NVIDIA GeForce GTX 1070 GDDR5X vs NVIDIA GeForce GTX 645 OEM

VS

NVIDIA GeForce GTX 1070 GDDR5X

NVIDIA GeForce GTX 645 OEM

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1070 GDDR5X and 1024MB VRAM GeForce GTX 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1070 GDDR5X 's Advantages

Released 5 years and 8 months late

Boost Clock1683MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (256.3GB/s vs 64.00GB/s)

1344 additional rendering cores

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 1070 GDDR5X +581%

6.463 TFLOPS

GeForce GTX 645 OEM

0.949 TFLOPS

GeForce GTX 1070 GDDR5X

VS

GeForce GTX 645 OEM

Graphics Card

Dec 2018

Release Date

Apr 2013

GeForce 10

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1506 MHz

Base Clock

-

1683 MHz

Boost Clock

-

1001 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

1024MB

GDDR5X

Memory Type

GDDR5

256bit

Memory Bus

128bit

256.3GB/s

Bandwidth

64.00GB/s

Render Config

-

15

SM Count

-

1920

Shading Units

576

120

TMUs

48

64

ROPs

16

-

48 KB (per SM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

107.7 GPixel/s

Pixel Rate

9.888 GPixel/s

202.0 GTexel/s

Texture Rate

39.55 GTexel/s

101.0 GFLOPS

FP16 (half)

-

6.463 TFLOPS

FP32 (float)

949.2 GFLOPS

202.0 GFLOPS

FP64 (double)

39.55 GFLOPS

Board Design

150W

TDP

65W

450 W

Suggested PSU

250 W

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

Outputs

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

1x 8-pin

Power Connectors

None

Graphics Processor

GP104

GPU Name

GK106

GP104-200-A1

GPU Variant

GK106-200-A1

Pascal

Architecture

Kepler

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

7.2 billion

Transistors

2.54 billion

314 mm²

Die Size

221 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

6.1

CUDA

3.0

6.4

Shader Model

5.1

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