NVIDIA GeForce GTX 675MX vs AMD Radeon R9 M390 Mac Edition

VS

NVIDIA GeForce GTX 675MX

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 675MX 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

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 2 years and 7 months late

Larger VRAM bandwidth (174.7GB/s vs 115.2GB/s)

64 additional rendering cores

Lower TDP (80W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 675MX

1.256 TFLOPS

Radeon R9 M390 Mac Edition +56%

1.962 TFLOPS

GeForce GTX 675MX

VS

Radeon R9 M390 Mac Edition

Graphics Card

Oct 2012

Release Date

May 2015

GeForce 600M

Generation

Crystal System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1365 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

174.7GB/s

Render Config

-

Compute Units

16

-

960

Shading Units

1024

80

TMUs

64

32

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

13.08 GPixel/s

Pixel Rate

30.66 GPixel/s

52.32 GTexel/s

Texture Rate

61.31 GTexel/s

-

1256 GFLOPS

FP32 (float)

1.962 TFLOPS

52.32 GFLOPS

FP64 (double)

122.6 GFLOPS

Board Design

100W

TDP

80W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GK104

GPU Name

Pitcairn

N13E-GSR-A2

GPU Variant

Pitcairn PRO (215-0828062)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

2.8 billion

294 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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