AMD Radeon 550X Mobile vs NVIDIA GeForce 945M

VS

AMD Radeon 550X Mobile

NVIDIA GeForce 945M

We compared two Mobile platform GPUs: 4GB VRAM Radeon 550X Mobile and 1024MB VRAM GeForce 945M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X Mobile 's Advantages

Released 2 years late

Boost Clock has increased by 8% (1287MHz vs 1189MHz)

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (48.00GB/s vs 16.02GB/s)

256 additional rendering cores

NVIDIA GeForce 945M 's Advantages

Lower TDP (23W vs 50W)

Score

Benchmark

FP32 (float)

Radeon 550X Mobile +80%

1.647 TFLOPS

GeForce 945M

0.913 TFLOPS

Radeon 550X Mobile

VS

GeForce 945M

Graphics Card

Apr 2018

Release Date

Apr 2016

Mobility Radeon

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1100 MHz

Base Clock

1006 MHz

1287 MHz

Boost Clock

1189 MHz

1500 MHz

Memory Clock

1001 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

64bit

48.00GB/s

Bandwidth

16.02GB/s

Render Config

10

Compute Units

-

640

Shading Units

384

40

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

20.59 GPixel/s

Pixel Rate

9.512 GPixel/s

51.48 GTexel/s

Texture Rate

28.54 GTexel/s

1.647 TFLOPS

FP16 (half)

-

1.647 TFLOPS

FP32 (float)

913.2 GFLOPS

103.0 GFLOPS

FP64 (double)

28.54 GFLOPS

Board Design

50W

TDP

23W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 23

GPU Name

GM108

Polaris 23 MXT

GPU Variant

-

GCN 4.0

Architecture

Maxwell

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

Unknown

103 mm²

Die Size

Unknown

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

6.4

Shader Model

5.1

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