AMD Radeon E9550 MXM vs NVIDIA GeForce GT 645M

VS

AMD Radeon E9550 MXM

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 8GB VRAM Radeon E9550 MXM 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 E9550 MXM 's Advantages

Released 3 years and 11 months late

Boost Clock1266MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)

1920 additional rendering cores

NVIDIA GeForce GT 645M 's Advantages

Lower TDP (32W vs 95W)

Score

Benchmark

FP32 (float)

Radeon E9550 MXM +972%

5.834 TFLOPS

GeForce GT 645M

0.544 TFLOPS

Radeon E9550 MXM

VS

GeForce GT 645M

Graphics Card

Sep 2016

Release Date

Oct 2012

Embedded

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

1120 MHz

Base Clock

-

1266 MHz

Boost Clock

-

1250 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

160.0GB/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

40.51 GPixel/s

Pixel Rate

5.672 GPixel/s

182.3 GTexel/s

Texture Rate

22.69 GTexel/s

5.834 TFLOPS

FP16 (half)

-

5.834 TFLOPS

FP32 (float)

544.5 GFLOPS

364.6 GFLOPS

FP64 (double)

22.69 GFLOPS

Board Design

95W

TDP

32W

-

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Ellesmere

GPU Name

GK107

Ellesmere XT

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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