NVIDIA GeForce GT 640 vs NVIDIA P102 101

VS

NVIDIA GeForce GT 640

NVIDIA P102 101

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 10GB VRAM P102 101 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 250W)

NVIDIA P102 101 's Advantages

Released 5 years and 7 months late

Boost Clock1670MHz

More VRAM (10GB vs 2GB)

Larger VRAM bandwidth (320.3GB/s vs 28.51GB/s)

2816 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

P102 101 +1442%

10.69 TFLOPS

GeForce GT 640

VS

P102 101

Graphics Card

Jun 2012

Release Date

Jan 2018

GeForce 600

Generation

Mining GPUs

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x4

Clock Speeds

-

Base Clock

1557 MHz

-

Boost Clock

1670 MHz

891 MHz

Memory Clock

2002 MHz

Memory

2GB

Memory Size

10GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

320bit

28.51GB/s

Bandwidth

320.3GB/s

Render Config

-

SM Count

25

384

Shading Units

3200

32

TMUs

200

16

ROPs

80

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

256 KB

L2 Cache

0 MB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

133.6 GPixel/s

28.86 GTexel/s

Texture Rate

334.0 GTexel/s

-

FP16 (half)

167.0 GFLOPS

692.7 GFLOPS

FP32 (float)

10.69 TFLOPS

28.86 GFLOPS

FP64 (double)

334.0 GFLOPS

Board Design

65W

TDP

250W

250 W

Suggested PSU

600 W

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

Outputs

No outputs

None

Power Connectors

2x 8-pin

Graphics Processor

GK107

GPU Name

GP102

GK107-300-A2

GPU Variant

GP102-101-A1

Kepler

Architecture

Pascal

TSMC

Foundry

TSMC

28 nm

Process Size

16 nm

1.27 billion

Transistors

11.8 billion

118 mm²

Die Size

471 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

6.1

5.1

Shader Model

6.4

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