NVIDIA GeForce 825M vs AMD Radeon R9 M390X

VS

NVIDIA GeForce 825M

AMD Radeon R9 M390X

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 825M 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 825M 's Advantages

Boost Clock941MHz

Lower TDP (33W vs 75W)

AMD Radeon R9 M390X 's Advantages

Released 1 years and 4 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 14.40GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 825M

0.723 TFLOPS

Radeon R9 M390X +309%

2.961 TFLOPS

GeForce 825M

VS

Radeon R9 M390X

Graphics Card

Jan 2014

Release Date

May 2015

GeForce 800M

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

850 MHz

Base Clock

-

941 MHz

Boost Clock

-

900 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

4GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

32

-

384

Shading Units

2048

32

TMUs

128

8

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

7.528 GPixel/s

Pixel Rate

23.14 GPixel/s

30.11 GTexel/s

Texture Rate

92.54 GTexel/s

-

FP16 (half)

2.961 TFLOPS

722.7 GFLOPS

FP32 (float)

2.961 TFLOPS

30.11 GFLOPS

FP64 (double)

185.1 GFLOPS

Board Design

33W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GK208

GPU Name

Amethyst

-

GPU Variant

Amethyst XT

Kepler 2.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.02 billion

Transistors

5 billion

87 mm²

Die Size

366 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.1

Vulkan

1.2

3.5

CUDA

-

5.1

Shader Model

6.3

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