Intel Iris Pro Graphics P580 vs ATI Mobility Radeon HD 4870

Comparative analysis of Intel Iris Pro Graphics P580 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: PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

Intel Iris Pro Graphics P580

ATI Mobility Radeon HD 4870

Differences

Reasons to consider the Intel Iris Pro Graphics P580

Videocard is newer: launch date 6 year(s) 7 month(s) later
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 14 nm vs 55 nm
128x more maximum memory size: 64 GB vs 512 MB
3.1x better performance in PassMark - G3D Mark: 2231 vs 720
Around 22% better performance in PassMark - G2D Mark: 509 vs 416

Specifications (specs)
Launch date	1 September 2015 vs 9 January 2009
Manufacturing process technology	14 nm vs 55 nm
Maximum memory size	64 GB vs 512 MB
Benchmarks
PassMark - G3D Mark	2231 vs 720
PassMark - G2D Mark	509 vs 416

Reasons to consider the ATI Mobility Radeon HD 4870

Around 83% higher core clock speed: 550 MHz vs 300 MHz
11.1x more pipelines: 800 vs 72
Around 6% better performance in GFXBench 4.0 - T-Rex (Frames): 3350 vs 3175
Around 6% better performance in GFXBench 4.0 - T-Rex (Fps): 3350 vs 3175

Specifications (specs)
Core clock speed	550 MHz vs 300 MHz
Pipelines	800 vs 72
Benchmarks
GFXBench 4.0 - T-Rex (Frames)	3350 vs 3175
GFXBench 4.0 - T-Rex (Fps)	3350 vs 3175

Compare benchmarks

GPU 1: Intel Iris Pro Graphics P580
GPU 2: ATI Mobility Radeon HD 4870

PassMark - G3D Mark

GPU 1

GPU 2

2231

720

PassMark - G2D Mark

GPU 1

GPU 2

509

416

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3175

3350

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3175

3350

Name	Intel Iris Pro Graphics P580	ATI Mobility Radeon HD 4870
PassMark - G3D Mark	2231	720
PassMark - G2D Mark	509	416
Geekbench - OpenCL	10003
GFXBench 4.0 - Manhattan (Frames)	1671
GFXBench 4.0 - Manhattan (Fps)	1671
GFXBench 4.0 - T-Rex (Frames)	3175	3350
GFXBench 4.0 - T-Rex (Fps)	3175	3350

Compare specifications (specs)

	Intel Iris Pro Graphics P580	ATI Mobility Radeon HD 4870
Essentials
Architecture	Generation 9.0	TeraScale
Code name	Skylake GT4e	M98
Launch date	1 September 2015	9 January 2009
Place in performance rating	665	591
Type	Laptop	Laptop
Technical info
Boost clock speed	1000 MHz
Core clock speed	300 MHz	550 MHz
Manufacturing process technology	14 nm	55 nm
Pipelines	72	800
Thermal Design Power (TDP)	15 Watt
Transistor count	189 million	956 million
Floating-point performance		880.0 gflops
Texture fill rate		22 GTexel / s
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x1	PCIe 2.0 x16
Laptop size		large
API support
DirectX	12.0 (12_1)	10.1
OpenGL	4.6	3.3
Memory
Maximum RAM amount	64 GB	512 MB
Memory type	DDR3L / LPDDR3 / DDR4	GDDR5
Shared memory	1	0
Memory bandwidth		56.8 GB / s
Memory bus width		256 Bit
Memory clock speed		1776 MHz
Technologies
Quick Sync
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