ATI Mobility Radeon HD 3870 vs AMD Radeon HD 6490M

VS

ATI Mobility Radeon HD 3870

AMD Radeon HD 6490M

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 and 512MB VRAM Radeon HD 6490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3870 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 25.60GB/s)

160 additional rendering cores

AMD Radeon HD 6490M 's Advantages

Released 2 years and 7 months late

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3870 +64%

0.422 TFLOPS

Radeon HD 6490M

0.256 TFLOPS

Mobility Radeon HD 3870

VS

Radeon HD 6490M

Graphics Card

Jun 2008

Release Date

Jan 2011

M8x

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

850 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

64bit

54.40GB/s

Bandwidth

25.60GB/s

Render Config

4

Compute Units

2

-

320

Shading Units

160

16

TMUs

8

16

ROPs

4

-

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

10.56 GPixel/s

Pixel Rate

3.200 GPixel/s

10.56 GTexel/s

Texture Rate

6.400 GTexel/s

-

422.4 GFLOPS

FP32 (float)

256.0 GFLOPS

84.48 GFLOPS

FP64 (double)

-

Board Design

55W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

M88

GPU Name

Seymour

-

GPU Variant

Seymour XTX S3 (216-0809024)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

0.37 billion

192 mm²

Die Size

67 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

Related GPU Comparisons

1

ATI Mobility Radeon HD 3870 vs NVIDIA GeForce RTX 3070 Max Q

2

ATI Mobility Radeon HD 3870 vs AMD Radeon R9 M390 Mac Edition

3

ATI Mobility Radeon HD 3870 vs NVIDIA GeForce GT 720M

4

ATI Mobility Radeon HD 3870 vs AMD Radeon HD 7530M

5

ATI Mobility Radeon HD 3870 vs AMD Radeon RX 6500M

6

ATI Mobility Radeon HD 3870 vs Intel Arc A770M

7

ATI Mobility Radeon HD 3870 vs NVIDIA GeForce GTS 160M

8

ATI Mobility Radeon HD 3870 vs NVIDIA GeForce RTX 4070 Max-Q

9

ATI Mobility Radeon HD 3870 vs NVIDIA NVS 5400M

10

ATI Mobility Radeon HD 3870 vs NVIDIA GeForce 840M

Related News

1

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

2

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

3

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

4

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

5

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

6

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

7

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU

8

Cyberpunk 2077 Update 2.2: Intel Arrow Lake Gaming Performance Soars by 33%!

9

Intel Finally Achieves Frame Generation! 'F1 24' Becomes the First XeSS 2 Game

10

World's First! Intel Arc B580 Graphics Card Arrives Early