NVIDIA GeForce GTX 780 vs NVIDIA GeForce GT 420 OEM

VS

NVIDIA GeForce GTX 780

NVIDIA GeForce GT 420 OEM

We compared two Desktop platform GPUs: 3GB VRAM GeForce GTX 780 and 1024MB VRAM GeForce GT 420 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 's Advantages

Released 2 years and 8 months late

Boost Clock902MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.4GB/s vs 28.80GB/s)

2256 additional rendering cores

NVIDIA GeForce GT 420 OEM 's Advantages

Lower TDP (50W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 +3001%

4.156 TFLOPS

GeForce GT 420 OEM

0.134 TFLOPS

GeForce GTX 780

VS

GeForce GT 420 OEM

Graphics Card

May 2013

Release Date

Sep 2010

GeForce 700

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

863 MHz

Base Clock

-

902 MHz

Boost Clock

-

1502 MHz

Memory Clock

900 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

128bit

288.4GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

1

2304

Shading Units

48

192

TMUs

4

48

ROPs

4

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

1536 KB

L2 Cache

256 KB

-

Theoretical Performance

43.30 GPixel/s

Pixel Rate

1.400 GPixel/s

173.2 GTexel/s

Texture Rate

2.800 GTexel/s

-

4.156 TFLOPS

FP32 (float)

134.4 GFLOPS

173.2 GFLOPS

FP64 (double)

11.20 GFLOPS

Board Design

250W

TDP

50W

600 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GK110

GPU Name

GF108

GK110-300-A1

GPU Variant

GF108-200-A1

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

7.08 billion

Transistors

0.585 billion

561 mm²

Die Size

116 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.5

CUDA

2.1

5.1

Shader Model

5.1

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