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 VII

CORE STATE Vega 20

VRAM 16 GB

CLOCK SPEED 1750 MHz

TDP 295 W

BUS WIDTH 4096 bit

ARCHITECTURE GCN 5.1

nm

PROCESS 7 nm

LAUNCH DATE 2019

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

91,947

geekbench_vulkan

14,748

85,909

3dmark_3dmark_steel_nomad_dx12

N/A

2,304

geekbench_metal

N/A

77,265

DETAILED SPECIFICATIONS

SPECIFICATION

660M

VII

Core Specs

Shading Units

384

3,840 +900.0%

Shaders

384

3,840 +900.0%

TMUs

24

240 +900.0%

ROPs

16

64 +300.0%

Compute Units

6

60 +900.0%

Clocks

Base Clock

1500 MHz

1400 MHz

Boost Clock

1900 MHz

1750 MHz

Memory Clock

System Shared

1000 MHz 2 Gbps effective

Memory

Memory Size

System Shared

16 GB

VRAM (MB)

—

16,384

Memory Type

System Shared

HBM2

Memory Bus

System Shared

4096 bit

Bandwidth

System Dependent

1.02 TB/s

Cache

L1 Cache

128 KB per Array

16 KB (per CU)

L2 Cache

2 MB

4 MB

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

30.40 GPixel/s

112.0 GPixel/s

Texture Rate

45.60 GTexel/s

420.0 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

13.44 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

3.360 TFLOPS (1:4)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

26.88 TFLOPS (2:1)

AI/RT

RT Cores

6

—

Power

TDP

40 W

295 W

TDP (W)

40

295 +637.5%

Suggested PSU

—

600 W

Power Connectors

None

2x 8-pin

Architecture

Architecture

RDNA 2.0

GCN 5.1

GPU Name

Rembrandt

Vega 20

Generation

Navi II IGP (Rembrandt Mobile)

Vega II (Radeon VII)

Process Size

6 nm

7 nm

Transistors

13,100 million

13,230 million

Die Size

208 mm²

331 mm²

Foundry

TSMC

TSMC

Density

63.0M / mm²

40.0M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 (12_1)

OpenGL

4.6

4.6

Vulkan

1.4

1.3

OpenCL

2.0

2.1

Shader Model

6.8

6.7

Physical

Slot Width

IGP

Dual-slot

Length

—

280 mm 11 inches

Height

—

125 mm 4.9 inches

Outputs

Portable Device Dependent

1x HDMI 2.0b3x DisplayPort 1.4a

Bus Interface

PCIe 4.0 x8

PCIe 3.0 x16

Other

Launch Price

—

699 USD

Production

End-of-life

End-of-life

Predecessor

Vega II IGP

Vega

Successor

Navi III IGP

Navi

View Radeon 660M Details View Radeon VII Details