AMD Radeon Pro 555X vs NVIDIA GeForce 945A

VS

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X and 1024MB VRAM GeForce 945A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555X 's Advantages

Released 3 years and 4 months late

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (94.08GB/s vs 40.10GB/s)

384 additional rendering cores

NVIDIA GeForce 945A 's Advantages

Boost Clock1189MHz

Lower TDP (33W vs 75W)

Score

Benchmark

FP32 (float)

Radeon Pro 555X +52%

1.393 TFLOPS

GeForce 945A

0.913 TFLOPS

Radeon Pro 555X

VS

GeForce 945A

Graphics Card

Jul 2018

Release Date

Mar 2015

Radeon Pro Mac

Generation

GeForce 900A

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1006 MHz

-

Boost Clock

1189 MHz

1470 MHz

Memory Clock

1253 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

94.08GB/s

Bandwidth

40.10GB/s

Render Config

-

SM Count

-

12

Compute Units

-

768

Shading Units

384

48

TMUs

24

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

1024 KB

L2 Cache

1024 KB

Theoretical Performance

14.51 GPixel/s

Pixel Rate

9.512 GPixel/s

43.54 GTexel/s

Texture Rate

28.54 GTexel/s

1393 GFLOPS

FP16 (half)

-

1393 GFLOPS

FP32 (float)

913.2 GFLOPS

87.07 GFLOPS

FP64 (double)

28.54 GFLOPS

Graphics Processor

Polaris 21

GPU Name

GM108

Polaris 21 PRO

GPU Variant

-

GCN 4.0

Architecture

Maxwell

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

Unknown

123 mm²

Die Size

Unknown

Board Design

75W

TDP

33W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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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