NVIDIA GeForce GTX 480 vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce GTX 480

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 480 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 480 's Advantages

Larger VRAM bandwidth (177.4GB/s vs 28.51GB/s)

96 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Released 2 years and 3 months late

More VRAM (2GB vs 1536GB)

Lower TDP (65W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 480 +94%

1.345 TFLOPS

GeForce GT 640

0.693 TFLOPS

GeForce GTX 480

VS

GeForce GT 640

Graphics Card

Mar 2010

Release Date

Jun 2012

GeForce 400

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

924 MHz

Memory Clock

891 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

128bit

177.4GB/s

Bandwidth

28.51GB/s

Render Config

-

15

SM Count

-

480

Shading Units

384

60

TMUs

32

48

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

21.03 GPixel/s

Pixel Rate

7.216 GPixel/s

42.06 GTexel/s

Texture Rate

28.86 GTexel/s

-

1345 GFLOPS

FP32 (float)

692.7 GFLOPS

168.1 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

250W

TDP

65W

600 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GF100

GPU Name

GK107

GF100-375-A3

GPU Variant

GK107-300-A2

Fermi

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

3.1 billion

Transistors

1.27 billion

529 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.0

CUDA

3.0

5.1

Shader Model

5.1

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