AMD Radeon HD 6990M vs ATI Mobility Radeon HD 4870 X2

VS

AMD Radeon HD 6990M

ATI Mobility Radeon HD 4870 X2

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 1024MB VRAM Mobility Radeon HD 4870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M 's Advantages

Released 2 years and 6 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (115.2GB/s vs 89.60GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6990M +82%

1.602 TFLOPS

Mobility Radeon HD 4870 X2

0.88 TFLOPS

Radeon HD 6990M

VS

Mobility Radeon HD 4870 X2

Graphics Card

Jul 2011

Release Date

Jan 2009

Vancouver

Generation

M9x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

89.60GB/s

Render Config

14

Compute Units

10

-

1120

Shading Units

800

56

TMUs

40

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

22.88 GPixel/s

Pixel Rate

8.800 GPixel/s

40.04 GTexel/s

Texture Rate

22.00 GTexel/s

-

1.602 TFLOPS

FP32 (float)

880.0 GFLOPS

-

FP64 (double)

176.0 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Blackcomb

GPU Name

M98

Blackcomb XTX (216-0811030)

GPU Variant

M98 XT L2 (216-0732023)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.956 billion

212 mm²

Die Size

256 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

Related GPU Comparisons

1

AMD Radeon HD 6990M vs AMD Radeon HD 7770M

2

AMD Radeon HD 6990M vs NVIDIA RTX A5000 Max-Q

3

AMD Radeon HD 6990M vs NVIDIA GeForce GTX 675MX Mac Edition

4

AMD Radeon HD 6990M vs AMD Radeon HD 6610M

5

AMD Radeon HD 6990M vs NVIDIA GeForce RTX 2080 SUPER Mobile

6

AMD Radeon HD 6990M vs AMD Radeon Pro W6600M

7

AMD Radeon HD 6990M vs AMD Radeon R9 M385X

8

AMD Radeon HD 6990M vs AMD Radeon RX 570 Mobile

9

AMD Radeon HD 6990M vs NVIDIA GeForce RTX 3050 Ti Max-Q

10

AMD Radeon HD 6990M vs AMD FirePro S7100X

Related News

1

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

2

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

3

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

4

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

5

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

6

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

7

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

8

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

9

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

10

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