NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce RTX 3070

VS

NVIDIA GeForce GT 640 Rev. 2 NVIDIA GeForce RTX 3070

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 640 Rev. 2 and 8GB VRAM GeForce RTX 3070 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

Lower TDP (49W vs 220W)

NVIDIA GeForce RTX 3070 's Advantages

Released 7 years and 4 months late

Boost Clock1725MHz

More VRAM (8GB vs 1GB)

Larger VRAM bandwidth (448.0GB/s vs 40.06GB/s)

5504 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 Rev. 2

0.803 TFLOPS

GeForce RTX 3070 +2429%

20.31 TFLOPS

GeForce GT 640 Rev. 2

VS

GeForce RTX 3070

Graphics Card

May 2013

Release Date

Sep 2020

GeForce 600

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 2.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1500 MHz

-

Boost Clock

1725 MHz

1252 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

256bit

40.06GB/s

Bandwidth

448.0GB/s

Render Config

-

SM Count

46

-

Compute Units

-

384

Shading Units

5888

32

TMUs

184

8

ROPs

96

-

Tensor Cores

184

-

RT Cores

46

16 KB (per SMX)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

4 MB

Theoretical Performance

8.368 GPixel/s

Pixel Rate

165.6 GPixel/s

33.47 GTexel/s

Texture Rate

317.4 GTexel/s

-

FP16 (half)

20.31 TFLOPS

803.3 GFLOPS

FP32 (float)

20.31 TFLOPS

33.47 GFLOPS

FP64 (double)

317.4 GFLOPS

Graphics Processor

GK208

GPU Name

GA104

GK208-400-A1

GPU Variant

GA104-300-A1

Kepler 2.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

1.02 billion

Transistors

17.4 billion

87 mm²

Die Size

392 mm²

Board Design

49W

TDP

220W

200 W

Suggested PSU

550 W

1x DVI 1x HDMI 1.4a 1x VGA

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 12-pin

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

3.5

CUDA

8.6

5.1

Shader Model

6.6

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