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 5500 XT

CORE STATE Navi 14

VRAM 4 GB

CLOCK SPEED 1845 MHz

TDP 130 W

BUS WIDTH 128 bit

ARCHITECTURE RDNA 1.0

nm

PROCESS 7 nm

LAUNCH DATE 2019

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

44,625

geekbench_vulkan

14,748

42,120

3dmark_3dmark_steel_nomad_dx12

N/A

1,032

geekbench_metal

N/A

55,926

passmark_directx_10

N/A

46

passmark_directx_11

N/A

56

passmark_directx_12

N/A

40

passmark_directx_9

N/A

133

passmark_g2d

N/A

774

passmark_g3d

N/A

9,083

passmark_gpu_compute

N/A

4,446

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RX 5500 XT

Core Specs

Shading Units

384

1,408 +266.7%

Shaders

384

1,408 +266.7%

TMUs

24

88 +266.7%

ROPs

16

32 +100.0%

Compute Units

6

22 +266.7%

Clocks

Base Clock

1500 MHz

1607 MHz

Boost Clock

1900 MHz

1845 MHz

Game Clock

—

1717 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

—

L2 Cache

2 MB

2 MB

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

30.40 GPixel/s

59.04 GPixel/s

Texture Rate

45.60 GTexel/s

162.4 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

5.196 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

324.7 GFLOPS (1:16)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

10.39 TFLOPS (2:1)

AI/RT

RT Cores

6

—

Power

TDP

40 W

130 W

TDP (W)

40

130 +225.0%

Suggested PSU

—

300 W

Power Connectors

None

1x 8-pin

Architecture

Architecture

RDNA 2.0

RDNA 1.0

GPU Name

Rembrandt

Navi 14

Generation

Navi II IGP (Rembrandt Mobile)

Navi (RX 5000)

Process Size

6 nm

7 nm

Transistors

13,100 million

6,400 million

Die Size

208 mm²

158 mm²

Foundry

TSMC

TSMC

Density

63.0M / mm²

40.5M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 (12_1)

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

Dual-slot

Length

—

180 mm 7.1 inches

Outputs

Portable Device Dependent

1x HDMI 2.0b3x DisplayPort 1.4a

Bus Interface

PCIe 4.0 x8

PCIe 4.0 x8

Other

Launch Price

—

169 USD

Production

End-of-life

End-of-life

Predecessor

Vega II IGP

Vega

Successor

Navi III IGP

Navi II

View Radeon 660M Details View Radeon RX 5500 XT Details