NVIDIA GeForce GT 755M Mac Edition vs AMD Radeon RX 640 Mobile

VS

NVIDIA GeForce GT 755M Mac Edition

AMD Radeon RX 640 Mobile

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 755M Mac Edition and 2GB VRAM Radeon RX 640 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 755M Mac Edition 's Advantages

Larger VRAM bandwidth (80.00GB/s vs 48.00GB/s)

AMD Radeon RX 640 Mobile 's Advantages

Released 5 years and 6 months late

Boost Clock1218MHz

More VRAM (2GB vs 1024GB)

256 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 755M Mac Edition

0.833 TFLOPS

Radeon RX 640 Mobile +87%

1.559 TFLOPS

GeForce GT 755M Mac Edition

VS

Radeon RX 640 Mobile

Graphics Card

Nov 2013

Release Date

May 2019

GeForce 700M

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1082 MHz

-

Boost Clock

1218 MHz

1250 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

80.00GB/s

Bandwidth

48.00GB/s

Render Config

-

Compute Units

10

-

384

Shading Units

640

32

TMUs

40

16

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

8.680 GPixel/s

Pixel Rate

19.49 GPixel/s

34.72 GTexel/s

Texture Rate

48.72 GTexel/s

-

FP16 (half)

1.559 TFLOPS

833.3 GFLOPS

FP32 (float)

1.559 TFLOPS

34.72 GFLOPS

FP64 (double)

97.44 GFLOPS

Board Design

50W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GK107

GPU Name

Polaris 23

GT 755M

GPU Variant

Polaris 23 XT

Kepler

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.27 billion

Transistors

2.2 billion

118 mm²

Die Size

103 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.4

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