NVIDIA GeForce GT 640 vs NVIDIA GeForce GT 230 OEM

VS

NVIDIA GeForce GT 640

NVIDIA GeForce GT 230 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 1536MB VRAM GeForce GT 230 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 2 months late

More VRAM (2GB vs 1536GB)

Larger VRAM bandwidth (28.51GB/s vs 24.00GB/s)

288 additional rendering cores

Lower TDP (65W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GT 640 +188%

0.693 TFLOPS

GeForce GT 230 OEM

0.24 TFLOPS

GeForce GT 640

VS

GeForce GT 230 OEM

Graphics Card

Jun 2012

Release Date

Apr 2009

GeForce 600

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

891 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

1536MB

DDR3

Memory Type

DDR2

128bit

Memory Bus

192bit

28.51GB/s

Bandwidth

24.00GB/s

Render Config

-

SM Count

12

384

Shading Units

96

32

TMUs

48

16

ROPs

12

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

48 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

6.000 GPixel/s

28.86 GTexel/s

Texture Rate

24.00 GTexel/s

-

692.7 GFLOPS

FP32 (float)

240.0 GFLOPS

28.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

75W

250 W

Suggested PSU

250 W

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

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GK107

GPU Name

G92B

GK107-300-A2

GPU Variant

G92-159-B1

Kepler

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.27 billion

Transistors

0.754 billion

118 mm²

Die Size

260 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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