AMD Radeon R9 M390 Mac Edition vs NVIDIA GeForce 825M

VS

AMD Radeon R9 M390 Mac Edition

NVIDIA GeForce 825M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 1024MB VRAM GeForce 825M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 1 years and 4 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (174.7GB/s vs 14.40GB/s)

640 additional rendering cores

NVIDIA GeForce 825M 's Advantages

Boost Clock941MHz

Lower TDP (33W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition +171%

1.962 TFLOPS

GeForce 825M

0.723 TFLOPS

Radeon R9 M390 Mac Edition

VS

GeForce 825M

Graphics Card

May 2015

Release Date

Jan 2014

Crystal System

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

941 MHz

1365 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

174.7GB/s

Bandwidth

14.40GB/s

Render Config

16

Compute Units

-

1024

Shading Units

384

64

TMUs

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

30.66 GPixel/s

Pixel Rate

7.528 GPixel/s

61.31 GTexel/s

Texture Rate

30.11 GTexel/s

-

1.962 TFLOPS

FP32 (float)

722.7 GFLOPS

122.6 GFLOPS

FP64 (double)

30.11 GFLOPS

Board Design

80W

TDP

33W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

GK208

Pitcairn PRO (215-0828062)

GPU Variant

-

GCN 1.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.02 billion

212 mm²

Die Size

87 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.5

5.1

Shader Model

5.1

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