NVIDIA GeForce GT 645 OEM vs NVIDIA GeForce RTX 4070

VS

NVIDIA GeForce GT 645 OEM

NVIDIA GeForce RTX 4070

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 12GB VRAM GeForce RTX 4070 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)

NVIDIA GeForce RTX 4070 's Advantages

Released 11 years late

Boost Clock2475MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (504.2GB/s vs 91.87GB/s)

5600 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

GeForce RTX 4070 +3160%

29.15 TFLOPS

GeForce GT 645 OEM

VS

GeForce RTX 4070

Graphics Card

Apr 2012

Release Date

Apr 2023

GeForce 600

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1920 MHz

-

Boost Clock

2475 MHz

957 MHz

Memory Clock

1313 MHz

Memory

1024MB

Memory Size

12GB

GDDR5

Memory Type

GDDR6X

192bit

Memory Bus

192bit

91.87GB/s

Bandwidth

504.2GB/s

Render Config

-

6

SM Count

46

288

Shading Units

5888

48

TMUs

184

24

ROPs

64

-

Tensor Cores

184

-

RT Cores

46

64 KB (per SM)

L1 Cache

128 KB (per SM)

384 KB

L2 Cache

36 MB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

158.4 GPixel/s

37.25 GTexel/s

Texture Rate

455.4 GTexel/s

-

FP16 (half)

29.15 TFLOPS

894.0 GFLOPS

FP32 (float)

29.15 TFLOPS

74.50 GFLOPS

FP64 (double)

455.4 GFLOPS

Board Design

102W

TDP

200W

300 W

Suggested PSU

550 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

-

Power Connectors

1x 16-pin

Graphics Processor

GF114

GPU Name

AD104

-

GPU Variant

AD104-250-A1

Fermi 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

40 nm

Process Size

5 nm

1.95 billion

Transistors

35.8 billion

332 mm²

Die Size

295 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

8.9

5.1

Shader Model

6.7

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