NVIDIA GeForce GT 645 OEM vs NVIDIA GeForce GTX 550 Ti

VS

NVIDIA GeForce GT 645 OEM

NVIDIA GeForce GTX 550 Ti

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 1024MB VRAM GeForce GTX 550 Ti 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 1 months late

96 additional rendering cores

Lower TDP (102W vs 116W)

NVIDIA GeForce GTX 550 Ti 's Advantages

Larger VRAM bandwidth (98.50GB/s vs 91.87GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM +29%

0.894 TFLOPS

GeForce GTX 550 Ti

0.691 TFLOPS

GeForce GT 645 OEM

VS

GeForce GTX 550 Ti

Graphics Card

Apr 2012

Release Date

Mar 2011

GeForce 600

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

957 MHz

Memory Clock

1026 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

192bit

91.87GB/s

Bandwidth

98.50GB/s

Render Config

-

6

SM Count

4

288

Shading Units

192

48

TMUs

32

24

ROPs

24

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

384 KB

L2 Cache

384 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

7.200 GPixel/s

37.25 GTexel/s

Texture Rate

28.80 GTexel/s

-

894.0 GFLOPS

FP32 (float)

691.2 GFLOPS

74.50 GFLOPS

FP64 (double)

57.60 GFLOPS

Board Design

102W

TDP

116W

300 W

Suggested PSU

300 W

2x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI 1x mini-HDMI 1.3a

-

Power Connectors

1x 6-pin

Graphics Processor

GF114

GPU Name

GF116

-

GPU Variant

GF116-400-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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