AMD Radeon RX 640 Mobile vs NVIDIA GeForce GTX 980MX

VS

AMD Radeon RX 640 Mobile

NVIDIA GeForce GTX 980MX

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 8GB VRAM GeForce GTX 980MX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 640 Mobile 's Advantages

Released 2 years and 11 months late

Boost Clock has increased by 3% (1218MHz vs 1178MHz)

Lower TDP (50W vs 148W)

NVIDIA GeForce GTX 980MX 's Advantages

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (192.0GB/s vs 48.00GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile

1.559 TFLOPS

GeForce GTX 980MX +151%

3.92 TFLOPS

Radeon RX 640 Mobile

VS

GeForce GTX 980MX

Graphics Card

May 2019

Release Date

Jun 2016

Mobility Radeon

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1082 MHz

Base Clock

1050 MHz

1218 MHz

Boost Clock

1178 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

192.0GB/s

Render Config

10

Compute Units

-

640

Shading Units

1664

40

TMUs

104

16

ROPs

64

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

75.39 GPixel/s

48.72 GTexel/s

Texture Rate

122.5 GTexel/s

1.559 TFLOPS

FP16 (half)

-

1.559 TFLOPS

FP32 (float)

3.920 TFLOPS

97.44 GFLOPS

FP64 (double)

122.5 GFLOPS

Board Design

50W

TDP

148W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 23

GPU Name

GM204

Polaris 23 XT

GPU Variant

N16E-GXX-A1

GCN 4.0

Architecture

Maxwell 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

5.2 billion

103 mm²

Die Size

398 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.2

6.4

Shader Model

6.4

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