NVIDIA GeForce GTX 860M vs AMD Radeon R9 M390 Mac Edition

VS

NVIDIA GeForce GTX 860M

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 860M 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 GTX 860M 's Advantages

Boost Clock1085MHz

More VRAM (4GB vs 2GB)

Lower TDP (75W vs 80W)

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 1 years and 4 months late

Larger VRAM bandwidth (174.7GB/s vs 80.19GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 860M

1.389 TFLOPS

Radeon R9 M390 Mac Edition +41%

1.962 TFLOPS

GeForce GTX 860M

VS

Radeon R9 M390 Mac Edition

Graphics Card

Jan 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

1020 MHz

Base Clock

-

1085 MHz

Boost Clock

-

1253 MHz

Memory Clock

1365 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

80.19GB/s

Bandwidth

174.7GB/s

Render Config

-

Compute Units

16

-

640

Shading Units

1024

40

TMUs

64

16

ROPs

32

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

17.36 GPixel/s

Pixel Rate

30.66 GPixel/s

43.40 GTexel/s

Texture Rate

61.31 GTexel/s

-

1389 GFLOPS

FP32 (float)

1.962 TFLOPS

43.40 GFLOPS

FP64 (double)

122.6 GFLOPS

Board Design

75W

TDP

80W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GM107

GPU Name

Pitcairn

N15P-GX-A1

GPU Variant

Pitcairn PRO (215-0828062)

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

2.8 billion

148 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

5.1

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