NVIDIA GeForce GT 640 vs NVIDIA P102 100

VS

NVIDIA GeForce GT 640

NVIDIA P102 100

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 5GB VRAM P102 100 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 100 's Advantages

Released 5 years and 8 months late

Boost Clock1683MHz

More VRAM (5GB vs 2GB)

Larger VRAM bandwidth (440.3GB/s vs 28.51GB/s)

2816 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

P102 100 +1454%

10.77 TFLOPS

Blender

GeForce GT 640

32

P102 100 +2584%

859

OctaneBench

GeForce GT 640

8

P102 100 +2200%

184

GeForce GT 640

VS

P102 100

Graphics Card

Jun 2012

Release Date

Feb 2018

GeForce 600

Generation

Mining GPUs

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x4

Clock Speeds

-

Base Clock

1582 MHz

-

Boost Clock

1683 MHz

891 MHz

Memory Clock

1376 MHz

Memory

2GB

Memory Size

5GB

DDR3

Memory Type

GDDR5X

128bit

Memory Bus

320bit

28.51GB/s

Bandwidth

440.3GB/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

134.6 GPixel/s

28.86 GTexel/s

Texture Rate

336.6 GTexel/s

-

FP16 (half)

168.3 GFLOPS

692.7 GFLOPS

FP32 (float)

10.77 TFLOPS

28.86 GFLOPS

FP64 (double)

336.6 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

GP102-100-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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