AMD Radeon Pro 555 vs NVIDIA GeForce GT 640M Mac Edition

VS

AMD Radeon Pro 555 NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 555 and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555 's Advantages

Released 4 years and 4 months late

Larger VRAM bandwidth (81.60GB/s vs 40.00GB/s)

384 additional rendering cores

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Lower TDP (32W vs 75W)

Score

Benchmark

FP32 (float)

Radeon Pro 555 +128%

1.306 TFLOPS

GeForce GT 640M Mac Edition

0.572 TFLOPS

Radeon Pro 555

VS

GeForce GT 640M Mac Edition

Graphics Card

Jun 2017

Release Date

Feb 2013

Radeon Pro Mac

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1275 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

81.60GB/s

Bandwidth

40.00GB/s

Render Config

-

SM Count

-

12

Compute Units

-

768

Shading Units

384

48

TMUs

32

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

128 KB

Theoretical Performance

13.60 GPixel/s

Pixel Rate

5.960 GPixel/s

40.80 GTexel/s

Texture Rate

23.84 GTexel/s

1306 GFLOPS

FP16 (half)

-

1306 GFLOPS

FP32 (float)

572.2 GFLOPS

81.60 GFLOPS

FP64 (double)

23.84 GFLOPS

Graphics Processor

Polaris 21

GPU Name

GK107

Polaris 21 PRO

GPU Variant

N13P-GS

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

1.27 billion

123 mm²

Die Size

118 mm²

Board Design

75W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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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