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

NVIDIA

GEFORCE

GeForce RTX 5090 D

CORE STATE GB202

VRAM 32 GB

CLOCK SPEED 2407 MHz

TDP 575 W

BUS WIDTH 512 bit

ARCHITECTURE Blackwell 2.0

nm

PROCESS 5 nm

LAUNCH DATE 2025

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

375,966

geekbench_vulkan

14,748

376,915

3dmark_3dmark_steel_nomad_dx12

N/A

14,326

passmark_directx_10

N/A

231

passmark_directx_11

N/A

371

passmark_directx_12

N/A

219

passmark_directx_9

N/A

434

passmark_g2d

N/A

1,487

passmark_g3d

N/A

44,065

passmark_gpu_compute

N/A

28,396

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RTX 5090 D

Core Specs

Shading Units

384

21,760 +5566.7%

Shaders

384

21,760 +5566.7%

TMUs

24

680 +2733.3%

ROPs

16

176 +1000.0%

Compute Units

6

—

SM Count

—

170

Clocks

Base Clock

1500 MHz

2017 MHz

Boost Clock

1900 MHz

2407 MHz

Memory Clock

System Shared

1750 MHz 28 Gbps effective

Memory

Memory Size

System Shared

32 GB

VRAM (MB)

—

32,768

Memory Type

System Shared

GDDR7

Memory Bus

System Shared

512 bit

Bandwidth

System Dependent

1.79 TB/s

Cache

L1 Cache

128 KB per Array

128 KB (per SM)

L2 Cache

2 MB

96 MB

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

30.40 GPixel/s

423.6 GPixel/s

Texture Rate

45.60 GTexel/s

1,636.8 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

104.8 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

1.637 TFLOPS (1:64)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

104.8 TFLOPS (1:1)

AI/RT

RT Cores

6

170 +2733.3%

Tensor Cores

—

680

Power

TDP

40 W

575 W

TDP (W)

40

575 +1337.5%

Suggested PSU

—

950 W

Power Connectors

None

1x 16-pin

Architecture

Architecture

RDNA 2.0

Blackwell 2.0

GPU Name

Rembrandt

GB202

Generation

Navi II IGP (Rembrandt Mobile)

GeForce 50

Process Size

6 nm

5 nm

Transistors

13,100 million

92,200 million

Die Size

208 mm²

750 mm²

Foundry

TSMC

TSMC

Density

63.0M / mm²

122.9M / 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

3.0

CUDA

—

12.0

Shader Model

6.8

6.8

Physical

Slot Width

IGP

Dual-slot

Length

—

304 mm 12 inches

Height

—

137 mm 5.4 inches

Outputs

Portable Device Dependent

1x HDMI 2.1b3x DisplayPort 2.1b

Bus Interface

PCIe 4.0 x8

PCIe 5.0 x16

Other

Launch Price

—

2,299 USD

Production

End-of-life

Active

Predecessor

Vega II IGP

GeForce 40

Successor

Navi III IGP

—

View Radeon 660M Details View GeForce RTX 5090 D Details