Intel Iris Plus Graphics 640 vs ATI Radeon HD 3870 X2

Comparative analysis of Intel Iris Plus Graphics 640 and ATI Radeon HD 3870 X2 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, 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.

Intel Iris Plus Graphics 640

ATI Radeon HD 3870 X2

Differences

Reasons to consider the Intel Iris Plus Graphics 640

Videocard is newer: launch date 8 year(s) 11 month(s) later
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 14 nm vs 55 nm
11x lower typical power consumption: 15 Watt vs 165 Watt
32x more maximum memory size: 32 GB vs 2x 512 MB
Around 90% better performance in PassMark - G3D Mark: 1347 vs 709
Around 52% better performance in PassMark - G2D Mark: 340 vs 224

Specifications (specs)
Launch date	3 January 2017 vs 26 January 2008
Manufacturing process technology	14 nm vs 55 nm
Thermal Design Power (TDP)	15 Watt vs 165 Watt
Maximum memory size	32 GB vs 2x 512 MB
Benchmarks
PassMark - G3D Mark	1347 vs 709
PassMark - G2D Mark	340 vs 224

Reasons to consider the ATI Radeon HD 3870 X2

2.8x more core clock speed: 825 MHz vs 300 MHz
13.3x more pipelines: 2x 320 vs 48

Specifications (specs)
Core clock speed	825 MHz vs 300 MHz
Pipelines	2x 320 vs 48
Benchmarks
GFXBench 4.0 - T-Rex (Frames)	3336 vs 3333
GFXBench 4.0 - T-Rex (Fps)	3336 vs 3333

Compare benchmarks

GPU 1: Intel Iris Plus Graphics 640
GPU 2: ATI Radeon HD 3870 X2

PassMark - G3D Mark

GPU 1

GPU 2

1347

709

PassMark - G2D Mark

GPU 1

GPU 2

340

224

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3333

3336

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3333

3336

Name	Intel Iris Plus Graphics 640	ATI Radeon HD 3870 X2
PassMark - G3D Mark	1347	709
PassMark - G2D Mark	340	224
Geekbench - OpenCL	6440
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	36.485
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	246.614
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.888
CompuBench 1.5 Desktop - Video Composition (Frames/s)	21.014
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	42.981
GFXBench 4.0 - Car Chase Offscreen (Frames)	2306
GFXBench 4.0 - Manhattan (Frames)	1514
GFXBench 4.0 - T-Rex (Frames)	3333	3336
GFXBench 4.0 - Car Chase Offscreen (Fps)	2306
GFXBench 4.0 - Manhattan (Fps)	1514
GFXBench 4.0 - T-Rex (Fps)	3333	3336
3DMark Fire Strike - Graphics Score	720

Compare specifications (specs)

	Intel Iris Plus Graphics 640	ATI Radeon HD 3870 X2
Essentials
Architecture	Generation 9.5	TeraScale
Code name	Kaby Lake GT3e	R680
Launch date	3 January 2017	26 January 2008
Place in performance rating	1159	934
Type	Laptop	Desktop
Launch price (MSRP)		$449
Technical info
Boost clock speed	1100 MHz
Core clock speed	300 MHz	825 MHz
Manufacturing process technology	14 nm	55 nm
Pipelines	48	2x 320
Thermal Design Power (TDP)	15 Watt	165 Watt
Transistor count	189 million	666 million
Floating-point performance		2x 528.0 gflops
Texture fill rate		2x 13.2 GTexel / s billion / sec
Video outputs and ports
Display Connectors	No outputs	2x DVI, 1x S-Video
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x1	PCIe 2.0 x16
Length		267 mm
Supplementary power connectors		1x 6-pin + 1x 8-pin
API support
DirectX	12.0 (12_1)	10.1
OpenGL	4.5	3.3
Memory
Maximum RAM amount	32 GB	2x 512 MB
Memory bus width	64 / 128 Bit	2x 256 Bit
Memory type	DDR3L / LPDDR3 / DDR4	GDDR3
Shared memory	1
Memory bandwidth		2x 57.7 GB / s
Memory clock speed		1802 MHz
Technologies
Quick Sync