NVIDIA GeForce GTX 660 Ti vs ATI Radeon HD 5450

VS

NVIDIA GeForce GTX 660 Ti

ATI Radeon HD 5450

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 512MB VRAM Radeon HD 5450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Ti 's Advantages

Released 2 years and 6 months late

Boost Clock980MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (144.2GB/s vs 6.400GB/s)

1264 additional rendering cores

ATI Radeon HD 5450 's Advantages

Lower TDP (19W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti +2432%

2.634 TFLOPS

Radeon HD 5450

0.104 TFLOPS

GeForce GTX 660 Ti

VS

Radeon HD 5450

Graphics Card

Aug 2012

Release Date

Feb 2010

GeForce 600

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

915 MHz

Base Clock

-

980 MHz

Boost Clock

-

1502 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

192bit

Memory Bus

64bit

144.2GB/s

Bandwidth

6.400GB/s

Render Config

-

Compute Units

2

-

1344

Shading Units

80

112

TMUs

8

24

ROPs

4

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

128 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

2.600 GPixel/s

109.8 GTexel/s

Texture Rate

5.200 GTexel/s

-

2.634 TFLOPS

FP32 (float)

104.0 GFLOPS

109.8 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

19W

450 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

Cedar

GK104-300-KD-A2

GPU Variant

Cedar PRO

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

0.292 billion

294 mm²

Die Size

59 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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