NVIDIA GeForce GT 645 OEM vs NVIDIA GeForce GTX 950 OEM

VS

NVIDIA GeForce GT 645 OEM

NVIDIA GeForce GTX 950 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 4GB VRAM GeForce GTX 950 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

Larger VRAM bandwidth (91.87GB/s vs 80.19GB/s)

NVIDIA GeForce GTX 950 OEM 's Advantages

Released 3 years and 9 months late

Boost Clock1203MHz

More VRAM (4GB vs 1024GB)

736 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

GeForce GTX 950 OEM +175%

2.464 TFLOPS

GeForce GT 645 OEM

VS

GeForce GTX 950 OEM

Graphics Card

Apr 2012

Release Date

Jan 2016

GeForce 600

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

937 MHz

-

Boost Clock

1203 MHz

957 MHz

Memory Clock

1253 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

80.19GB/s

Render Config

-

6

SM Count

-

288

Shading Units

1024

48

TMUs

64

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

38.50 GPixel/s

37.25 GTexel/s

Texture Rate

76.99 GTexel/s

-

894.0 GFLOPS

FP32 (float)

2.464 TFLOPS

74.50 GFLOPS

FP64 (double)

76.99 GFLOPS

Board Design

102W

TDP

Unknown

300 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GF114

GPU Name

GM206S

-

GPU Variant

950 OEM

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

6.7

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