NVIDIA GeForce GTX TITAN vs NVIDIA GeForce GT 640 OEM

VS

NVIDIA GeForce GTX TITAN

NVIDIA GeForce GT 640 OEM

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

Main Differences

NVIDIA GeForce GTX TITAN 's Advantages

Released 10 months late

Boost Clock876MHz

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (288.4GB/s vs 28.51GB/s)

2304 additional rendering cores

NVIDIA GeForce GT 640 OEM 's Advantages

Lower TDP (50W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX TITAN +669%

4.709 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

GeForce GTX TITAN

VS

GeForce GT 640 OEM

Graphics Card

Feb 2013

Release Date

Apr 2012

GeForce 700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

836 MHz

Base Clock

-

876 MHz

Boost Clock

-

1502 MHz

Memory Clock

891 MHz

Memory

6GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

128bit

288.4GB/s

Bandwidth

28.51GB/s

Render Config

-

2688

Shading Units

384

224

TMUs

32

48

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

1536 KB

L2 Cache

256 KB

-

Theoretical Performance

49.06 GPixel/s

Pixel Rate

6.376 GPixel/s

196.2 GTexel/s

Texture Rate

25.50 GTexel/s

-

4.709 TFLOPS

FP32 (float)

612.1 GFLOPS

1.570 TFLOPS

FP64 (double)

25.50 GFLOPS

Board Design

250W

TDP

50W

600 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GK110

GPU Name

GK107

GK110-400-A1

GPU Variant

GK107-320-A2

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

1.27 billion

561 mm²

Die Size

118 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

3.0

5.1

Shader Model

5.1

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