ATI Radeon HD 3830 vs NVIDIA GeForce GT 420 OEM

VS

ATI Radeon HD 3830

NVIDIA GeForce GT 420 OEM

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 3830 and 1024MB VRAM GeForce GT 420 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3830 's Advantages

272 additional rendering cores

NVIDIA GeForce GT 420 OEM 's Advantages

Released 2 years and 5 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (28.80GB/s vs 26.50GB/s)

Lower TDP (50W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 3830 +219%

0.428 TFLOPS

GeForce GT 420 OEM

0.134 TFLOPS

Radeon HD 3830

VS

GeForce GT 420 OEM

Graphics Card

Apr 2008

Release Date

Sep 2010

Radeon R600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

828 MHz

Memory Clock

900 MHz

Memory

256MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

26.50GB/s

Bandwidth

28.80GB/s

Render Config

4

Compute Units

-

SM Count

1

320

Shading Units

48

16

TMUs

4

16

ROPs

4

-

L1 Cache

64 KB (per SM)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

10.69 GPixel/s

Pixel Rate

1.400 GPixel/s

10.69 GTexel/s

Texture Rate

2.800 GTexel/s

-

427.5 GFLOPS

FP32 (float)

134.4 GFLOPS

85.50 GFLOPS

FP64 (double)

11.20 GFLOPS

Board Design

75W

TDP

50W

250 W

Suggested PSU

250 W

No outputs

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

RV670

GPU Name

GF108

RV670 PRO (215-0708003)

GPU Variant

GF108-200-A1

TeraScale

Architecture

Fermi

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

0.585 billion

192 mm²

Die Size

116 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.1

Shader Model

5.1

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