NVIDIA GeForce GTX 950M vs Intel Iris Pro Graphics P580

NVIDIA GeForce GTX 950M
Intel Iris Pro Graphics P580

General info

Comparison of GeForce GTX 950M and Iris Pro Graphics P580 architecture, market type and release date.
Place in performance rating
 
Architecture
Maxwell
 
Intel Gen. 9 (Skylake)
Code name
N16P-GT
 
Skylake GT4e
Type
Laptop
 
Laptop
Release date
12 March 2015
 
1 September 2015

Technical specs

GeForce GTX 950M and Iris Pro Graphics P580's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of GeForce GTX 950M and Iris Pro Graphics P580's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Pipelines
640
 
72
CUDA cores
640
 
n/d
Core clock speed
914 MHz
 
350 MHz
Boost Clock
1124 MHz
 
1100 MHz
Transistor count
1,870 million
 
189 million
Manufacturing process technology
28 nm
 
14 nm
Power consumption (TDP)
75 Watt
 
15 Watt
Texture fill rate
44.96 GTexel / s
 
n/d
Floating-point performance
1,439 gflops
 
n/d

Compatibility, dimensions and requirements

Information on GeForce GTX 950M and Iris Pro Graphics P580 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
Laptop size
medium sized
 
n/d
Bus support
PCI Express 3.0
 
n/d
Interface
PCIe 3.0 x8
 
PCIe 3.0 x1

Memory

Parameters of memory installed on GeForce GTX 950M and Iris Pro Graphics P580: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Memory type
DDR3 or GDDR5
 
DDR3L / LPDDR3 / DDR4
Maximum RAM amount
4 GB
 
64 GB
Memory bus width
128 Bit
 
n/d
Memory clock speed
1000 or 2500 MHz
 
n/d
Memory bandwidth
32 or 80 GB / s
 
n/d
Shared memory
-
 
+

Video outputs and ports

Types and number of video connectors present on GeForce GTX 950M and Iris Pro Graphics P580.
Display Connectors
No outputs
 
No outputs
VGA аnalog display support
+
 
n/d
DisplayPort Multimode (DP++) support
+
 
n/d
HDMI
+
 
-

Technologies

Technological solutions and APIs supported by GeForce GTX 950M and Iris Pro Graphics P580. You'll probably need this information if you need some particular technology for your purposes.
GameStream
+
 
-
GeForce ShadowPlay
+
 
-
GPU Boost
+
 
n/d
GameWorks
+
 
-
H.264, VC1, MPEG2 1080p video decoder
+
 
-
Optimus
+
 
-
BatteryBoost
+
 
-
CUDA
+
 
-
SLI
+
 
n/d
GeForce Experience
+
 
n/d
Quick Sync
n/d
 
+
Adaptive VSync
+
 
n/d
Ansel
+
 
n/d
DSR
+
 
n/d

API support

APIs supported by GeForce GTX 950M and Iris Pro Graphics P580, sometimes including their particular versions.
DirectX
DirectX 12 (FL 11_0), Shader 5.0
 
DirectX 12 (FL 12_1)
OpenGL
4.5
 
4.6

Benchmark performance

Non-gaming benchmarks performance of GeForce GTX 950M and Iris Pro Graphics P580. Note that overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance

GTX 950M 3.25
Iris Pro Graphics P580 3.39 +4.3%

Passmark

GTX 950M 1938
Iris Pro Graphics P580 2020 +4.2%

Mining hashrates

Cryptocurrency mining performance of GeForce GTX 950M and Iris Pro Graphics P580. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
140 Mh/s
 
n/d
Ethereum / ETH (DaggerHashimoto)
2.5 Mh/s
 
n/d

Gaming performance

Let's see how good GeForce GTX 950M and Iris Pro Graphics P580 are for gaming. Particular gaming benchmark results are measured in FPS.

Advantages of NVIDIA GeForce GTX 950M

More pipelines (640 vs 72)
Battery Boost (saves energy while gaming by lowering FPS to a still acceptable level. Can make a laptop working on battery twice as long, depending on the particular game)
NVIDIA GameStream
ShadowPlay (allows recording and streaming video during gaming on NVIDIA GPUs)
GPU Boost 2.0 (increases NVIDIA GPU voltage and frequency when there's a temperature headroom. Similar to AMD PowerTune)
Optimus (lowers energy usage by automatically switching between integrated and discrete NVIDIA GPU. Similar to AMD Enduro)
PhysX (hardware acceleration of physical simulation engine named PhysX)
CUDA (Compute Unified Device Architecture - an API for video card computing power usage in tasks different from 3D graphics processing. Can be used for physics simulation for instance)
SLI (Scalable Link Interface - a technology for uniting several NVIDIA GPUs processing power in one PC)
GeForce Experience (software suite built to manage NVIDIA GPU parameters, and to record and stream game video)
GameWorks
Adaptive VSync
DSR
Ansel
HDMI
NVIDIAGameStreamReady
H264VC1MPEG21080pVideoDecoder
Optimus Support
NVIDIA BatteryBoost

Advantages of Intel Iris Pro Graphics P580

4.3% faster in synthetic tests
Somewhat newer (1 September 2015 vs 12 March 2015)
Finer manufacturing process technology (14 vs 28 nm)
Less power hungry (15 vs 75 watts)
Quick Sync (hardware acceleration of video encoding and decoding for Intel CPUs. Speeds up video encoding by times, but at the cost of somewhat lower quality)

So, GTX 950M or Iris Pro Graphics P580?

Technical City couldn't decide between NVIDIA GeForce GTX 950M and Intel Iris Pro Graphics P580. The differences in performance seem too small.
Should you still have questions on choice between GeForce GTX 950M and Iris Pro Graphics P580, ask them in Comments section, and we shall answer.

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NVIDIA GeForce GTX 950M
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