AMD Radeon R9 M390 Mac Edition vs NVIDIA GeForce GTX 880M

VS

AMD Radeon R9 M390 Mac Edition

NVIDIA GeForce GTX 880M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 8GB VRAM GeForce GTX 880M 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 1 years and 2 months late

Larger VRAM bandwidth (174.7GB/s vs 160.0GB/s)

Lower TDP (80W vs 122W)

NVIDIA GeForce GTX 880M 's Advantages

Boost Clock993MHz

More VRAM (8GB vs 2GB)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition

1.962 TFLOPS

GeForce GTX 880M +55%

3.05 TFLOPS

Radeon R9 M390 Mac Edition

VS

GeForce GTX 880M

Graphics Card

May 2015

Release Date

Mar 2014

Crystal System

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

954 MHz

-

Boost Clock

993 MHz

1365 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

174.7GB/s

Bandwidth

160.0GB/s

Render Config

16

Compute Units

-

1024

Shading Units

1536

64

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

30.66 GPixel/s

Pixel Rate

31.78 GPixel/s

61.31 GTexel/s

Texture Rate

127.1 GTexel/s

-

1.962 TFLOPS

FP32 (float)

3.050 TFLOPS

122.6 GFLOPS

FP64 (double)

127.1 GFLOPS

Board Design

80W

TDP

122W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

GK104

Pitcairn PRO (215-0828062)

GPU Variant

N15E-GX-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

3.54 billion

212 mm²

Die Size

294 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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