NVIDIA GeForce GTS 450 OEM vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA GeForce GTS 450 OEM

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 512MB VRAM GeForce GTS 450 OEM and 1024MB VRAM GeForce GT 645 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 GTS 450 OEM

0.451 TFLOPS

GeForce GT 645 OEM +98%

0.894 TFLOPS

GeForce GTS 450 OEM

VS

GeForce GT 645 OEM

Graphics Card

Sep 2010

Release Date

Apr 2012

GeForce 400

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

902 MHz

Memory Clock

957 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

57.73GB/s

Bandwidth

91.87GB/s

Render Config

-

3

SM Count

6

144

Shading Units

288

24

TMUs

48

16

ROPs

24

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

4.698 GPixel/s

Pixel Rate

9.312 GPixel/s

18.79 GTexel/s

Texture Rate

37.25 GTexel/s

-

451.0 GFLOPS

FP32 (float)

894.0 GFLOPS

37.58 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

106W

TDP

102W

300 W

Suggested PSU

300 W

1x DVI 1x DisplayPort 1x VGA

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

-

Graphics Processor

GF106

GPU Name

GF114

-

Fermi

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.17 billion

Transistors

1.95 billion

238 mm²

Die Size

332 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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