NVIDIA GeForce GT 640 vs NVIDIA T1000 8 GB

VS

NVIDIA GeForce GT 640

NVIDIA T1000 8 GB

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 8GB VRAM T1000 8 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA T1000 8 GB 's Advantages

Released 8 years and 11 months late

Boost Clock1395MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (160.0GB/s vs 28.51GB/s)

512 additional rendering cores

Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

T1000 8 GB +260%

2.5 TFLOPS

Blender

GeForce GT 640

32

T1000 8 GB +1271%

439

OctaneBench

GeForce GT 640

8

T1000 8 GB +812%

73

GeForce GT 640

VS

T1000 8 GB

Graphics Card

Jun 2012

Release Date

May 2021

GeForce 600

Generation

Quadro

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1065 MHz

-

Boost Clock

1395 MHz

891 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

8GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

128bit

28.51GB/s

Bandwidth

160.0GB/s

Render Config

-

SM Count

14

384

Shading Units

896

32

TMUs

56

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

44.64 GPixel/s

28.86 GTexel/s

Texture Rate

78.12 GTexel/s

-

FP16 (half)

5.000 TFLOPS

692.7 GFLOPS

FP32 (float)

2.500 TFLOPS

28.86 GFLOPS

FP64 (double)

78.12 GFLOPS

Board Design

65W

TDP

50W

250 W

Suggested PSU

250 W

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

Outputs

4x mini-DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

GK107

GPU Name

TU117

GK107-300-A2

GPU Variant

-

Kepler

Architecture

Turing

TSMC

Foundry

TSMC

28 nm

Process Size

12 nm

1.27 billion

Transistors

4.7 billion

118 mm²

Die Size

200 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

7.5

5.1

Shader Model

6.6

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