NVIDIA GeForce GT 645 OEM vs NVIDIA NVS 1000

VS

NVIDIA GeForce GT 645 OEM

NVIDIA NVS 1000

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 2GB VRAM NVS 1000 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 28.51GB/s)

96 additional rendering cores

NVIDIA NVS 1000 's Advantages

More VRAM (2GB vs 1024GB)

Lower TDP (35W vs 102W)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM +192%

0.894 TFLOPS

NVS 1000

0.306 TFLOPS

GeForce GT 645 OEM

VS

NVS 1000

Graphics Card

Apr 2012

Release Date

Unknown

GeForce 600

Generation

NVS

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

957 MHz

Memory Clock

891 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

28.51GB/s

Render Config

-

6

SM Count

-

288

Shading Units

192

48

TMUs

16

24

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

3.188 GPixel/s

37.25 GTexel/s

Texture Rate

12.75 GTexel/s

-

894.0 GFLOPS

FP32 (float)

306.0 GFLOPS

74.50 GFLOPS

FP64 (double)

12.75 GFLOPS

Board Design

102W

TDP

35W

300 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

4x mini-DisplayPort 1.2

-

Graphics Processor

GF114

GPU Name

GK107

-

Fermi 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

1.27 billion

332 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.0

5.1

Shader Model

5.1

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