NVIDIA GeForce GTX 870M vs AMD Radeon R9 M385

VS

NVIDIA GeForce GTX 870M

AMD Radeon R9 M385

We compared two Mobile platform GPUs: 3GB VRAM GeForce GTX 870M and 4GB VRAM Radeon R9 M385 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 870M 's Advantages

Larger VRAM bandwidth (120.0GB/s vs 76.80GB/s)

448 additional rendering cores

AMD Radeon R9 M385 's Advantages

Released 1 years and 2 months late

Boost Clock has increased by 3% (1000MHz vs 967MHz)

More VRAM (4GB vs 3GB)

Score

Benchmark

FP32 (float)

GeForce GTX 870M +45%

2.599 TFLOPS

Radeon R9 M385

1.792 TFLOPS

GeForce GTX 870M

VS

Radeon R9 M385

Graphics Card

Mar 2014

Release Date

May 2015

GeForce 800M

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

941 MHz

Base Clock

900 MHz

967 MHz

Boost Clock

1000 MHz

1250 MHz

Memory Clock

1200 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

120.0GB/s

Bandwidth

76.80GB/s

Render Config

-

Compute Units

14

-

1344

Shading Units

896

112

TMUs

56

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

27.08 GPixel/s

Pixel Rate

16.00 GPixel/s

108.3 GTexel/s

Texture Rate

56.00 GTexel/s

-

2.599 TFLOPS

FP32 (float)

1.792 TFLOPS

108.3 GFLOPS

FP64 (double)

112.0 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

Strato

N15E-GT-A2

GPU Variant

Strato XT

Kepler

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

2.08 billion

294 mm²

Die Size

160 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.2.170

3.0

CUDA

-

5.1

Shader Model

6.5

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