NVIDIA GeForce GTX 460 X2 vs NVIDIA GeForce GTX 660

VS

NVIDIA GeForce GTX 460 X2

NVIDIA GeForce GTX 660

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 460 X2 and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages

Released 1 years and 6 months late

Boost Clock1032MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (144.2GB/s vs 115.2GB/s)

624 additional rendering cores

Lower TDP (140W vs 160W)

Score

Benchmark

FP32 (float)

GeForce GTX 460 X2

0.942 TFLOPS

GeForce GTX 660 +110%

1.981 TFLOPS

GeForce GTX 460 X2

VS

GeForce GTX 660

Graphics Card

Mar 2011

Release Date

Sep 2012

GeForce 400

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

900 MHz

Memory Clock

1502 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

115.2GB/s

Bandwidth

144.2GB/s

Render Config

-

7

SM Count

-

336

Shading Units

960

56

TMUs

80

32

ROPs

24

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

9.814 GPixel/s

Pixel Rate

20.64 GPixel/s

39.26 GTexel/s

Texture Rate

82.56 GTexel/s

-

941.5 GFLOPS

FP32 (float)

1.981 TFLOPS

78.46 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

160W

TDP

140W

450 W

Suggested PSU

300 W

3x DVI 1x mini-HDMI 1.3a

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

GF104

GPU Name

GK106

GF104-300-KB-A1

GPU Variant

GK106-400-A1

Fermi

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

2.54 billion

332 mm²

Die Size

221 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.0

5.1

Shader Model

5.1

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