AMD Radeon RX 640 Mobile vs NVIDIA GeForce GTX 765M

VS

AMD Radeon RX 640 Mobile

NVIDIA GeForce GTX 765M

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 2GB VRAM GeForce GTX 765M 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 6 years late

Boost Clock has increased by 41% (1218MHz vs 863MHz)

Lower TDP (50W vs 75W)

NVIDIA GeForce GTX 765M 's Advantages

Larger VRAM bandwidth (64.13GB/s vs 48.00GB/s)

128 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile +17%

1.559 TFLOPS

GeForce GTX 765M

1.326 TFLOPS

Radeon RX 640 Mobile

VS

GeForce GTX 765M

Graphics Card

May 2019

Release Date

May 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

797 MHz

1218 MHz

Boost Clock

863 MHz

1500 MHz

Memory Clock

1002 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

64.13GB/s

Render Config

10

Compute Units

-

640

Shading Units

768

40

TMUs

64

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

13.81 GPixel/s

48.72 GTexel/s

Texture Rate

55.23 GTexel/s

1.559 TFLOPS

FP16 (half)

-

1.559 TFLOPS

FP32 (float)

1326 GFLOPS

97.44 GFLOPS

FP64 (double)

55.23 GFLOPS

Board Design

50W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 23

GPU Name

GK106

Polaris 23 XT

GPU Variant

N14E-GE-B-A1

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

2.54 billion

103 mm²

Die Size

221 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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