NVIDIA GeForce GTX 660 vs ATI Radeon X1600 XT Dual

VS

NVIDIA GeForce GTX 660

ATI Radeon X1600 XT Dual

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 256MB VRAM Radeon X1600 XT Dual to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages

Boost Clock1032MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (144.2GB/s vs 22.08GB/s)

960 additional rendering cores

Score

GeForce GTX 660

VS

Radeon X1600 XT Dual

Graphics Card

Sep 2012

Release Date

Unknown

GeForce 600

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

690 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

22.08GB/s

Render Config

-

960

Shading Units

-

80

TMUs

4

24

ROPs

4

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

2.360 GPixel/s

82.56 GTexel/s

Texture Rate

2.360 GTexel/s

-

1.981 TFLOPS

FP32 (float)

-

82.56 GFLOPS

FP64 (double)

-

Board Design

140W

TDP

Unknown

300 W

Suggested PSU

200 W

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

Outputs

2x DVI

1x 6-pin

Power Connectors

1x Molex

Graphics Processor

GK106

GPU Name

RV530

GK106-400-A1

GPU Variant

-

Kepler

Architecture

Ultra-Threaded SE

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

2.54 billion

Transistors

0.157 billion

221 mm²

Die Size

150 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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