ATI Mobility Radeon X800XT vs Iris Pro Graphics P580

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking611not rated
Place by popularitynot in top-100not in top-100
Power efficiency25.16no data
ArchitectureGeneration 9.0 (2015−2016)no data
GPU code nameSkylake GT4eM28Pro
Market segmentDesktopLaptop
Release date1 September 2015 (9 years ago)8 June 2005 (19 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores57622
Core clock speed350 MHz6 MHz
Boost clock speed1050 MHz480 MHz
Number of transistors189 millionno data
Manufacturing process technology14 nm+130 nm
Power consumption (TDP)15 Wattno data
Texture fill rate75.60no data
Floating-point processing power1.21 TFLOPSno data
ROPs9no data
TMUs72no data

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizeno datalarge
InterfaceRing Busno data
WidthIGPno data

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeDDR3L/LPDDR3/DDR4256
Maximum RAM amount64 GBno data
Memory bus widthSystem Shared256 Bit
Memory clock speedSystem Shared550 MHz
Shared memory+-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsPortable Device Dependentno data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

Quick Sync+no data

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (12_1)no data
Shader Model6.4no data
OpenGL4.6no data
OpenCL3.0no data
Vulkan1.3-

Pros & cons summary


Recency 1 September 2015 8 June 2005
Chip lithography 14 nm 130 nm

Iris Pro Graphics P580 has an age advantage of 10 years, and a 828.6% more advanced lithography process.

We couldn't decide between Iris Pro Graphics P580 and Mobility Radeon X800XT. We've got no test results to judge.

Be aware that Iris Pro Graphics P580 is a desktop card while Mobility Radeon X800XT is a notebook one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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Intel Iris Pro Graphics P580
Iris Pro Graphics P580
ATI Mobility Radeon X800XT
Mobility Radeon X800XT

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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Questions & comments

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