NVIDIA GeForce GT 640 vs NVIDIA GeForce GT 120 OEM

VS

NVIDIA GeForce GT 640

NVIDIA GeForce GT 120 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 512MB VRAM GeForce GT 120 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 3 years and 3 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (28.51GB/s vs 16.13GB/s)

352 additional rendering cores

NVIDIA GeForce GT 120 OEM 's Advantages

Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GT 640 +487%

0.693 TFLOPS

GeForce GT 120 OEM

0.118 TFLOPS

GeForce GT 640

VS

GeForce GT 120 OEM

Graphics Card

Jun 2012

Release Date

Mar 2009

GeForce 600

Generation

GeForce 100

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

891 MHz

Memory Clock

504 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

DDR2

128bit

Memory Bus

128bit

28.51GB/s

Bandwidth

16.13GB/s

Render Config

-

SM Count

4

384

Shading Units

32

TMUs

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

32 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

5.904 GPixel/s

28.86 GTexel/s

Texture Rate

11.81 GTexel/s

-

692.7 GFLOPS

FP32 (float)

117.5 GFLOPS

28.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

50W

250 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Processor

GK107

GPU Name

G96C

GK107-300-A2

GPU Variant

-

Kepler

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.27 billion

Transistors

0.314 billion

118 mm²

Die Size

121 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

1.1

5.1

Shader Model

4.0

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