NVIDIA GeForce 8400M GT vs AMD Radeon R9 M390 Mac Edition

VS

NVIDIA GeForce 8400M GT AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM GeForce 8400M GT and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400M GT 's Advantages

Lower TDP (14W vs 80W)

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 8 years late

Larger VRAM bandwidth (174.7GB/s vs 19.20GB/s)

1008 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400M GT

0.029 TFLOPS

Radeon R9 M390 Mac Edition +6665%

1.962 TFLOPS

GeForce 8400M GT

VS

Radeon R9 M390 Mac Edition

Graphics Card

May 2007

Release Date

May 2015

GeForce 8M

Generation

Crystal System

Mobile

Type

Mobile

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

600 MHz

Memory Clock

1365 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

19.20GB/s

Bandwidth

174.7GB/s

Render Config

2

SM Count

-

Compute Units

16

Shading Units

1024

8

TMUs

64

4

ROPs

32

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per CU)

32 KB

L2 Cache

512 KB

Theoretical Performance

1.800 GPixel/s

Pixel Rate

30.66 GPixel/s

3.600 GTexel/s

Texture Rate

61.31 GTexel/s

-

FP16 (half)

-

28.80 GFLOPS

FP32 (float)

1.962 TFLOPS

-

FP64 (double)

122.6 GFLOPS

Graphics Processor

G86

GPU Name

Pitcairn

G86-603-A2

GPU Variant

Pitcairn PRO (215-0828062)

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.21 billion

Transistors

2.8 billion

127 mm²

Die Size

212 mm²

Board Design

14W

TDP

80W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.1

CUDA

-

4.0

Shader Model

5.1

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