AMD Radeon R9 M385X vs NVIDIA GeForce GTX 980M

VS

AMD Radeon R9 M385X

NVIDIA GeForce GTX 980M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385X and 8GB VRAM GeForce GTX 980M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M385X 's Advantages

Released 7 months late

NVIDIA GeForce GTX 980M 's Advantages

Boost Clock has increased by 2% (1127MHz vs 1100MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (160.4GB/s vs 76.80GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M385X

1.971 TFLOPS

GeForce GTX 980M +75%

3.462 TFLOPS

Radeon R9 M385X

VS

GeForce GTX 980M

Graphics Card

May 2015

Release Date

Oct 2014

Gem System

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1000 MHz

Base Clock

1038 MHz

1100 MHz

Boost Clock

1127 MHz

1200 MHz

Memory Clock

1253 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

76.80GB/s

Bandwidth

160.4GB/s

Render Config

14

Compute Units

-

896

Shading Units

1536

56

TMUs

96

16

ROPs

64

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

17.60 GPixel/s

Pixel Rate

72.13 GPixel/s

61.60 GTexel/s

Texture Rate

108.2 GTexel/s

-

1.971 TFLOPS

FP32 (float)

3.462 TFLOPS

123.2 GFLOPS

FP64 (double)

108.2 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Strato

GPU Name

GM204

Strato XT

GPU Variant

N16E-GX-A1

GCN 2.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

5.2 billion

160 mm²

Die Size

398 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2.170

Vulkan

1.3

-

CUDA

5.2

6.5

Shader Model

6.7 (6.4)

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