NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA T1000

VS

NVIDIA GeForce GT 640 Rev. 2 NVIDIA T1000

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 640 Rev. 2 and 4GB VRAM T1000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Lower TDP (49W vs 50W)

NVIDIA T1000 's Advantages

Released 8 years late

Boost Clock1395MHz

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (160.0GB/s vs 40.06GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 Rev. 2

0.803 TFLOPS

T1000 +211%

2.5 TFLOPS

GeForce GT 640 Rev. 2

VS

T1000

Graphics Card

May 2013

Release Date

May 2021

GeForce 600

Generation

Quadro

Desktop

Type

Desktop

PCIe 2.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1065 MHz

-

Boost Clock

1395 MHz

1252 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

128bit

40.06GB/s

Bandwidth

160.0GB/s

Render Config

-

SM Count

14

-

Compute Units

-

384

Shading Units

896

32

TMUs

56

8

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

1024 KB

Theoretical Performance

8.368 GPixel/s

Pixel Rate

44.64 GPixel/s

33.47 GTexel/s

Texture Rate

78.12 GTexel/s

-

FP16 (half)

5.000 TFLOPS

803.3 GFLOPS

FP32 (float)

2.500 TFLOPS

33.47 GFLOPS

FP64 (double)

78.12 GFLOPS

Graphics Processor

GK208

GPU Name

TU117

GK208-400-A1

GPU Variant

-

Kepler 2.0

Architecture

Turing

TSMC

Foundry

TSMC

28 nm

Process Size

12 nm

1.02 billion

Transistors

4.7 billion

87 mm²

Die Size

200 mm²

Board Design

49W

TDP

50W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 1x VGA

Outputs

4x mini-DisplayPort 1.4a

None

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

7.5

5.1

Shader Model

6.6

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