NVIDIA GeForce GT 640 vs Intel Arc A780

VS

NVIDIA GeForce GT 640

Intel Arc A780

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 16GB VRAM Arc A780 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 200W)

Intel Arc A780 's Advantages

Boost Clock2200MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (559.6GB/s vs 28.51GB/s)

3712 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

Arc A780 +2500%

18.02 TFLOPS

GeForce GT 640

VS

Arc A780

Graphics Card

Jun 2012

Release Date

Unknown

GeForce 600

Generation

Alchemist(Arc 7)

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2200 MHz

-

Boost Clock

2200 MHz

891 MHz

Memory Clock

1093 MHz

Memory

2GB

Memory Size

16GB

DDR3

Memory Type

GDDR6X

128bit

Memory Bus

256bit

28.51GB/s

Bandwidth

559.6GB/s

Render Config

-

384

Shading Units

4096

32

TMUs

256

16

ROPs

128

-

Tensor Cores

512

-

RT Cores

32

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

16 MB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

281.6 GPixel/s

28.86 GTexel/s

Texture Rate

563.2 GTexel/s

-

FP16 (half)

36.04 TFLOPS

692.7 GFLOPS

FP32 (float)

18.02 TFLOPS

28.86 GFLOPS

FP64 (double)

2.253 TFLOPS

Board Design

65W

TDP

200W

250 W

Suggested PSU

550 W

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

Outputs

1x HDMI 2.13x DisplayPort 2.0

None

Power Connectors

2x 8-pin

Graphics Processor

GK107

GPU Name

DG2-512

GK107-300-A2

GPU Variant

ACM-G10

Kepler

Architecture

Generation 12.7

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

1.27 billion

Transistors

21.7 billion

118 mm²

Die Size

406 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.6

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