NVIDIA GeForce GTX 880M vs AMD Radeon R9 M390X

VS

NVIDIA GeForce GTX 880M AMD Radeon R9 M390X

We compared two Mobile platform GPUs: 8GB VRAM GeForce GTX 880M and 4GB VRAM Radeon R9 M390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 880M 's Advantages

Boost Clock993MHz

More VRAM (8GB vs 4GB)

AMD Radeon R9 M390X 's Advantages

Released 1 years and 2 months late

512 additional rendering cores

Lower TDP (75W vs 122W)

Score

Benchmark

FP32 (float)

GeForce GTX 880M +3%

3.05 TFLOPS

Radeon R9 M390X

2.961 TFLOPS

GeForce GTX 880M

VS

Radeon R9 M390X

Graphics Card

Mar 2014

Release Date

May 2015

GeForce 800M

Generation

Crystal System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

954 MHz

Base Clock

-

993 MHz

Boost Clock

-

1250 MHz

Memory Clock

1250 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

160.0GB/s

Render Config

-

SM Count

-

Compute Units

32

1536

Shading Units

2048

128

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

Theoretical Performance

31.78 GPixel/s

Pixel Rate

23.14 GPixel/s

127.1 GTexel/s

Texture Rate

92.54 GTexel/s

-

FP16 (half)

2.961 TFLOPS

3.050 TFLOPS

FP32 (float)

2.961 TFLOPS

127.1 GFLOPS

FP64 (double)

185.1 GFLOPS

Graphics Processor

GK104

GPU Name

Amethyst

N15E-GX-A2

GPU Variant

Amethyst XT

Kepler

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

5 billion

294 mm²

Die Size

366 mm²

Board Design

122W

TDP

75W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.3

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