GeForce GTX 275 vs Iris Pro Graphics P580

When comparing GeForce GTX 275 and Iris Pro Graphics P580, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GTX 275 and Iris Pro Graphics P580 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Iris Pro Graphics P580 is a Laptop Graphics Card

Note: Iris Pro Graphics P580 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Iris Pro Graphics P580 here:

Main Specs

  GeForce GTX 275 Iris Pro Graphics P580
Power consumption (TDP) 219 Watt 15 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x1
Supplementary power connectors 2x 6-pin
Memory type GDDR3 DDR3L/LPDDR3/DDR4
Maximum RAM amount 896 MB 64 GB
Display Connectors 2x DVI No outputs
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  • GeForce GTX 275 has 1360% more power consumption, than Iris Pro Graphics P580.
  • GeForce GTX 275 is connected by PCIe 2.0 x16, and Iris Pro Graphics P580 uses PCIe 3.0 x1 interface.
  • GeForce GTX 275 has 832 GB more memory, than Iris Pro Graphics P580.
  • GeForce GTX 275 is used in Desktops, and Iris Pro Graphics P580 - in Laptops.
  • GeForce GTX 275 is build with Tesla 2.0 architecture, and Iris Pro Graphics P580 - with Gen. 9 Skylake.
  • Core clock speed of GeForce GTX 275 is 1054 MHz higher, than Iris Pro Graphics P580.
  • GeForce GTX 275 is manufactured by 55 nm process technology, and Iris Pro Graphics P580 - by 14 nm process technology.

Game benchmarks

high / 1080p 6−7 10−11
ultra / 1080p 4−5 6−7
QHD / 1440p 0−1 0−1
low / 720p 16−18 21−24
medium / 1080p 8−9 12−14
The average gaming FPS of Iris Pro Graphics P580 in Assassin's Creed Odyssey is 44% more, than GeForce GTX 275.

Full Specs

  GeForce GTX 275 Iris Pro Graphics P580
Architecture Tesla 2.0 Gen. 9 Skylake
Code name GT200B Skylake GT4e
Type Desktop Laptop
Release date 15 January 2009 1 September 2015
Pipelines 240 72
Core clock speed 1404 MHz 350 MHz
Boost Clock 1100 MHz
Transistor count 1,400 million 189 million
Manufacturing process technology 55 nm 14 nm
Texture fill rate 50.6 billion/sec 75.60
Floating-point performance 673.9 gflops
Length 10.5" (267 mm) (26.7 cm)
Memory bus width 448 Bit
Memory clock speed 1134 MHz
Memory bandwidth 127.0 GB/s
Shared memory +
DirectX 11.1 (10_0) 12 (12_1)
Shader Model 4.0 6.4
OpenGL 3.0 4.6
OpenCL 1.1 2.1
Vulkan N/A 1.1.97
CUDA +
CUDA cores 240
Bus support PCI-E 2.0
Height 4.376" (111 mm) (11.1 cm)
SLI options +
Multi monitor support +
Maximum VGA resolution 2048x1536
Audio input for HDMI S/PDIF
Quick Sync +
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