NVIDIA GeForce GT 645 OEM vs NVIDIA GeForce GTX 950 Low Power

VS

NVIDIA GeForce GT 645 OEM

NVIDIA GeForce GTX 950 Low Power

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 2GB VRAM GeForce GTX 950 Low Power to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 950 Low Power 's Advantages

Released 3 years and 11 months late

Boost Clock1190MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (105.8GB/s vs 91.87GB/s)

480 additional rendering cores

Lower TDP (75W vs 102W)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

GeForce GTX 950 Low Power +104%

1.828 TFLOPS

GeForce GT 645 OEM

VS

GeForce GTX 950 Low Power

Graphics Card

Apr 2012

Release Date

Mar 2016

GeForce 600

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1026 MHz

-

Boost Clock

1190 MHz

957 MHz

Memory Clock

1653 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

105.8GB/s

Render Config

-

6

SM Count

-

288

Shading Units

768

48

TMUs

48

24

ROPs

32

-

64 KB (per SM)

L1 Cache

48 KB (per SMM)

384 KB

L2 Cache

1024 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

38.08 GPixel/s

37.25 GTexel/s

Texture Rate

57.12 GTexel/s

-

894.0 GFLOPS

FP32 (float)

1.828 TFLOPS

74.50 GFLOPS

FP64 (double)

57.12 GFLOPS

Board Design

102W

TDP

75W

300 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

-

Power Connectors

None

Graphics Processor

GF114

GPU Name

GM206

-

GPU Variant

GM206-251-A1

Fermi 2.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

2.94 billion

332 mm²

Die Size

228 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

2.1

CUDA

5.2

5.1

Shader Model

6.4

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