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 9070 XT

CORE STATE Navi 48

VRAM 16 GB

CLOCK SPEED 2970 MHz

TDP 304 W

BUS WIDTH 256 bit

ARCHITECTURE RDNA 4.0

nm

PROCESS 4 nm

LAUNCH DATE 2025

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

160,317

geekbench_vulkan

14,748

184,026

3dmark_3dmark_steel_nomad_dx12

N/A

7,260

passmark_directx_10

N/A

154

passmark_directx_11

N/A

292

passmark_directx_12

N/A

78

passmark_directx_9

N/A

353

passmark_g2d

N/A

1,328

passmark_g3d

N/A

26,795

passmark_gpu_compute

N/A

15,864

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RX 9070 XT

Core Specs

Shading Units

384

4,096 +966.7%

Shaders

384

4,096 +966.7%

TMUs

24

256 +966.7%

ROPs

16

128 +700.0%

Compute Units

6

64 +966.7%

Clocks

Base Clock

1500 MHz

1660 MHz

Boost Clock

1900 MHz

2970 MHz

Game Clock

—

2400 MHz

Memory Clock

System Shared

2518 MHz 20.1 Gbps effective

Memory

Memory Size

System Shared

16 GB

VRAM (MB)

—

16,384

Memory Type

System Shared

GDDR6

Memory Bus

System Shared

256 bit

Bandwidth

System Dependent

644.6 GB/s

Cache

L1 Cache

128 KB per Array

—

L2 Cache

2 MB

8 MB

L3 Cache

—

64 MB

L0 Cache

32 KB per WGP

32 KB per WGP

Performance

Pixel Rate

30.40 GPixel/s

380.2 GPixel/s

Texture Rate

45.60 GTexel/s

760.3 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

48.66 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

1.521 TFLOPS (1:32)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

97.32 TFLOPS (2:1)

AI/RT

RT Cores

6

64 +966.7%

Matrix Cores

—

128

Power

TDP

40 W

304 W

TDP (W)

40

304 +660.0%

Suggested PSU

—

700 W

Power Connectors

None

2x 8-pin

Architecture

Architecture

RDNA 2.0

RDNA 4.0

GPU Name

Rembrandt

Navi 48

Generation

Navi II IGP (Rembrandt Mobile)

Navi IV (RX 9000)

Process Size

6 nm

4 nm

Transistors

13,100 million

53,900 million

Die Size

208 mm²

357 mm²

Foundry

TSMC

TSMC

Density

63.0M / mm²

151.0M / 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 2.1b3x DisplayPort 2.1a

Bus Interface

PCIe 4.0 x8

PCIe 5.0 x16

Other

Launch Price

—

599 USD

Production

End-of-life

Active

Predecessor

Vega II IGP

Navi III

Successor

Navi III IGP

—

View Radeon 660M Details View Radeon RX 9070 XT Details