NVIDIA GeForce RTX 3070 Ti vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA GeForce RTX 3070 Ti NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 3070 Ti and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3070 Ti 's Advantages

Released 9 years and 1 months late

Boost Clock1770MHz

More VRAM (8GB vs 1GB)

Larger VRAM bandwidth (608.3GB/s vs 91.87GB/s)

5856 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 290W)

Score

Benchmark

FP32 (float)

GeForce RTX 3070 Ti +2332%

21.75 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

GeForce RTX 3070 Ti

VS

GeForce GT 645 OEM

Graphics Card

May 2021

Release Date

Apr 2012

GeForce 30

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1575 MHz

Base Clock

-

1770 MHz

Boost Clock

-

1188 MHz

Memory Clock

957 MHz

Memory

8GB

Memory Size

1024MB

GDDR6X

Memory Type

GDDR5

256bit

Memory Bus

192bit

608.3GB/s

Bandwidth

91.87GB/s

Render Config

48

SM Count

6

-

Compute Units

-

6144

Shading Units

288

192

TMUs

48

96

ROPs

24

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

4 MB

L2 Cache

384 KB

Theoretical Performance

169.9 GPixel/s

Pixel Rate

9.312 GPixel/s

339.8 GTexel/s

Texture Rate

37.25 GTexel/s

21.75 TFLOPS

FP16 (half)

-

21.75 TFLOPS

FP32 (float)

894.0 GFLOPS

339.8 GFLOPS

FP64 (double)

74.50 GFLOPS

Graphics Processor

GA104

GPU Name

GF114

GA104-400-A1

GPU Variant

-

Ampere

Architecture

Fermi 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

17.4 billion

Transistors

1.95 billion

392 mm²

Die Size

332 mm²

Board Design

290W

TDP

102W

600 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 12-pin

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

8.6

CUDA

2.1

6.6

Shader Model

5.1

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