NVIDIA GeForce GT 745A vs AMD Radeon HD 6630M

VS

NVIDIA GeForce GT 745A

AMD Radeon HD 6630M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 745A and 1024MB VRAM Radeon HD 6630M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 745A 's Advantages

Released 2 years and 7 months late

Boost Clock915MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 25.60GB/s)

AMD Radeon HD 6630M 's Advantages

96 additional rendering cores

Lower TDP (26W vs 33W)

Score

Benchmark

FP32 (float)

GeForce GT 745A +46%

0.703 TFLOPS

Radeon HD 6630M

0.48 TFLOPS

GeForce GT 745A

VS

Radeon HD 6630M

Graphics Card

Aug 2013

Release Date

Jan 2011

GeForce 700A

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

837 MHz

Base Clock

-

915 MHz

Boost Clock

-

900 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

6

-

384

Shading Units

480

32

TMUs

24

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.320 GPixel/s

Pixel Rate

4.000 GPixel/s

29.28 GTexel/s

Texture Rate

12.00 GTexel/s

-

702.7 GFLOPS

FP32 (float)

480.0 GFLOPS

29.28 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

26W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK107

GPU Name

Whistler

N14P-LP

GPU Variant

Whistler LP

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

0.716 billion

118 mm²

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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