AMD Radeon RX 6600S vs NVIDIA GeForce 940A

VS

AMD Radeon RX 6600S

NVIDIA GeForce 940A

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6600S and 1024MB VRAM GeForce 940A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600S 's Advantages

Released 6 years and 10 months late

Boost Clock has increased by 78% (2000MHz vs 1124MHz)

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (224.0GB/s vs 16.02GB/s)

1408 additional rendering cores

NVIDIA GeForce 940A 's Advantages

Lower TDP (33W vs 80W)

Score

Benchmark

FP32 (float)

Radeon RX 6600S +730%

7.168 TFLOPS

GeForce 940A

0.863 TFLOPS

Radeon RX 6600S

VS

GeForce 940A

Graphics Card

Jan 2022

Release Date

Mar 2015

Mobility Radeon

Generation

GeForce 900A

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1700 MHz

Base Clock

1029 MHz

2000 MHz

Boost Clock

1124 MHz

1750 MHz

Memory Clock

1001 MHz

Memory

4GB

Memory Size

1024MB

GDDR6

Memory Type

DDR3

128bit

Memory Bus

64bit

224.0GB/s

Bandwidth

16.02GB/s

Render Config

28

Compute Units

-

1792

Shading Units

384

112

TMUs

16

64

ROPs

8

-

28

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SMM)

2 MB

L2 Cache

1024 KB

32 MB

L3 Cache

-

Theoretical Performance

128.0 GPixel/s

Pixel Rate

8.992 GPixel/s

224.0 GTexel/s

Texture Rate

17.98 GTexel/s

14.34 TFLOPS

FP16 (half)

-

7.168 TFLOPS

FP32 (float)

863.2 GFLOPS

448.0 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

80W

TDP

33W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 23

GPU Name

GM108

-

RDNA 2.0

Architecture

Maxwell

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

Unknown

237 mm²

Die Size

Unknown

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

5.0

6.5

Shader Model

5.1

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