NVIDIA GeForce GTX 850M vs AMD Radeon R9 M385

VS

NVIDIA GeForce GTX 850M

AMD Radeon R9 M385

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850M and 4GB VRAM Radeon R9 M385 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M385 's Advantages

Released 1 years and 2 months late

Boost Clock1000MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (76.80GB/s vs 32.03GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 850M

1.155 TFLOPS

Radeon R9 M385 +55%

1.792 TFLOPS

GeForce GTX 850M

VS

Radeon R9 M385

Graphics Card

Mar 2014

Release Date

May 2015

GeForce 800M

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

1000 MHz

1001 MHz

Memory Clock

1200 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

32.03GB/s

Bandwidth

76.80GB/s

Render Config

-

Compute Units

14

-

640

Shading Units

896

40

TMUs

56

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

14.43 GPixel/s

Pixel Rate

16.00 GPixel/s

36.08 GTexel/s

Texture Rate

56.00 GTexel/s

-

1155 GFLOPS

FP32 (float)

1.792 TFLOPS

36.08 GFLOPS

FP64 (double)

112.0 GFLOPS

Board Design

45W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GM107

GPU Name

Strato

N15P-GT-A1

GPU Variant

Strato XT

Maxwell

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

2.08 billion

148 mm²

Die Size

160 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2.170

5.0

CUDA

-

5.1

Shader Model

6.5

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