ATI Mobility Radeon HD 4650 vs AMD Radeon HD 7770M

VS

ATI Mobility Radeon HD 4650

AMD Radeon HD 7770M

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4650 and 1024MB VRAM Radeon HD 7770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7770M 's Advantages

Released 3 years and 3 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 19.20GB/s)

192 additional rendering cores

Lower TDP (32W vs 35W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4650

0.32 TFLOPS

Radeon HD 7770M +115%

0.691 TFLOPS

Mobility Radeon HD 4650

VS

Radeon HD 7770M

Graphics Card

Jan 2009

Release Date

Apr 2012

M9x

Generation

London

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

600 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

128bit

19.20GB/s

Bandwidth

64.00GB/s

Render Config

4

Compute Units

8

-

320

Shading Units

512

32

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

4.000 GPixel/s

Pixel Rate

10.80 GPixel/s

16.00 GTexel/s

Texture Rate

21.60 GTexel/s

-

320.0 GFLOPS

FP32 (float)

691.2 GFLOPS

-

FP64 (double)

43.20 GFLOPS

Board Design

35W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M96

GPU Name

Chelsea

-

GPU Variant

Chelsea XT

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

1.5 billion

146 mm²

Die Size

123 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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