NVIDIA GeForce GTX 660 OEM vs ATI FirePro V7900

VS

NVIDIA GeForce GTX 660 OEM

ATI FirePro V7900

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM and 2GB VRAM FirePro V7900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 OEM 's Advantages

Released 1 years and 3 months late

Boost Clock888MHz

Lower TDP (130W vs 150W)

ATI FirePro V7900 's Advantages

More VRAM (2GB vs 1536GB)

Larger VRAM bandwidth (160.0GB/s vs 134.4GB/s)

128 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 OEM +10%

2.046 TFLOPS

FirePro V7900

1.856 TFLOPS

GeForce GTX 660 OEM

VS

FirePro V7900

Graphics Card

Aug 2012

Release Date

May 2011

GeForce 600

Generation

FirePro

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

823 MHz

Base Clock

-

888 MHz

Boost Clock

-

1400 MHz

Memory Clock

1250 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

134.4GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

20

-

1152

Shading Units

1280

96

TMUs

80

24

ROPs

32

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

21.31 GPixel/s

Pixel Rate

23.20 GPixel/s

85.25 GTexel/s

Texture Rate

58.00 GTexel/s

-

2.046 TFLOPS

FP32 (float)

1.856 TFLOPS

85.25 GFLOPS

FP64 (double)

464.0 GFLOPS

Board Design

130W

TDP

150W

300 W

Suggested PSU

450 W

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

Outputs

4x DisplayPort 1.2

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GK104

GPU Name

Cayman

GK104-200-KD-A2

GPU Variant

Cayman PRO GL

Kepler

Architecture

TeraScale 3

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

2.64 billion

294 mm²

Die Size

389 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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