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 6500 XT

CORE STATE Navi 24

VRAM 4 GB

CLOCK SPEED 2815 MHz

TDP 107 W

BUS WIDTH 64 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 6 nm

LAUNCH DATE 2022

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

48,915

geekbench_vulkan

14,748

54,648

3dmark_3dmark_steel_nomad_dx12

N/A

235

passmark_directx_10

N/A

60

passmark_directx_11

N/A

90

passmark_directx_12

N/A

38

passmark_directx_9

N/A

108

passmark_g2d

N/A

815

passmark_g3d

N/A

9,608

passmark_gpu_compute

N/A

4,456

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RX 6500 XT

Core Specs

Shading Units

384

1,024 +166.7%

Shaders

384

1,024 +166.7%

TMUs

24

64 +166.7%

ROPs

16

32 +100.0%

Compute Units

6

16 +166.7%

Clocks

Base Clock

1500 MHz

2310 MHz

Boost Clock

1900 MHz

2815 MHz

Game Clock

—

2610 MHz

Memory Clock

System Shared

2248 MHz 18 Gbps effective

Memory

Memory Size

System Shared

4 GB

VRAM (MB)

—

4,096

Memory Type

System Shared

GDDR6

Memory Bus

System Shared

64 bit

Bandwidth

System Dependent

143.9 GB/s

Cache

L1 Cache

128 KB per Array

128 KB per Array

L2 Cache

2 MB

1024 KB

L3 Cache

—

16 MB

L0 Cache

32 KB per WGP

32 KB per WGP

Performance

Pixel Rate

30.40 GPixel/s

90.08 GPixel/s

Texture Rate

45.60 GTexel/s

180.2 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

5.765 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

360.3 GFLOPS (1:16)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

11.53 TFLOPS (2:1)

AI/RT

RT Cores

6

16 +166.7%

Power

TDP

40 W

107 W

TDP (W)

40

107 +167.5%

Suggested PSU

—

300 W

Power Connectors

None

1x 6-pin

Architecture

Architecture

RDNA 2.0

RDNA 2.0

GPU Name

Rembrandt

Navi 24

Generation

Navi II IGP (Rembrandt Mobile)

Navi II (RX 6000)

Process Size

6 nm

6 nm

Transistors

13,100 million

5,400 million

Die Size

208 mm²

107 mm²

Foundry

TSMC

TSMC

Density

63.0M / mm²

50.5M / 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

2.2

Shader Model

6.8

6.8

Physical

Slot Width

IGP

Dual-slot

Outputs

Portable Device Dependent

1x HDMI 2.11x DisplayPort 1.4a

Bus Interface

PCIe 4.0 x8

PCIe 4.0 x4

Other

Launch Price

—

199 USD

Production

End-of-life

End-of-life

Predecessor

Vega II IGP

Navi

Successor

Navi III IGP

Navi III

View Radeon 660M Details View Radeon RX 6500 XT Details