AMD Radeon HD 7770M vs AMD Radeon HD 7870M

Comparative analysis of AMD Radeon HD 7770M and AMD Radeon HD 7870M 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: PassMark - G3D Mark, PassMark - G2D Mark, GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

AMD Radeon HD 7770M

AMD Radeon HD 7870M

Differences

Reasons to consider the AMD Radeon HD 7770M

Around 41% lower typical power consumption: 32 Watt vs 45 Watt

Thermal Design Power (TDP)	32 Watt vs 45 Watt

Reasons to consider the AMD Radeon HD 7870M

Around 19% higher core clock speed: 800 MHz vs 675 MHz
Around 48% higher texture fill rate: 32 GTexel / s vs 21.6 GTexel / s
Around 25% higher pipelines: 640 vs 512
Around 48% better floating-point performance: 1,024 gflops vs 691.2 gflops
2x more maximum memory size: 2 GB vs 1 GB

Core clock speed	800 MHz vs 675 MHz
Texture fill rate	32 GTexel / s vs 21.6 GTexel / s
Pipelines	640 vs 512
Floating-point performance	1,024 gflops vs 691.2 gflops
Maximum memory size	2 GB vs 1 GB

Compare benchmarks

GPU 1: AMD Radeon HD 7770M
GPU 2: AMD Radeon HD 7870M

Name	AMD Radeon HD 7770M	AMD Radeon HD 7870M
PassMark - G3D Mark		1507
PassMark - G2D Mark		556
GFXBench 4.0 - Manhattan (Frames)		1367
GFXBench 4.0 - Manhattan (Fps)		1367
GFXBench 4.0 - T-Rex (Frames)		3359
GFXBench 4.0 - T-Rex (Fps)		3359

Compare specifications (specs)

	AMD Radeon HD 7770M	AMD Radeon HD 7870M
Essentials
Architecture	GCN 1.0	GCN 1.0
Code name	Chelsea	Heathrow
Launch date	24 April 2012	24 April 2012
Place in performance rating	not rated	578
Type	Laptop	Laptop
Technical info
Core clock speed	675 MHz	800 MHz
Floating-point performance	691.2 gflops	1,024 gflops
Manufacturing process technology	28 nm	28 nm
Pipelines	512	640
Texture fill rate	21.6 GTexel / s	32 GTexel / s
Thermal Design Power (TDP)	32 Watt	45 Watt
Transistor count	1,500 million	1,500 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 3.0 x16
Laptop size	medium sized	large
API support
DirectX	12.0 (11_1)	12.0 (11_1)
OpenGL	4.5	4.5
Memory
Maximum RAM amount	1 GB	2 GB
Memory bandwidth	64 GB / s	64 GB / s
Memory bus width	128 Bit	128 Bit
Memory clock speed	4000 MHz	4000 MHz
Memory type	GDDR5	GDDR5
Shared memory	0	0