NVIDIA GeForce GTX 660 Ti vs ATI FirePro V3900

VS

NVIDIA GeForce GTX 660 Ti

ATI FirePro V3900

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 1024MB VRAM FirePro V3900 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 6 months late

Boost Clock980MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (144.2GB/s vs 28.80GB/s)

864 additional rendering cores

ATI FirePro V3900 's Advantages

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti +322%

2.634 TFLOPS

FirePro V3900

0.624 TFLOPS

GeForce GTX 660 Ti

VS

FirePro V3900

Graphics Card

Aug 2012

Release Date

Feb 2012

GeForce 600

Generation

FirePro

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

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

28.80GB/s

Render Config

-

Compute Units

6

-

1344

Shading Units

480

112

TMUs

24

ROPs

8

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

5.200 GPixel/s

109.8 GTexel/s

Texture Rate

15.60 GTexel/s

-

2.634 TFLOPS

FP32 (float)

624.0 GFLOPS

109.8 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

50W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x DisplayPort 1.1

2x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

Turks

GK104-300-KD-A2

GPU Variant

Turks GL

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

0.716 billion

294 mm²

Die Size

118 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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