NVIDIA GeForce GT 645 OEM vs Intel Arc A780

VS

NVIDIA GeForce GT 645 OEM

Intel Arc A780

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM 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 645 OEM 's Advantages

Lower TDP (102W vs 200W)

Intel Arc A780 's Advantages

Boost Clock2200MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (559.6GB/s vs 91.87GB/s)

3808 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

Arc A780 +1915%

18.02 TFLOPS

GeForce GT 645 OEM

VS

Arc A780

Graphics Card

Apr 2012

Release Date

Unknown

GeForce 600

Generation

Alchemist(Arc 7)

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2200 MHz

-

Boost Clock

2200 MHz

957 MHz

Memory Clock

1093 MHz

Memory

1024MB

Memory Size

16GB

GDDR5

Memory Type

GDDR6X

192bit

Memory Bus

256bit

91.87GB/s

Bandwidth

559.6GB/s

Render Config

-

6

SM Count

-

288

Shading Units

4096

48

TMUs

256

24

ROPs

128

-

Tensor Cores

512

-

RT Cores

32

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

16 MB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

281.6 GPixel/s

37.25 GTexel/s

Texture Rate

563.2 GTexel/s

-

FP16 (half)

36.04 TFLOPS

894.0 GFLOPS

FP32 (float)

18.02 TFLOPS

74.50 GFLOPS

FP64 (double)

2.253 TFLOPS

Board Design

102W

TDP

200W

300 W

Suggested PSU

550 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x HDMI 2.13x DisplayPort 2.0

-

Power Connectors

2x 8-pin

Graphics Processor

GF114

GPU Name

DG2-512

-

GPU Variant

ACM-G10

Fermi 2.0

Architecture

Generation 12.7

TSMC

Foundry

TSMC

40 nm

Process Size

6 nm

1.95 billion

Transistors

21.7 billion

332 mm²

Die Size

406 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

2.1

CUDA

-

5.1

Shader Model

6.6

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