NVIDIA GeForce 945A vs ATI Mobility Radeon HD 4870

Comparative analysis of NVIDIA GeForce 945A and ATI Mobility Radeon HD 4870 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: 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), PassMark - G2D Mark, PassMark - G3D Mark, GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

NVIDIA GeForce 945A

ATI Mobility Radeon HD 4870

Differences

Reasons to consider the NVIDIA GeForce 945A

Videocard is newer: launch date 6 year(s) 2 month(s) later
Around 95% higher core clock speed: 1072 MHz vs 550 MHz
Around 28% higher texture fill rate: 28.22 GTexel / s vs 22 GTexel / s
Around 3% better floating-point performance: 903.2 gflops vs 880.0 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 55 nm
4x more maximum memory size: 2 GB vs 512 MB
Around 1% higher memory clock speed: 1800 MHz vs 1776 MHz
Around 72% better performance in PassMark - G2D Mark: 716 vs 416
2.6x better performance in PassMark - G3D Mark: 1852 vs 720

Specifications (specs)
Launch date	13 March 2015 vs 9 January 2009
Core clock speed	1072 MHz vs 550 MHz
Texture fill rate	28.22 GTexel / s vs 22 GTexel / s
Floating-point performance	903.2 gflops vs 880.0 gflops
Manufacturing process technology	28 nm vs 55 nm
Maximum memory size	2 GB vs 512 MB
Memory clock speed	1800 MHz vs 1776 MHz
Benchmarks
PassMark - G2D Mark	716 vs 416
PassMark - G3D Mark	1852 vs 720

Reasons to consider the ATI Mobility Radeon HD 4870

2.1x more pipelines: 800 vs 384

Pipelines	800 vs 384

Compare benchmarks

GPU 1: NVIDIA GeForce 945A
GPU 2: ATI Mobility Radeon HD 4870

PassMark - G2D Mark

GPU 1

GPU 2

716

416

PassMark - G3D Mark

GPU 1

GPU 2

1852

720

Name	NVIDIA GeForce 945A	ATI Mobility Radeon HD 4870
Geekbench - OpenCL	32359
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	28.865
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	381.898
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.991
CompuBench 1.5 Desktop - Video Composition (Frames/s)	30.793
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	107.63
PassMark - G2D Mark	716	416
PassMark - G3D Mark	1852	720
GFXBench 4.0 - T-Rex (Frames)		3350
GFXBench 4.0 - T-Rex (Fps)		3350

Compare specifications (specs)

	NVIDIA GeForce 945A	ATI Mobility Radeon HD 4870
Essentials
Architecture	Maxwell	TeraScale
Code name	GM108	M98
Launch date	13 March 2015	9 January 2009
Place in performance rating	597	594
Type	Desktop	Laptop
Technical info
Boost clock speed	1176 MHz
Core clock speed	1072 MHz	550 MHz
Floating-point performance	903.2 gflops	880.0 gflops
Manufacturing process technology	28 nm	55 nm
Pipelines	384	800
Texture fill rate	28.22 GTexel / s	22 GTexel / s
Thermal Design Power (TDP)	33 Watt
Transistor count		956 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x8	PCIe 2.0 x16
Laptop size		large
API support
DirectX	12.0 (11_0)	10.1
OpenGL	4.6	3.3
Memory
Maximum RAM amount	2 GB	512 MB
Memory bandwidth	14.4 GB / s	56.8 GB / s
Memory bus width	64 Bit	256 Bit
Memory clock speed	1800 MHz	1776 MHz
Memory type	DDR3	GDDR5
Shared memory		0
Technologies
1x Dual-Link/Single-Link DVI
1x Single-Link DVI Support (all display ports have to be supported by the laptop manufacturer)
DisplayPort support up to 2560x1600
HDMI support up to 1920x1080 (both with 7.1 AC3 Audio)
PCI-E 2.0 x16
Powerplay