NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce GT 705 OEM

VS

NVIDIA GeForce GTX 645 OEM

NVIDIA GeForce GT 705 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 1024MB VRAM GeForce GT 705 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 13.20GB/s)

528 additional rendering cores

NVIDIA GeForce GT 705 OEM 's Advantages

Released 11 months late

Lower TDP (29W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM +464%

0.949 TFLOPS

GeForce GT 705 OEM

0.168 TFLOPS

GeForce GTX 645 OEM

VS

GeForce GT 705 OEM

Graphics Card

Apr 2013

Release Date

Mar 2014

GeForce 600

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

825 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

13.20GB/s

Render Config

-

SM Count

1

576

Shading Units

48

TMUs

8

16

ROPs

4

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

1.748 GPixel/s

39.55 GTexel/s

Texture Rate

6.992 GTexel/s

-

949.2 GFLOPS

FP32 (float)

167.8 GFLOPS

39.55 GFLOPS

FP64 (double)

13.98 GFLOPS

Board Design

65W

TDP

29W

250 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

-

Graphics Processor

GK106

GPU Name

GF119

GK106-200-A1

GPU Variant

GF119-300-A1

Kepler

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.54 billion

Transistors

0.292 billion

221 mm²

Die Size

79 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

2.1

5.1

Shader Model

5.1

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