NVIDIA GeForce GT 640 vs NVIDIA GeForce GTX 470

VS

NVIDIA GeForce GT 640 NVIDIA GeForce GTX 470

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 1280MB VRAM GeForce GTX 470 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 2 years and 3 months late

More VRAM (2GB vs 1GB)

Lower TDP (65W vs 215W)

NVIDIA GeForce GTX 470 's Advantages

Larger VRAM bandwidth (133.9GB/s vs 28.51GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

GeForce GTX 470 +57%

1.089 TFLOPS

GeForce GT 640

VS

GeForce GTX 470

Graphics Card

Jun 2012

Release Date

Mar 2010

GeForce 600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

891 MHz

Memory Clock

837 MHz

Memory

2GB

Memory Size

1280MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

320bit

28.51GB/s

Bandwidth

133.9GB/s

Render Config

-

SM Count

14

-

Compute Units

-

384

Shading Units

448

32

TMUs

56

16

ROPs

40

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

640 KB

Theoretical Performance

7.216 GPixel/s

Pixel Rate

17.02 GPixel/s

28.86 GTexel/s

Texture Rate

34.05 GTexel/s

-

FP16 (half)

-

692.7 GFLOPS

FP32 (float)

1089 GFLOPS

28.86 GFLOPS

FP64 (double)

136.1 GFLOPS

Graphics Processor

GK107

GPU Name

GF100

GK107-300-A2

GPU Variant

GF100-275-A3

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

3.1 billion

118 mm²

Die Size

529 mm²

Board Design

65W

TDP

215W

250 W

Suggested PSU

550 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

None

Power Connectors

2x 6-pin

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

2.0

5.1

Shader Model

5.1

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