NVIDIA GeForce GT 645M vs ATI Mobility Radeon HD 550v

VS

NVIDIA GeForce GT 645M ATI Mobility Radeon HD 550v

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 645M and 1024MB VRAM Mobility Radeon HD 550v to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645M 's Advantages

Released 2 years and 5 months late

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (28.80GB/s vs 19.20GB/s)

64 additional rendering cores

ATI Mobility Radeon HD 550v 's Advantages

Lower TDP (10W vs 32W)

Score

Benchmark

FP32 (float)

GeForce GT 645M +88%

0.544 TFLOPS

Mobility Radeon HD 550v

0.288 TFLOPS

GeForce GT 645M

VS

Mobility Radeon HD 550v

Graphics Card

Oct 2012

Release Date

May 2010

GeForce 600M

Generation

M9x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

600 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

19.20GB/s

Render Config

-

SM Count

-

Compute Units

4

384

Shading Units

320

32

TMUs

32

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

5.672 GPixel/s

Pixel Rate

3.600 GPixel/s

22.69 GTexel/s

Texture Rate

14.40 GTexel/s

-

FP16 (half)

-

544.5 GFLOPS

FP32 (float)

288.0 GFLOPS

22.69 GFLOPS

FP64 (double)

-

Graphics Processor

GK107

GPU Name

M96

N13P-GS

GPU Variant

-

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.27 billion

Transistors

0.514 billion

118 mm²

Die Size

146 mm²

Board Design

32W

TDP

10W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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