AMD Radeon R9 M290X Mac Edition vs NVIDIA GeForce 8400M GT

VS

AMD Radeon R9 M290X Mac Edition

NVIDIA GeForce 8400M GT

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M290X Mac Edition and 512MB VRAM GeForce 8400M GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M290X Mac Edition 's Advantages

Released 7 years and 6 months late

Boost Clock975MHz

More VRAM (2GB vs 512GB)

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

1008 additional rendering cores

NVIDIA GeForce 8400M GT 's Advantages

Lower TDP (14W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R9 M290X Mac Edition +6786%

1.997 TFLOPS

GeForce 8400M GT

0.029 TFLOPS

Radeon R9 M290X Mac Edition

VS

GeForce 8400M GT

Graphics Card

Nov 2014

Release Date

May 2007

Crystal System

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

850 MHz

Base Clock

-

975 MHz

Boost Clock

-

1365 MHz

Memory Clock

600 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

174.7GB/s

Bandwidth

19.20GB/s

Render Config

16

Compute Units

-

SM Count

2

1024

Shading Units

16

64

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

1.800 GPixel/s

62.40 GTexel/s

Texture Rate

3.600 GTexel/s

-

1.997 TFLOPS

FP32 (float)

28.80 GFLOPS

124.8 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

14W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Pitcairn

GPU Name

G86

Pitcairn PRO (215-0828062)

GPU Variant

G86-603-A2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

2.8 billion

Transistors

0.21 billion

212 mm²

Die Size

127 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

5.1

Shader Model

4.0

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