ATI Mobility Radeon HD 4650 vs NVIDIA GeForce GT 745A

VS

ATI Mobility Radeon HD 4650

NVIDIA GeForce GT 745A

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4650 and 2GB VRAM GeForce GT 745A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 745A 's Advantages

Released 4 years and 7 months late

Boost Clock915MHz

More VRAM (2GB vs 512GB)

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

64 additional rendering cores

Lower TDP (33W vs 35W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4650

0.32 TFLOPS

GeForce GT 745A +119%

0.703 TFLOPS

Mobility Radeon HD 4650

VS

GeForce GT 745A

Graphics Card

Jan 2009

Release Date

Aug 2013

M9x

Generation

GeForce 700A

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

837 MHz

-

Boost Clock

915 MHz

600 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

DDR2

Memory Type

DDR3

128bit

Memory Bus

128bit

19.20GB/s

Bandwidth

28.80GB/s

Render Config

4

Compute Units

-

320

Shading Units

384

32

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

4.000 GPixel/s

Pixel Rate

7.320 GPixel/s

16.00 GTexel/s

Texture Rate

29.28 GTexel/s

-

320.0 GFLOPS

FP32 (float)

702.7 GFLOPS

-

FP64 (double)

29.28 GFLOPS

Board Design

35W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M96

GPU Name

GK107

-

GPU Variant

N14P-LP

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

1.27 billion

146 mm²

Die Size

118 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.1

Shader Model

5.1

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