NVIDIA GeForce GTX TITAN vs NVIDIA GeForce GT 640 Rev. 2

VS

NVIDIA GeForce GTX TITAN

NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX TITAN and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX TITAN 's Advantages

Boost Clock876MHz

More VRAM (6GB vs 1024GB)

Larger VRAM bandwidth (288.4GB/s vs 40.06GB/s)

2304 additional rendering cores

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Lower TDP (49W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX TITAN +486%

4.709 TFLOPS

GeForce GT 640 Rev. 2

0.803 TFLOPS

GeForce GTX TITAN

VS

GeForce GT 640 Rev. 2

Graphics Card

Feb 2013

Release Date

May 2013

GeForce 700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

836 MHz

Base Clock

-

876 MHz

Boost Clock

-

1502 MHz

Memory Clock

1252 MHz

Memory

6GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

64bit

288.4GB/s

Bandwidth

40.06GB/s

Render Config

-

2688

Shading Units

384

224

TMUs

32

48

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

1536 KB

L2 Cache

512 KB

-

Theoretical Performance

49.06 GPixel/s

Pixel Rate

8.368 GPixel/s

196.2 GTexel/s

Texture Rate

33.47 GTexel/s

-

4.709 TFLOPS

FP32 (float)

803.3 GFLOPS

1.570 TFLOPS

FP64 (double)

33.47 GFLOPS

Board Design

250W

TDP

49W

600 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GK110

GPU Name

GK208

GK110-400-A1

GPU Variant

GK208-400-A1

Kepler

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

1.02 billion

561 mm²

Die Size

87 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.5

CUDA

3.5

5.1

Shader Model

5.1

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