AMD Radeon RX 640 Mobile vs NVIDIA GeForce GT 120M Mac Edition

VS

AMD Radeon RX 640 Mobile

NVIDIA GeForce GT 120M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 256MB VRAM GeForce GT 120M 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 10 years and 5 months late

Boost Clock1218MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (48.00GB/s vs 25.34GB/s)

608 additional rendering cores

NVIDIA GeForce GT 120M Mac Edition 's Advantages

Lower TDP (14W vs 50W)

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile +1848%

1.559 TFLOPS

GeForce GT 120M Mac Edition

0.08 TFLOPS

Radeon RX 640 Mobile

VS

GeForce GT 120M Mac Edition

Graphics Card

May 2019

Release Date

Dec 2008

Mobility Radeon

Generation

GeForce 100M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1082 MHz

Base Clock

-

1218 MHz

Boost Clock

-

1500 MHz

Memory Clock

792 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

25.34GB/s

Render Config

10

Compute Units

-

SM Count

4

640

Shading Units

32

40

TMUs

16

ROPs

8

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

4.000 GPixel/s

48.72 GTexel/s

Texture Rate

8.000 GTexel/s

1.559 TFLOPS

FP16 (half)

-

1.559 TFLOPS

FP32 (float)

80.00 GFLOPS

97.44 GFLOPS

FP64 (double)

-

Board Design

50W

TDP

14W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 23

GPU Name

G96C

Polaris 23 XT

GPU Variant

-

GCN 4.0

Architecture

Tesla

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

2.2 billion

Transistors

0.314 billion

103 mm²

Die Size

121 mm²

Graphics Features

12 (12_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

6.4

Shader Model

4.0

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