AMD Radeon RX 640 Mobile vs NVIDIA GeForce GTX 860M

VS

AMD Radeon RX 640 Mobile

NVIDIA GeForce GTX 860M

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 4GB VRAM GeForce GTX 860M 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 5 years and 4 months late

Boost Clock has increased by 12% (1218MHz vs 1085MHz)

Lower TDP (50W vs 75W)

NVIDIA GeForce GTX 860M 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (80.19GB/s vs 48.00GB/s)

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile +12%

1.559 TFLOPS

GeForce GTX 860M

1.389 TFLOPS

Radeon RX 640 Mobile

VS

GeForce GTX 860M

Graphics Card

May 2019

Release Date

Jan 2014

Mobility Radeon

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

1082 MHz

Base Clock

1020 MHz

1218 MHz

Boost Clock

1085 MHz

1500 MHz

Memory Clock

1253 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

80.19GB/s

Render Config

10

Compute Units

-

640

Shading Units

640

40

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

17.36 GPixel/s

48.72 GTexel/s

Texture Rate

43.40 GTexel/s

1.559 TFLOPS

FP16 (half)

-

1.559 TFLOPS

FP32 (float)

1389 GFLOPS

97.44 GFLOPS

FP64 (double)

43.40 GFLOPS

Board Design

50W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 23

GPU Name

GM107

Polaris 23 XT

GPU Variant

N15P-GX-A1

GCN 4.0

Architecture

Maxwell

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

1.87 billion

103 mm²

Die Size

148 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

6.4

Shader Model

5.1

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