NVIDIA GeForce GTX 1070 vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce GTX 1070 NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1070 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1070 's Advantages

Released 4 years late

Boost Clock1683MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.3GB/s vs 28.51GB/s)

1536 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 1070 +832%

6.463 TFLOPS

GeForce GT 640

0.693 TFLOPS

GeForce GTX 1070

VS

GeForce GT 640

Graphics Card

Jun 2016

Release Date

Jun 2012

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

-

2002 MHz

Memory Clock

891 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

256.3GB/s

Bandwidth

28.51GB/s

Render Config

15

SM Count

-

Compute Units

-

1920

Shading Units

384

120

TMUs

32

64

ROPs

16

-

Tensor Cores

-

RT Cores

-

48 KB (per SM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

Theoretical Performance

107.7 GPixel/s

Pixel Rate

7.216 GPixel/s

202.0 GTexel/s

Texture Rate

28.86 GTexel/s

101.0 GFLOPS

FP16 (half)

-

6.463 TFLOPS

FP32 (float)

692.7 GFLOPS

202.0 GFLOPS

FP64 (double)

28.86 GFLOPS

Graphics Processor

GP104

GPU Name

GK107

GP104-200-A1

GPU Variant

GK107-300-A2

Pascal

Architecture

Kepler

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

7.2 billion

Transistors

1.27 billion

314 mm²

Die Size

118 mm²

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 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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