AMD Radeon HD 6630M Mac Edition vs NVIDIA GeForce GT 740M

VS

AMD Radeon HD 6630M Mac Edition

NVIDIA GeForce GT 740M

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6630M Mac Edition and 2GB VRAM GeForce GT 740M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6630M Mac Edition 's Advantages

Larger VRAM bandwidth (19.20GB/s vs 14.40GB/s)

96 additional rendering cores

Lower TDP (26W vs 33W)

NVIDIA GeForce GT 740M 's Advantages

Released 2 years and 5 months late

More VRAM (2GB vs 256GB)

Score

Benchmark

FP32 (float)

Radeon HD 6630M Mac Edition

0.48 TFLOPS

GeForce GT 740M +56%

0.753 TFLOPS

Radeon HD 6630M Mac Edition

VS

GeForce GT 740M

Graphics Card

Jan 2011

Release Date

Jun 2013

Vancouver

Generation

GeForce 700M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

600 MHz

Memory Clock

900 MHz

Memory

256MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

64bit

19.20GB/s

Bandwidth

14.40GB/s

Render Config

6

Compute Units

-

480

Shading Units

384

24

TMUs

32

8

ROPs

8

-

L1 Cache

16 KB (per SMX)

-

L2 Cache

512 KB

-

Theoretical Performance

4.000 GPixel/s

Pixel Rate

7.840 GPixel/s

12.00 GTexel/s

Texture Rate

31.36 GTexel/s

-

480.0 GFLOPS

FP32 (float)

752.6 GFLOPS

-

FP64 (double)

31.36 GFLOPS

Board Design

26W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

GK208

Whistler LP

GPU Variant

GT 740M

TeraScale 2

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.02 billion

104 mm²

Die Size

87 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

5.0

Shader Model

5.1

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