NVIDIA GeForce GT 640 OEM Rebrand vs NVIDIA RTX A1000

VS

NVIDIA GeForce GT 640 OEM Rebrand

NVIDIA RTX A1000

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 8GB VRAM RTX A1000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A1000 's Advantages

Released 12 years late

Boost Clock1462MHz

More VRAM (8GB vs 1536GB)

Larger VRAM bandwidth (192.0GB/s vs 38.40GB/s)

2160 additional rendering cores

Lower TDP (50W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

RTX A1000 +1523%

6.737 TFLOPS

GeForce GT 640 OEM Rebrand

VS

RTX A1000

Graphics Card

Apr 2012

Release Date

Apr 2024

GeForce 600

Generation

Quadro Ampere

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

727 MHz

-

Boost Clock

1462 MHz

800 MHz

Memory Clock

1500 MHz

Memory

1536MB

Memory Size

8GB

DDR3

Memory Type

GDDR6

192bit

Memory Bus

128bit

38.40GB/s

Bandwidth

192.0GB/s

Render Config

-

3

SM Count

18

144

Shading Units

2304

24

TMUs

72

24

ROPs

32

-

Tensor Cores

72

-

RT Cores

18

64 KB (per SM)

L1 Cache

128 KB (per SM)

384 KB

L2 Cache

2 MB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

46.78 GPixel/s

17.28 GTexel/s

Texture Rate

105.3 GTexel/s

-

FP16 (half)

6.737 TFLOPS

414.7 GFLOPS

FP32 (float)

6.737 TFLOPS

34.56 GFLOPS

FP64 (double)

105.3 GFLOPS

Board Design

75W

TDP

50W

250 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

4x mini-DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

GF116

GPU Name

GA107

GF116-150-A1

GPU Variant

-

Fermi 2.0

Architecture

Ampere

TSMC

Foundry

Samsung

40 nm

Process Size

8 nm

1.17 billion

Transistors

8.7 billion

238 mm²

Die Size

200 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

6.7

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