NVIDIA GeForce GT 640 OEM Rebrand vs NVIDIA GeForce RTX 3090 Ti

VS

NVIDIA GeForce GT 640 OEM Rebrand

NVIDIA GeForce RTX 3090 Ti

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 24GB VRAM GeForce RTX 3090 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Lower TDP (75W vs 450W)

NVIDIA GeForce RTX 3090 Ti 's Advantages

Released 9 years and 9 months late

Boost Clock1860MHz

More VRAM (24GB vs 1536GB)

Larger VRAM bandwidth (1008GB/s vs 38.40GB/s)

10608 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

GeForce RTX 3090 Ti +9538%

40 TFLOPS

GeForce GT 640 OEM Rebrand

VS

GeForce RTX 3090 Ti

Graphics Card

Apr 2012

Release Date

Jan 2022

GeForce 600

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1560 MHz

-

Boost Clock

1860 MHz

800 MHz

Memory Clock

1313 MHz

Memory

1536MB

Memory Size

24GB

DDR3

Memory Type

GDDR6X

192bit

Memory Bus

384bit

38.40GB/s

Bandwidth

1008GB/s

Render Config

-

3

SM Count

84

144

Shading Units

10752

24

TMUs

336

24

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

64 KB (per SM)

L1 Cache

128 KB (per SM)

384 KB

L2 Cache

6 MB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

208.3 GPixel/s

17.28 GTexel/s

Texture Rate

625.0 GTexel/s

-

FP16 (half)

40.00 TFLOPS

414.7 GFLOPS

FP32 (float)

40.00 TFLOPS

34.56 GFLOPS

FP64 (double)

625.0 GFLOPS

Board Design

75W

TDP

450W

250 W

Suggested PSU

850 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 16-pin

Graphics Processor

GF116

GPU Name

GA102

GF116-150-A1

GPU Variant

GA102-350-A1

Fermi 2.0

Architecture

Ampere

TSMC

Foundry

Samsung

40 nm

Process Size

8 nm

1.17 billion

Transistors

28.3 billion

238 mm²

Die Size

628 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

8.6

5.1

Shader Model

6.6

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