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

VS

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

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 640M 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 640M Mac Edition 's Advantages

Lower TDP (32W vs 50W)

AMD Radeon RX 640 Mobile 's Advantages

Released 6 years and 3 months late

Boost Clock1218MHz

Larger VRAM bandwidth (48.00GB/s vs 40.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640M Mac Edition

0.572 TFLOPS

Radeon RX 640 Mobile +172%

1.559 TFLOPS

GeForce GT 640M Mac Edition

VS

Radeon RX 640 Mobile

Graphics Card

Feb 2013

Release Date

May 2019

GeForce 600M

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

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

64bit

40.00GB/s

Bandwidth

48.00GB/s

Render Config

-

SM Count

-

Compute Units

10

384

Shading Units

640

32

TMUs

40

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

Theoretical Performance

5.960 GPixel/s

Pixel Rate

19.49 GPixel/s

23.84 GTexel/s

Texture Rate

48.72 GTexel/s

-

FP16 (half)

1.559 TFLOPS

572.2 GFLOPS

FP32 (float)

1.559 TFLOPS

23.84 GFLOPS

FP64 (double)

97.44 GFLOPS

Graphics Processor

GK107

GPU Name

Polaris 23

N13P-GS

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

Board Design

32W

TDP

50W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

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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