NVIDIA GeForce GT 640 vs ATI FirePro V7900

VS

NVIDIA GeForce GT 640

ATI FirePro V7900

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 2GB VRAM FirePro V7900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 1 years and 1 months late

Lower TDP (65W vs 150W)

ATI FirePro V7900 's Advantages

Larger VRAM bandwidth (160.0GB/s vs 28.51GB/s)

896 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

FirePro V7900 +167%

1.856 TFLOPS

GeForce GT 640

VS

FirePro V7900

Graphics Card

Jun 2012

Release Date

May 2011

GeForce 600

Generation

FirePro

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

891 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.51GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

20

-

384

Shading Units

1280

32

TMUs

80

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

23.20 GPixel/s

28.86 GTexel/s

Texture Rate

58.00 GTexel/s

-

692.7 GFLOPS

FP32 (float)

1.856 TFLOPS

28.86 GFLOPS

FP64 (double)

464.0 GFLOPS

Board Design

65W

TDP

150W

250 W

Suggested PSU

450 W

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

Outputs

4x DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

GK107

GPU Name

Cayman

GK107-300-A2

GPU Variant

Cayman PRO GL

Kepler

Architecture

TeraScale 3

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

2.64 billion

118 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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