AMD Radeon R9 M390X vs NVIDIA GeForce 8700M GT

VS

AMD Radeon R9 M390X

NVIDIA GeForce 8700M GT

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M390X and 512MB VRAM GeForce 8700M GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390X 's Advantages

Released 7 years and 11 months late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 25.60GB/s)

2016 additional rendering cores

NVIDIA GeForce 8700M GT 's Advantages

Lower TDP (29W vs 75W)

Score

Benchmark

FP32 (float)

Radeon R9 M390X +3601%

2.961 TFLOPS

GeForce 8700M GT

0.08 TFLOPS

Radeon R9 M390X

VS

GeForce 8700M GT

Graphics Card

May 2015

Release Date

Jun 2007

Crystal System

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-HE

Clock Speeds

-

1250 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

25.60GB/s

Render Config

32

Compute Units

-

SM Count

4

2048

Shading Units

32

128

TMUs

16

32

ROPs

8

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

5.000 GPixel/s

92.54 GTexel/s

Texture Rate

10.00 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

80.00 GFLOPS

185.1 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

29W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

G84

Amethyst XT

GPU Variant

NB8E-SE

GCN 3.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

5 billion

Transistors

0.289 billion

366 mm²

Die Size

169 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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