ION 2 vs Radeon R5 M255

Primary details

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

Place in performance ranking	964	not rated
Place by popularity	not in top-100	not in top-100
Architecture	GCN (2011−2017)	GT2xx (2009−2012)
GPU code name	Topaz Pro / Sun	GT218-ION-A3, GT218-ILV-A3
Market segment	Laptop	Laptop
Release date	1 May 2014 (10 years ago)	10 January 2010 (14 years ago)
Current price	no data	$622

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	320	16
Compute units	5	no data
Core clock speed	940 MHz	405 / 475 / 535 MHz
Boost clock speed	940 MHz	no data
Number of transistors	1,550 million	260 million
Manufacturing process technology	28 nm	40 nm
Power consumption (TDP)	no data	6/12 Watt
Texture fill rate	22.56	4.000
Floating-point performance	721.9 gflops	no data

Form factor & compatibility

Information on Radeon R5 M255 and ION 2 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.

Bus support	PCIe 3.0 x8	no data
Interface	PCIe 3.0 x8	PCIe 2.0 x16

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 type	DDR3	DDR2, DDR3
Maximum RAM amount	4 GB	512 MB
Memory bus width	64 Bit	64 Bit
Memory clock speed	1000 MHz	790 MHz
Memory bandwidth	16 GB/s	no data
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 Connectors	No outputs	No outputs
Eyefinity	+	no data

Supported technologies

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

AppAcceleration	+	no data
Enduro	-	no data
HD3D	+	no data
PowerTune	+	no data
DualGraphics	1	no data
TrueAudio	-	no data
ZeroCore	+	no data
Switchable graphics	1	no data

API compatibility

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

DirectX	DirectX® 11	11.1 (10_1)
Shader Model	6.3	4.1
OpenGL	4.4	3.3
OpenCL	Not Listed	1.1
Vulkan	no data	N/A
Mantle	+	no data
CUDA	no data	1.2

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.

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Pros & cons summary

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Recency	1 May 2014	10 January 2010
Maximum RAM amount	4 GB	512 MB
Chip lithography	28 nm	40 nm

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