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 7900 XTX

CORE STATE Navi 31

VRAM 24 GB

CLOCK SPEED 2498 MHz

TDP 355 W

BUS WIDTH 384 bit

ARCHITECTURE RDNA 3.0

nm

PROCESS 5 nm

LAUNCH DATE 2022

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

189,573

geekbench_vulkan

14,748

192,597

3dmark_3dmark_steel_nomad_dx12

N/A

6,841

passmark_directx_10

N/A

166

passmark_directx_11

N/A

356

passmark_directx_12

N/A

131

passmark_directx_9

N/A

330

passmark_g2d

N/A

1,267

passmark_g3d

N/A

31,238

passmark_gpu_compute

N/A

17,689

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RX 7900 XTX

Core Specs

Shading Units

384

6,144 +1500.0%

Shaders

384

6,144 +1500.0%

TMUs

24

384 +1500.0%

ROPs

16

192 +1100.0%

Compute Units

6

96 +1500.0%

Clocks

Base Clock

1500 MHz

1929 MHz

Boost Clock

1900 MHz

2498 MHz

Game Clock

—

2365 MHz

Shader Clock

—

2269 MHz

Memory Clock

System Shared

2500 MHz 20 Gbps effective

Memory

Memory Size

System Shared

24 GB

VRAM (MB)

—

24,576

Memory Type

System Shared

GDDR6

Memory Bus

System Shared

384 bit

Bandwidth

System Dependent

960.0 GB/s

Cache

L1 Cache

128 KB per Array

256 KB per Array

L2 Cache

2 MB

6 MB

L3 Cache

—

96 MB

L0 Cache

32 KB per WGP

64 KB per WGP

Performance

Pixel Rate

30.40 GPixel/s

479.6 GPixel/s

Texture Rate

45.60 GTexel/s

959.2 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

61.39 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

1.918 TFLOPS (1:32)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

122.8 TFLOPS (2:1)

AI/RT

RT Cores

6

96 +1500.0%

Matrix Cores

—

192

Power

TDP

40 W

355 W

TDP (W)

40

355 +787.5%

Suggested PSU

—

750 W

Power Connectors

None

2x 8-pin

Architecture

Architecture

RDNA 2.0

RDNA 3.0

GPU Name

Rembrandt

Navi 31

Codename

—

Plum Bonito

Generation

Navi II IGP (Rembrandt Mobile)

Navi III (RX 7000)

Process Size

6 nm

5 nm

Transistors

13,100 million

57,700 million

Die Size

208 mm²

529 mm²

Foundry

TSMC

TSMC

Density

63.0M / mm²

109.1M / mm²

AMD MCM

GCD Transistors

—

45,400 million

GCD Die Size

—

304.35 mm²

MCD Transistors

—

2,050 million x6

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

Length

—

287 mm 11.3 inches

Height

—

110 mm 4.3 inches

Outputs

Portable Device Dependent

1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C

Bus Interface

PCIe 4.0 x8

PCIe 4.0 x16

Other

Launch Price

—

999 USD

Production

End-of-life

End-of-life

Predecessor

Vega II IGP

Navi II

Successor

Navi III IGP

Navi IV

View Radeon 660M Details View Radeon RX 7900 XTX Details