AMD Radeon Pro 580X vs NVIDIA GeForce GT 645M

VS

AMD Radeon Pro 580X

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 8GB VRAM Radeon Pro 580X and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 580X 's Advantages

Released 6 years and 5 months late

Boost Clock1200MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (218.9GB/s vs 28.80GB/s)

1920 additional rendering cores

NVIDIA GeForce GT 645M 's Advantages

Lower TDP (32W vs 185W)

Score

Benchmark

FP32 (float)

Radeon Pro 580X +916%

5.53 TFLOPS

GeForce GT 645M

0.544 TFLOPS

Radeon Pro 580X

VS

GeForce GT 645M

Graphics Card

Mar 2019

Release Date

Oct 2012

Radeon Pro Mac

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1200 MHz

Boost Clock

-

1710 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

218.9GB/s

Bandwidth

28.80GB/s

Render Config

36

Compute Units

-

2304

Shading Units

384

144

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

38.40 GPixel/s

Pixel Rate

5.672 GPixel/s

172.8 GTexel/s

Texture Rate

22.69 GTexel/s

5.530 TFLOPS

FP16 (half)

-

5.530 TFLOPS

FP32 (float)

544.5 GFLOPS

345.6 GFLOPS

FP64 (double)

22.69 GFLOPS

Board Design

185W

TDP

32W

-

2x HDMI 2.0b

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Ellesmere

GPU Name

GK107

Ellesmere XTA (216-0886220)

GPU Variant

N13P-GS

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

1.27 billion

232 mm²

Die Size

118 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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