AMD Radeon RX 640 Mobile vs NVIDIA GeForce GTX 775M Mac Edition

VS

AMD Radeon RX 640 Mobile

NVIDIA GeForce GTX 775M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 2GB VRAM GeForce GTX 775M Mac Edition 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 6 months late

Boost Clock1218MHz

Lower TDP (50W vs 100W)

NVIDIA GeForce GTX 775M Mac Edition 's Advantages

Larger VRAM bandwidth (160.0GB/s vs 48.00GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile

1.559 TFLOPS

GeForce GTX 775M Mac Edition +37%

2.142 TFLOPS

Radeon RX 640 Mobile

VS

GeForce GTX 775M Mac Edition

Graphics Card

May 2019

Release Date

Nov 2013

Mobility Radeon

Generation

GeForce 700M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

1082 MHz

Base Clock

-

1218 MHz

Boost Clock

-

1500 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

160.0GB/s

Render Config

10

Compute Units

-

640

Shading Units

1344

40

TMUs

112

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

22.32 GPixel/s

48.72 GTexel/s

Texture Rate

89.26 GTexel/s

1.559 TFLOPS

FP16 (half)

-

1.559 TFLOPS

FP32 (float)

2.142 TFLOPS

97.44 GFLOPS

FP64 (double)

89.26 GFLOPS

Board Design

50W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 23

GPU Name

GK104

Polaris 23 XT

GPU Variant

N13E-GTX-A2

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

3.54 billion

103 mm²

Die Size

294 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.4

Shader Model

5.1

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