NVIDIA GeForce RTX 5090 vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce RTX 5090

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 32GB VRAM GeForce RTX 5090 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 5090 's Advantages

Released 12 years and 7 months late

Boost Clock2520MHz

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (1.52TB/s vs 28.51GB/s)

21376 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 500W)

Score

Benchmark

FP32 (float)

GeForce RTX 5090 +15729%

109.7 TFLOPS

GeForce GT 640

0.693 TFLOPS

GeForce RTX 5090

VS

GeForce GT 640

Graphics Card

Jan 2025

Release Date

Jun 2012

GeForce 50

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2235 MHz

Base Clock

-

2520 MHz

Boost Clock

-

1875 MHz

Memory Clock

891 MHz

Memory

32GB

Memory Size

2GB

GDDR7

Memory Type

DDR3

512bit

Memory Bus

128bit

1.52TB/s

Bandwidth

28.51GB/s

Render Config

-

170

SM Count

-

21760

Shading Units

384

680

TMUs

32

192

ROPs

16

680

Tensor Cores

-

170

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

88 MB

L2 Cache

256 KB

-

Theoretical Performance

483.8 GPixel/s

Pixel Rate

7.216 GPixel/s

1714 GTexel/s

Texture Rate

28.86 GTexel/s

109.7 TFLOPS

FP16 (half)

-

109.7 TFLOPS

FP32 (float)

692.7 GFLOPS

1.714 TFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

500W

TDP

65W

900 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 2.1a

Outputs

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

1x 16-pin

Power Connectors

None

Graphics Processor

GB202

GPU Name

GK107

GB202-400-A1

GPU Variant

GK107-300-A2

Blackwell 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

Unknown

Transistors

1.27 billion

Unknown

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

10.1

CUDA

3.0

6.8

Shader Model

5.1

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