NVIDIA GeForce GT 545 OEM vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA GeForce GT 545 OEM

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 545 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 11 months late

Larger VRAM bandwidth (91.87GB/s vs 64.00GB/s)

144 additional rendering cores

Lower TDP (102W vs 105W)

Score

Benchmark

FP32 (float)

GeForce GT 545 OEM

0.501 TFLOPS

GeForce GT 645 OEM +78%

0.894 TFLOPS

GeForce GT 545 OEM

VS

GeForce GT 645 OEM

Graphics Card

May 2011

Release Date

Apr 2012

GeForce 500

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

957 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

64.00GB/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

5.226 GPixel/s

Pixel Rate

9.312 GPixel/s

20.90 GTexel/s

Texture Rate

37.25 GTexel/s

-

501.4 GFLOPS

FP32 (float)

894.0 GFLOPS

41.78 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

105W

TDP

102W

300 W

Suggested PSU

300 W

2x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

-

Graphics Processor

GF116

GPU Name

GF114

GF116-110-KA-A1

GPU Variant

-

Fermi 2.0

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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