AMD Radeon HD 7870M vs ATI Mobility Radeon HD 3650

VS

AMD Radeon HD 7870M ATI Mobility Radeon HD 3650

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7870M and 512MB VRAM Mobility Radeon HD 3650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870M 's Advantages

Released 4 years and 3 months late

Larger VRAM bandwidth (64.00GB/s vs 22.40GB/s)

520 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7870M +753%

1.024 TFLOPS

Mobility Radeon HD 3650

0.12 TFLOPS

Radeon HD 7870M

VS

Mobility Radeon HD 3650

Graphics Card

Apr 2012

Release Date

Jan 2008

London

Generation

M8x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-II

Clock Speeds

-

Base Clock

-

Boost Clock

-

1000 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

22.40GB/s

Render Config

-

SM Count

-

10

Compute Units

3

640

Shading Units

120

40

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

128 KB

Theoretical Performance

12.80 GPixel/s

Pixel Rate

2.000 GPixel/s

32.00 GTexel/s

Texture Rate

4.000 GTexel/s

-

FP16 (half)

-

1024 GFLOPS

FP32 (float)

120.0 GFLOPS

64.00 GFLOPS

FP64 (double)

-

Graphics Processor

Heathrow

GPU Name

M86

Heathrow XT (216-0835033)

GPU Variant

M86-ME (216-0683013)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.378 billion

123 mm²

Die Size

135 mm²

Board Design

45W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

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