NVIDIA GeForce GT 650M vs AMD Radeon R9 M390 Mac Edition

VS

NVIDIA GeForce GT 650M

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 650M and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 650M 's Advantages

Boost Clock950MHz

Lower TDP (45W vs 80W)

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 3 years and 2 months late

More VRAM (2GB vs 1024GB)

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

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 650M

0.73 TFLOPS

Radeon R9 M390 Mac Edition +168%

1.962 TFLOPS

GeForce GT 650M

VS

Radeon R9 M390 Mac Edition

Graphics Card

Mar 2012

Release Date

May 2015

GeForce 600M

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

835 MHz

Base Clock

-

950 MHz

Boost Clock

-

900 MHz

Memory Clock

1365 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

174.7GB/s

Render Config

-

Compute Units

16

-

384

Shading Units

1024

32

TMUs

64

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

7.600 GPixel/s

Pixel Rate

30.66 GPixel/s

30.40 GTexel/s

Texture Rate

61.31 GTexel/s

-

729.6 GFLOPS

FP32 (float)

1.962 TFLOPS

30.40 GFLOPS

FP64 (double)

122.6 GFLOPS

Board Design

45W

TDP

80W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GK107

GPU Name

Pitcairn

N13P-GT-A2

GPU Variant

Pitcairn PRO (215-0828062)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

2.8 billion

118 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

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