NVIDIA RTX A4000H vs NVIDIA GeForce GT 640 OEM

VS

NVIDIA RTX A4000H

NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 16GB VRAM RTX A4000H and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4000H 's Advantages

Released 9 years late

Boost Clock1560MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 28.51GB/s)

5760 additional rendering cores

NVIDIA GeForce GT 640 OEM 's Advantages

Lower TDP (50W vs 140W)

Score

Benchmark

FP32 (float)

RTX A4000H +3032%

19.17 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

RTX A4000H

VS

GeForce GT 640 OEM

Graphics Card

Apr 2021

Release Date

Apr 2012

Quadro Ampere

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

735 MHz

Base Clock

-

1560 MHz

Boost Clock

-

1750 MHz

Memory Clock

891 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

128bit

448.0GB/s

Bandwidth

28.51GB/s

Render Config

-

48

SM Count

-

6144

Shading Units

384

192

TMUs

32

96

ROPs

16

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

256 KB

-

Theoretical Performance

149.8 GPixel/s

Pixel Rate

6.376 GPixel/s

299.5 GTexel/s

Texture Rate

25.50 GTexel/s

19.17 TFLOPS

FP16 (half)

-

19.17 TFLOPS

FP32 (float)

612.1 GFLOPS

299.5 GFLOPS

FP64 (double)

25.50 GFLOPS

Board Design

140W

TDP

50W

300 W

Suggested PSU

250 W

4x DisplayPort 1.4a

Outputs

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

1x 6-pin

Power Connectors

None

Graphics Processor

GA104

GPU Name

GK107

GA104-???-A1

GPU Variant

GK107-320-A2

Ampere

Architecture

Kepler

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

1.27 billion

392 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

8.6

CUDA

3.0

6.7

Shader Model

5.1

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