AMD Radeon HD 6990M Rebrand vs AMD Radeon HD 6870 X2

Comparative analysis of AMD Radeon HD 6990M Rebrand and AMD Radeon HD 6870 X2 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: CompuBench 1.5 Desktop - T-Rex (Frames/s).

AMD Radeon HD 6990M Rebrand

AMD Radeon HD 6870 X2

Differences

Reasons to consider the AMD Radeon HD 6990M Rebrand

3x lower typical power consumption: 100 Watt vs 300 Watt
Around 5% higher memory clock speed: 4400 MHz vs 4200 MHz

Thermal Design Power (TDP)	100 Watt vs 300 Watt
Memory clock speed	4400 MHz vs 4200 MHz

Reasons to consider the AMD Radeon HD 6870 X2

Around 13% higher core clock speed: 900 MHz vs 800 MHz
7.8x more texture fill rate: 2x 50.4 GTexel / s billion / sec vs 32.0 GTexel / s
2.8x more pipelines: 2x 1120 vs 800
3.2x better floating-point performance: 2x 2,016.0 gflops vs 1,280.0 gflops
2x more maximum memory size: 2x 1 GB vs 1 GB

Core clock speed	900 MHz vs 800 MHz
Texture fill rate	2x 50.4 GTexel / s billion / sec vs 32.0 GTexel / s
Pipelines	2x 1120 vs 800
Floating-point performance	2x 2,016.0 gflops vs 1,280.0 gflops
Maximum memory size	2x 1 GB vs 1 GB

Compare benchmarks

GPU 1: AMD Radeon HD 6990M Rebrand
GPU 2: AMD Radeon HD 6870 X2

Name	AMD Radeon HD 6990M Rebrand	AMD Radeon HD 6870 X2
CompuBench 1.5 Desktop - T-Rex (Frames/s)		1.807

Compare specifications (specs)

	AMD Radeon HD 6990M Rebrand	AMD Radeon HD 6870 X2
Essentials
Architecture	TeraScale 2	TeraScale 2
Code name	Broadway	Barts
Launch date	12 July 2011	8 July 2011
Place in performance rating	not rated	1608
Type	Desktop	Desktop
Launch price (MSRP)		$520
Technical info
Core clock speed	800 MHz	900 MHz
Floating-point performance	1,280.0 gflops	2x 2,016.0 gflops
Manufacturing process technology	40 nm	40 nm
Pipelines	800	2x 1120
Texture fill rate	32.0 GTexel / s	2x 50.4 GTexel / s billion / sec
Thermal Design Power (TDP)	100 Watt	300 Watt
Transistor count	1,040 million	1,700 million
Video outputs and ports
Display Connectors	No outputs	2x DVI, 1x HDMI, 2x mini-DisplayPort
Compatibility, dimensions and requirements
Interface	MXM-B (3.0)	PCIe 2.0 x16
Length		304 mm
API support
DirectX	11.2 (11_0)	11.2 (11_0)
OpenGL	4.4	4.4
Memory
Maximum RAM amount	1 GB	2x 1 GB
Memory bandwidth	70.4 GB / s	2x 134.4 GB / s
Memory bus width	128 Bit	2x 256 Bit
Memory clock speed	4400 MHz	4200 MHz
Memory type	GDDR5	GDDR5