AMD Radeon R9 M390 Mac Edition vs NVIDIA GeForce GT 555M

VS

AMD Radeon R9 M390 Mac Edition

NVIDIA GeForce GT 555M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 2GB VRAM GeForce GT 555M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 3 years and 2 months late

Larger VRAM bandwidth (174.7GB/s vs 28.80GB/s)

880 additional rendering cores

NVIDIA GeForce GT 555M 's Advantages

Lower TDP (35W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition +404%

1.962 TFLOPS

GeForce GT 555M

0.389 TFLOPS

Radeon R9 M390 Mac Edition

VS

GeForce GT 555M

Graphics Card

May 2015

Release Date

Mar 2012

Crystal System

Generation

GeForce 500M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1365 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

174.7GB/s

Bandwidth

28.80GB/s

Render Config

16

Compute Units

-

SM Count

2

1024

Shading Units

144

64

TMUs

24

32

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

30.66 GPixel/s

Pixel Rate

2.700 GPixel/s

61.31 GTexel/s

Texture Rate

16.20 GTexel/s

-

1.962 TFLOPS

FP32 (float)

388.8 GFLOPS

122.6 GFLOPS

FP64 (double)

32.40 GFLOPS

Board Design

80W

TDP

35W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Pitcairn

GPU Name

GF116

Pitcairn PRO (215-0828062)

GPU Variant

N12E-GE2-A1

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

1.17 billion

212 mm²

Die Size

238 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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