NVIDIA GeForce 820A vs ATI Mobility Radeon HD 4830

VS

NVIDIA GeForce 820A ATI Mobility Radeon HD 4830

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 820A and 1024MB VRAM Mobility Radeon HD 4830 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 820A 's Advantages

Released 5 years late

ATI Mobility Radeon HD 4830 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 14.40GB/s)

544 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 820A

0.298 TFLOPS

Mobility Radeon HD 4830 +114%

0.64 TFLOPS

GeForce 820A

VS

Mobility Radeon HD 4830

Graphics Card

Mar 2014

Release Date

Mar 2009

GeForce 800A

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

25.60GB/s

Render Config

2

SM Count

-

Compute Units

8

96

Shading Units

640

16

TMUs

32

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

128 KB

Theoretical Performance

3.100 GPixel/s

Pixel Rate

8.000 GPixel/s

12.40 GTexel/s

Texture Rate

16.00 GTexel/s

-

FP16 (half)

-

297.6 GFLOPS

FP32 (float)

640.0 GFLOPS

24.80 GFLOPS

FP64 (double)

128.0 GFLOPS

Graphics Processor

GF117

GPU Name

M97

N15V-GM

GPU Variant

M97 M2 (216-0731004)

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.585 billion

Transistors

0.826 billion

116 mm²

Die Size

137 mm²

Board Design

15W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.1

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