTURE Maxwell 2.0

nm

PROCESS 28 nm

LAUNCH DATE 2014

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

23,832

geekbench_vulkan

14,748

13,964

3dmark_3dmark_steel_nomad_dx12

N/A

649

passmark_directx_10

N/A

35

passmark_directx_11

N/A

57

passmark_directx_12

N/A

31

passmark_directx_9

N/A

125

passmark_g2d

N/A

490

passmark_g3d

N/A

7,338

passmark_gpu_compute

N/A

2,816

DETAILED SPECIFICATIONS

SPECIFICATION

660M

GTX 980M

Core Specs

Shading Units

384

1,536 +300.0%

Shaders

384

1,536 +300.0%

TMUs

24

96 +300.0%

ROPs

16

64 +300.0%

Compute Units

6

—

Clocks

Base Clock

1500 MHz

1038 MHz

Boost Clock

1900 MHz

1127 MHz

Memory Clock

System Shared

1253 MHz 5 Gbps effective

Memory

Memory Size

System Shared

8 GB

VRAM (MB)

—

8,192

Memory Type

System Shared

GDDR5

Memory Bus

System Shared

256 bit

Bandwidth

System Dependent

160.4 GB/s

Cache

L1 Cache

128 KB per Array

48 KB (per SMM)

L2 Cache

2 MB

2 MB

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

30.40 GPixel/s

72.13 GPixel/s

Texture Rate

45.60 GTexel/s

108.2 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

3.462 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

108.2 GFLOPS (1:32)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

—

AI/RT

RT Cores

6

—

Power

TDP

40 W

—

TDP (W)

40

—

Power Connectors

None

None

Architecture

Architecture

RDNA 2.0

Maxwell 2.0

GPU Name

Rembrandt

GM204

Generation

Navi II IGP (Rembrandt Mobile)

GeForce 900M

Process Size

6 nm

28 nm

Transistors

13,100 million

5,200 million

Die Size

208 mm²

398 mm²

Foundry

TSMC

TSMC

Density

63.0M / mm²

13.1M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 (12_1)

OpenGL

4.6

4.6

Vulkan

1.4

1.4

OpenCL

2.0

3.0

CUDA

—

5.2

Shader Model

6.8

6.8

Physical

Slot Width

IGP

MXM Module

Outputs

Portable Device Dependent

Portable Device Dependent

Bus Interface

PCIe 4.0 x8

MXM-B (3.0)

Other

Production

End-of-life

End-of-life

Predecessor

Vega II IGP

GeForce 800M

Successor

Navi III IGP

GeForce 10 Mobile

View Radeon 660M Details View GeForce GTX 980M Details