NVIDIA GeForce GT 340 OEM vs NVIDIA GeForce GT 640 Rev. 2

VS

NVIDIA GeForce GT 340 OEM

NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 340 OEM and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Released 3 years and 3 months late

Larger VRAM bandwidth (40.06GB/s vs 27.20GB/s)

288 additional rendering cores

Lower TDP (49W vs 69W)

Score

Benchmark

FP32 (float)

GeForce GT 340 OEM

0.257 TFLOPS

GeForce GT 640 Rev. 2 +212%

0.803 TFLOPS

GeForce GT 340 OEM

VS

GeForce GT 640 Rev. 2

Graphics Card

Feb 2010

Release Date

May 2013

GeForce 300

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

-

850 MHz

Memory Clock

1252 MHz

Memory

1024MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

27.20GB/s

Bandwidth

40.06GB/s

Render Config

-

12

SM Count

-

96

Shading Units

384

32

TMUs

32

8

ROPs

8

-

L1 Cache

16 KB (per SMX)

64 KB

L2 Cache

512 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

8.368 GPixel/s

17.60 GTexel/s

Texture Rate

33.47 GTexel/s

-

257.3 GFLOPS

FP32 (float)

803.3 GFLOPS

-

FP64 (double)

33.47 GFLOPS

Board Design

69W

TDP

49W

250 W

Suggested PSU

200 W

1x DVI 1x HDMI 1x VGA

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

None

Power Connectors

None

Graphics Processor

GT215

GPU Name

GK208

GT215-301-A3

GPU Variant

GK208-400-A1

Tesla 2.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.727 billion

Transistors

1.02 billion

144 mm²

Die Size

87 mm²

Graphics Features

11.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

1.2

CUDA

3.5

4.1

Shader Model

5.1

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