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

RTX A4500

CORE STATE GA102

VRAM 20 GB

CLOCK SPEED 1650 MHz

TDP 200 W

BUS WIDTH 320 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

geekbench_opencl

12,876

141,837

geekbench_vulkan

14,748

131,402

3dmark_3dmark_steel_nomad_dx12

N/A

3,196

DETAILED SPECIFICATIONS

SPECIFICATION

660M

RTX A4500

Core Specs

Shading Units

384

7,168 +1766.7%

Shaders

384

7,168 +1766.7%

TMUs

24

224 +833.3%

ROPs

16

96 +500.0%

Compute Units

6

—

SM Count

—

56

Clocks

Base Clock

1500 MHz

1050 MHz

Boost Clock

1900 MHz

1650 MHz

Memory Clock

System Shared

2000 MHz 16 Gbps effective

Memory

Memory Size

System Shared

20 GB

VRAM (MB)

—

20,480

Memory Type

System Shared

GDDR6

Memory Bus

System Shared

320 bit

Bandwidth

System Dependent

640.0 GB/s

Cache

L1 Cache

128 KB per Array

128 KB (per SM)

L2 Cache

2 MB

6 MB

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

30.40 GPixel/s

158.4 GPixel/s

Texture Rate

45.60 GTexel/s

369.6 GTexel/s

FP32 (TFLOPS)

1,459.2 GFLOPS

23.65 TFLOPS

FP64 (TFLOPS)

91.20 GFLOPS (1:16)

369.6 GFLOPS (1:64)

FP16 (TFLOPS)

2.918 TFLOPS (2:1)

23.65 TFLOPS (1:1)

AI/RT

RT Cores

6

56 +833.3%

Tensor Cores

—

224

Power

TDP

40 W

200 W

TDP (W)

40

200 +400.0%

Suggested PSU

—

550 W

Power Connectors

None

1x 8-pin

Architecture

Architecture

RDNA 2.0

Ampere

GPU Name

Rembrandt

GA102

Generation

Navi II IGP (Rembrandt Mobile)

Workstation Ampere (Ax000)

Process Size

6 nm

8 nm

Transistors

13,100 million

28,300 million

Die Size

208 mm²

628 mm²

Foundry

TSMC

Samsung

Density

63.0M / mm²

45.1M / 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

—

8.6

Shader Model

6.8

6.8

Physical

Slot Width

IGP

Dual-slot

Length

—

267 mm 10.5 inches

Height

—

112 mm 4.4 inches

Outputs

Portable Device Dependent

4x DisplayPort 1.4a

Bus Interface

PCIe 4.0 x8

PCIe 4.0 x16

Other

Production

End-of-life

End-of-life

Predecessor

Vega II IGP

Quadro Turing

Successor

Navi III IGP

Workstation Ada

View Radeon 660M Details View RTX A4500 Details