NVIDIA GeForce GT 645 OEM vs NVIDIA GeForce GTX TITAN BLACK

VS

NVIDIA GeForce GT 645 OEM

NVIDIA GeForce GTX TITAN BLACK

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 6GB VRAM GeForce GTX TITAN BLACK to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 250W)

NVIDIA GeForce GTX TITAN BLACK 's Advantages

Released 1 years and 10 months late

Boost Clock980MHz

More VRAM (6GB vs 1024GB)

Larger VRAM bandwidth (336.0GB/s vs 91.87GB/s)

2592 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

GeForce GTX TITAN BLACK +531%

5.645 TFLOPS

GeForce GT 645 OEM

VS

GeForce GTX TITAN BLACK

Graphics Card

Apr 2012

Release Date

Feb 2014

GeForce 600

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

889 MHz

-

Boost Clock

980 MHz

957 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

384bit

91.87GB/s

Bandwidth

336.0GB/s

Render Config

-

6

SM Count

-

288

Shading Units

2880

48

TMUs

240

24

ROPs

48

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

1536 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

58.80 GPixel/s

37.25 GTexel/s

Texture Rate

235.2 GTexel/s

-

894.0 GFLOPS

FP32 (float)

5.645 TFLOPS

74.50 GFLOPS

FP64 (double)

1.882 TFLOPS

Board Design

102W

TDP

250W

300 W

Suggested PSU

600 W

2x DVI 1x mini-HDMI 1.3a

Outputs

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

-

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GF114

GPU Name

GK110B

-

GPU Variant

GK110-430-B1

Fermi 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

7.08 billion

332 mm²

Die Size

561 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.5

5.1

Shader Model

5.1

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