AMD Radeon HD 8770M vs AMD Radeon HD 8790M

Comparative analysis of AMD Radeon HD 8770M and AMD Radeon HD 8790M 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, Geekbench - OpenCL, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Graphics Score.

AMD Radeon HD 8770M

AMD Radeon HD 8790M

Differences

Reasons to consider the AMD Radeon HD 8770M

Around 13% higher memory clock speed: 4500 MHz vs 4000 MHz

Memory clock speed	4500 MHz vs 4000 MHz

Reasons to consider the AMD Radeon HD 8790M

Around 10% higher core clock speed: 850 MHz vs 775 MHz
Around 10% higher boost clock speed: 850 MHz vs 775 MHz
Around 9% higher texture fill rate: 21.6 GTexel / s vs 19.8 GTexel / s
Around 9% better floating-point performance: 691.2 gflops vs 633.6 gflops

Core clock speed	850 MHz vs 775 MHz
Boost clock speed	850 MHz vs 775 MHz
Texture fill rate	21.6 GTexel / s vs 19.8 GTexel / s
Floating-point performance	691.2 gflops vs 633.6 gflops

Compare benchmarks

GPU 1: AMD Radeon HD 8770M
GPU 2: AMD Radeon HD 8790M

Name	AMD Radeon HD 8770M	AMD Radeon HD 8790M
PassMark - G3D Mark		1306
PassMark - G2D Mark		751
Geekbench - OpenCL		4679
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		12.759
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		465.631
CompuBench 1.5 Desktop - T-Rex (Frames/s)		1.576
CompuBench 1.5 Desktop - Video Composition (Frames/s)		28.839
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		80.418
GFXBench 4.0 - Car Chase Offscreen (Frames)		2181
GFXBench 4.0 - Manhattan (Frames)		2656
GFXBench 4.0 - T-Rex (Frames)		2014
GFXBench 4.0 - Car Chase Offscreen (Fps)		2181
GFXBench 4.0 - Manhattan (Fps)		2656
GFXBench 4.0 - T-Rex (Fps)		2014
3DMark Fire Strike - Graphics Score		1607

Compare specifications (specs)

	AMD Radeon HD 8770M	AMD Radeon HD 8790M
Essentials
Architecture	GCN 1.0	GCN 1.0
Code name	Mars	Mars
Design	AMD Radeon HD 8000M Series	AMD Radeon HD 8000M Series
Launch date	1 April 2013	1 April 2013
Place in performance rating	not rated	861
Type	Desktop	Desktop
Technical info
Boost clock speed	775 MHz	850 MHz
Compute units	6	6
Core clock speed	775 MHz	850 MHz
Floating-point performance	633.6 gflops	691.2 gflops
Manufacturing process technology	28 nm	28 nm
Pipelines	384	384
Texture fill rate	19.8 GTexel / s	21.6 GTexel / s
Transistor count	1,040 million	1,040 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x8	MXM-A (3.0)
Laptop size	medium sized	medium sized
Supplementary power connectors		None
API support
DirectX	11	11
OpenGL	4.4	4.4
Memory
Maximum RAM amount	2 GB	2 GB
Memory bandwidth	72 GB / s	64 GB / s
Memory bus width	128 Bit	128 Bit
Memory clock speed	4500 MHz	4000 MHz
Memory type	GDDR5	GDDR5
Shared memory	0	0