NVIDIA GeForce RTX 4070 GDDR6 vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce RTX 4070 GDDR6

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 4070 GDDR6 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4070 GDDR6 's Advantages

Released 12 years and 2 months late

Boost Clock2475MHz

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (480.0GB/s vs 28.51GB/s)

5504 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 200W)

Score

Benchmark

FP32 (float)

GeForce RTX 4070 GDDR6 +4106%

29.15 TFLOPS

GeForce GT 640

0.693 TFLOPS

GeForce RTX 4070 GDDR6

VS

GeForce GT 640

Graphics Card

Aug 2024

Release Date

Jun 2012

GeForce 40

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1920 MHz

Base Clock

-

2475 MHz

Boost Clock

-

2500 MHz

Memory Clock

891 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

192bit

Memory Bus

128bit

480.0GB/s

Bandwidth

28.51GB/s

Render Config

-

46

SM Count

-

5888

Shading Units

384

184

TMUs

32

64

ROPs

16

184

Tensor Cores

-

46

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

36 MB

L2 Cache

256 KB

-

Theoretical Performance

158.4 GPixel/s

Pixel Rate

7.216 GPixel/s

455.4 GTexel/s

Texture Rate

28.86 GTexel/s

29.15 TFLOPS

FP16 (half)

-

29.15 TFLOPS

FP32 (float)

692.7 GFLOPS

455.4 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

200W

TDP

65W

550 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 16-pin

Power Connectors

None

Graphics Processor

AD104

GPU Name

GK107

AD104-2XX-A1

GPU Variant

GK107-300-A2

Ada Lovelace

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

35.8 billion

Transistors

1.27 billion

294 mm²

Die Size

118 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

8.9

CUDA

3.0

6.8

Shader Model

5.1

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