NVIDIA GeForce GT 640 vs NVIDIA P104 100

VS

NVIDIA GeForce GT 640

NVIDIA P104 100

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 4GB VRAM P104 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 130W)

NVIDIA P104 100 's Advantages

Released 5 years and 6 months late

Boost Clock1733MHz

More VRAM (4GB vs 2GB)

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

1536 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

P104 100 +860%

6.655 TFLOPS

Blender

GeForce GT 640

32

P104 100 +1753%

593

OctaneBench

GeForce GT 640

8

P104 100 +1450%

124

GeForce GT 640

VS

P104 100

Graphics Card

Jun 2012

Release Date

Dec 2017

GeForce 600

Generation

Mining GPUs

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1607 MHz

-

Boost Clock

1733 MHz

891 MHz

Memory Clock

1251 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR5X

128bit

Memory Bus

256bit

28.51GB/s

Bandwidth

320.3GB/s

Render Config

-

SM Count

15

384

Shading Units

1920

32

TMUs

120

16

ROPs

64

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

110.9 GPixel/s

28.86 GTexel/s

Texture Rate

208.0 GTexel/s

-

FP16 (half)

104.0 GFLOPS

692.7 GFLOPS

FP32 (float)

6.655 TFLOPS

28.86 GFLOPS

FP64 (double)

208.0 GFLOPS

Board Design

65W

TDP

130W

250 W

Suggested PSU

200 W

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

Outputs

No outputs

None

Power Connectors

1x 8-pin

Graphics Processor

GK107

GPU Name

GP104

GK107-300-A2

GPU Variant

GP104-100-A1

Kepler

Architecture

Pascal

TSMC

Foundry

TSMC

28 nm

Process Size

16 nm

1.27 billion

Transistors

7.2 billion

118 mm²

Die Size

314 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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