ATI Mobility Radeon HD 4650 vs NVIDIA GeForce 820A

VS

ATI Mobility Radeon HD 4650

NVIDIA GeForce 820A

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4650 and 1024MB VRAM GeForce 820A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4650 's Advantages

Larger VRAM bandwidth (19.20GB/s vs 14.40GB/s)

224 additional rendering cores

NVIDIA GeForce 820A 's Advantages

Released 5 years and 2 months late

More VRAM (1024GB vs 512GB)

Lower TDP (15W vs 35W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4650 +7%

0.32 TFLOPS

GeForce 820A

0.298 TFLOPS

Mobility Radeon HD 4650

VS

GeForce 820A

Graphics Card

Jan 2009

Release Date

Mar 2014

M9x

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

600 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

DDR2

Memory Type

DDR3

128bit

Memory Bus

64bit

19.20GB/s

Bandwidth

14.40GB/s

Render Config

4

Compute Units

-

SM Count

2

320

Shading Units

96

32

TMUs

16

8

ROPs

8

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

4.000 GPixel/s

Pixel Rate

3.100 GPixel/s

16.00 GTexel/s

Texture Rate

12.40 GTexel/s

-

320.0 GFLOPS

FP32 (float)

297.6 GFLOPS

-

FP64 (double)

24.80 GFLOPS

Board Design

35W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M96

GPU Name

GF117

-

GPU Variant

N15V-GM

TeraScale

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

0.585 billion

146 mm²

Die Size

116 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.1

Shader Model

5.1

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