AMD Radeon Pro 575X vs NVIDIA GeForce GT 645M

VS

AMD Radeon Pro 575X

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 575X 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 575X 's Advantages

Released 6 years and 5 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (217.6GB/s vs 28.80GB/s)

1664 additional rendering cores

NVIDIA GeForce GT 645M 's Advantages

Lower TDP (32W vs 150W)

Score

Benchmark

FP32 (float)

Radeon Pro 575X +725%

4.489 TFLOPS

GeForce GT 645M

0.544 TFLOPS

Radeon Pro 575X

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

-

1700 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

217.6GB/s

Bandwidth

28.80GB/s

Render Config

32

Compute Units

-

2048

Shading Units

384

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

35.07 GPixel/s

Pixel Rate

5.672 GPixel/s

140.3 GTexel/s

Texture Rate

22.69 GTexel/s

4.489 TFLOPS

FP16 (half)

-

4.489 TFLOPS

FP32 (float)

544.5 GFLOPS

280.6 GFLOPS

FP64 (double)

22.69 GFLOPS

Board Design

150W

TDP

32W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 20

GPU Name

GK107

Polaris 20 XL (215-0910052)

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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