NVIDIA GeForce GT 645 OEM vs NVIDIA GeForce GTS 450 Rev. 3

VS

NVIDIA GeForce GT 645 OEM

NVIDIA GeForce GTS 450 Rev. 3

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 1024MB VRAM GeForce GTS 450 Rev. 3 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Larger VRAM bandwidth (91.87GB/s vs 22.40GB/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 Rev. 3

0.451 TFLOPS

GeForce GT 645 OEM

VS

GeForce GTS 450 Rev. 3

Graphics Card

Apr 2012

Release Date

Jul 2012

GeForce 600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

957 MHz

Memory Clock

700 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

22.40GB/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

2x DVI 1x mini-HDMI 1.3a

-

Graphics Processor

GF114

GPU Name

GF116

-

GPU Variant

GF116-200-KA-A1

Fermi 2.0

Architecture

Fermi 2.0

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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