NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce GT 1030 DDR4

VS

NVIDIA GeForce GT 640 Rev. 2 NVIDIA GeForce GT 1030 DDR4

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 640 Rev. 2 and 2GB VRAM GeForce GT 1030 DDR4 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Larger VRAM bandwidth (40.06GB/s vs 16.80GB/s)

NVIDIA GeForce GT 1030 DDR4 's Advantages

Released 4 years and 10 months late

Boost Clock1379MHz

More VRAM (2GB vs 1GB)

Lower TDP (20W vs 49W)

Score

Benchmark

FP32 (float)

GeForce GT 640 Rev. 2

0.803 TFLOPS

GeForce GT 1030 DDR4 +31%

1.059 TFLOPS

GeForce GT 640 Rev. 2

VS

GeForce GT 1030 DDR4

Graphics Card

May 2013

Release Date

Mar 2018

GeForce 600

Generation

GeForce 10

Desktop

Type

Desktop

PCIe 2.0 x8

Bus Interface

PCIe 3.0 x4

Clock Speeds

-

Base Clock

1152 MHz

-

Boost Clock

1379 MHz

1252 MHz

Memory Clock

1050 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR4

64bit

Memory Bus

64bit

40.06GB/s

Bandwidth

16.80GB/s

Render Config

-

SM Count

3

-

Compute Units

-

384

Shading Units

384

32

TMUs

24

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

512 KB

L2 Cache

512 KB

Theoretical Performance

8.368 GPixel/s

Pixel Rate

22.06 GPixel/s

33.47 GTexel/s

Texture Rate

33.10 GTexel/s

-

FP16 (half)

16.55 GFLOPS

803.3 GFLOPS

FP32 (float)

1059 GFLOPS

33.47 GFLOPS

FP64 (double)

33.10 GFLOPS

Graphics Processor

GK208

GPU Name

GP108

GK208-400-A1

GPU Variant

GP108-310-A1

Kepler 2.0

Architecture

Pascal

TSMC

Foundry

Samsung

28 nm

Process Size

14 nm

1.02 billion

Transistors

1.8 billion

87 mm²

Die Size

74 mm²

Board Design

49W

TDP

20W

200 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 1x VGA

Outputs

1x DVI 1x HDMI 2.0

None

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

6.1

5.1

Shader Model

6.4

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