NVIDIA GeForce GTX 660 Ti vs ATI Radeon X1550

VS

NVIDIA GeForce GTX 660 Ti

ATI Radeon X1550

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 256MB VRAM Radeon X1550 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 5 years and 7 months late

Boost Clock980MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (144.2GB/s vs 12.80GB/s)

1344 additional rendering cores

ATI Radeon X1550 's Advantages

Lower TDP (27W vs 150W)

Score

GeForce GTX 660 Ti

VS

Radeon X1550

Graphics Card

Aug 2012

Release Date

Jan 2007

GeForce 600

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

915 MHz

Base Clock

-

980 MHz

Boost Clock

-

1502 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

12.80GB/s

Render Config

-

1344

Shading Units

-

112

TMUs

4

24

ROPs

4

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

2.200 GPixel/s

109.8 GTexel/s

Texture Rate

2.200 GTexel/s

-

2.634 TFLOPS

FP32 (float)

-

109.8 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

27W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

RV516

GK104-300-KD-A2

GPU Variant

-

Kepler

Architecture

R500

TSMC

Foundry

UMC

28 nm

Process Size

80 nm

3.54 billion

Transistors

0.107 billion

294 mm²

Die Size

100 mm²

Graphics Features

12 (11_0)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

3.0

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