AMD Radeon R9 M390X vs NVIDIA GeForce 8600M GS

VS

AMD Radeon R9 M390X

NVIDIA GeForce 8600M GS

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M390X and 512MB VRAM GeForce 8600M GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390X 's Advantages

Released 8 years late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 12.80GB/s)

2032 additional rendering cores

NVIDIA GeForce 8600M GS 's Advantages

Lower TDP (20W vs 75W)

Score

Benchmark

FP32 (float)

Radeon R9 M390X +10110%

2.961 TFLOPS

GeForce 8600M GS

0.029 TFLOPS

Radeon R9 M390X

VS

GeForce 8600M GS

Graphics Card

May 2015

Release Date

May 2007

Crystal System

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-II

Clock Speeds

-

1250 MHz

Memory Clock

400 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

12.80GB/s

Render Config

32

Compute Units

-

SM Count

1

2048

Shading Units

16

128

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

1.800 GPixel/s

92.54 GTexel/s

Texture Rate

3.600 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

28.80 GFLOPS

185.1 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

20W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

G86

Amethyst XT

GPU Variant

G86-770-A2

GCN 3.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

5 billion

Transistors

0.21 billion

366 mm²

Die Size

127 mm²

Graphics Features

12 (12_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

6.3

Shader Model

4.0

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