NVIDIA GeForce GT 640 OEM Rebrand vs NVIDIA GeForce RTX 4080 12 GB

VS

NVIDIA GeForce GT 640 OEM Rebrand

NVIDIA GeForce RTX 4080 12 GB

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 12GB VRAM GeForce RTX 4080 12 GB 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 285W)

NVIDIA GeForce RTX 4080 12 GB 's Advantages

Boost Clock2610MHz

More VRAM (12GB vs 1536GB)

Larger VRAM bandwidth (504.2GB/s vs 38.40GB/s)

7536 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

GeForce RTX 4080 12 GB +9560%

40.09 TFLOPS

GeForce GT 640 OEM Rebrand

VS

GeForce RTX 4080 12 GB

Graphics Card

Apr 2012

Release Date

Unknown

GeForce 600

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2310 MHz

-

Boost Clock

2610 MHz

800 MHz

Memory Clock

1313 MHz

Memory

1536MB

Memory Size

12GB

DDR3

Memory Type

GDDR6X

192bit

Memory Bus

192bit

38.40GB/s

Bandwidth

504.2GB/s

Render Config

-

3

SM Count

60

144

Shading Units

7680

24

TMUs

240

24

ROPs

80

-

Tensor Cores

240

-

RT Cores

60

64 KB (per SM)

L1 Cache

128 KB (per SM)

384 KB

L2 Cache

48 MB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

208.8 GPixel/s

17.28 GTexel/s

Texture Rate

626.4 GTexel/s

-

FP16 (half)

40.09 TFLOPS

414.7 GFLOPS

FP32 (float)

40.09 TFLOPS

34.56 GFLOPS

FP64 (double)

626.4 GFLOPS

Board Design

75W

TDP

285W

250 W

Suggested PSU

600 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

AD104

GF116-150-A1

GPU Variant

AD104-400-A1

Fermi 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

40 nm

Process Size

4 nm

1.17 billion

Transistors

35.8 billion

238 mm²

Die Size

295 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

8.9

5.1

Shader Model

6.6

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