NVIDIA GeForce GT 645 OEM vs NVIDIA GeForce GTS 450 OEM

VS

NVIDIA GeForce GT 645 OEM

NVIDIA GeForce GTS 450 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 512MB VRAM GeForce GTS 450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Released 1 years and 7 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (91.87GB/s vs 57.73GB/s)

144 additional rendering cores

Lower TDP (102W vs 106W)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM +98%

0.894 TFLOPS

GeForce GTS 450 OEM

0.451 TFLOPS

GeForce GT 645 OEM

VS

GeForce GTS 450 OEM

Graphics Card

Apr 2012

Release Date

Sep 2010

GeForce 600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

957 MHz

Memory Clock

902 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

57.73GB/s

Render Config

-

6

SM Count

3

288

Shading Units

144

48

TMUs

24

ROPs

16

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

4.698 GPixel/s

37.25 GTexel/s

Texture Rate

18.79 GTexel/s

-

894.0 GFLOPS

FP32 (float)

451.0 GFLOPS

74.50 GFLOPS

FP64 (double)

37.58 GFLOPS

Board Design

102W

TDP

106W

300 W

Suggested PSU

300 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x DisplayPort 1x VGA

-

Power Connectors

1x 6-pin

Graphics Processor

GF114

GPU Name

GF106

-

Fermi 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.95 billion

Transistors

1.17 billion

332 mm²

Die Size

238 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

2.1

5.1

Shader Model

5.1

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