Iris Plus Graphics 655 vs Radeon R9 270X

Place in performance ranking	367	646
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.60	0.90
Architecture	GCN (2011−2017)	Gen. 9.5 Kaby Lake (2015−2017)
GPU code name	Curacao XT	Kaby Lake GT3e
Market segment	Desktop	Laptop
Design	reference	no data
Release date	8 October 2013 (10 years ago)	1 September 2017 (6 years ago)
Launch price (MSRP)	$199	no data
Current price	$136 (0.7x MSRP)	$999

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

R9 270X has 411% better value for money than Iris Plus Graphics 655.

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	1280	48
Core clock speed	no data	300 MHz
Boost clock speed	1050 MHz	1200 MHz
Number of transistors	2,800 million	189 million
Manufacturing process technology	28 nm	14 nm
Power consumption (TDP)	180 Watt	15 Watt
Texture fill rate	84.00	50.40
Floating-point performance	2,688 gflops	no data

Form factor & compatibility

Information on Radeon R9 270X and Iris Plus Graphics 655 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). 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	no data
Interface	PCIe 3.0 x16	PCIe 3.0 x1
Width	2-slot	no data
Supplementary power connectors	2 x 6-pin	no 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 type	GDDR5	DDR3/DDR4
Maximum RAM amount	4 GB	System Shared
Memory bus width	256 Bit	System Shared
Memory clock speed	no data	System Shared
Memory bandwidth	179.2 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	2x DVI, 1x HDMI, 1x DisplayPort	No outputs
Eyefinity	+	no data
HDMI	+	no data
DisplayPort support	+	no data

Supported technologies

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

AppAcceleration	+	no data
CrossFire	1	no data
Enduro	-	no data
FreeSync	1	no data
HD3D	+	no data
LiquidVR	1	no data
PowerTune	-	no data
TressFX	1	no data
TrueAudio	+	no data
ZeroCore	-	no data
UVD	+	no data
DDMA audio	+	no data
Quick Sync	no data	+

API compatibility

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

DirectX	DirectX® 12	12 (12_1)
Shader Model	5.1	6.4
OpenGL	4.6	4.6
OpenCL	1.2	2.1
Vulkan	+	1.1.103
Mantle	-	no data

Synthetic benchmark performance

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

Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

R9 270X 12.66
+201%

Iris Plus Graphics 655 4.21

Radeon R9 270X outperforms Iris Plus Graphics 655 by 201% based on our aggregate benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

R9 270X 4889
+182%

Iris Plus Graphics 655 1736

Radeon R9 270X outperforms Iris Plus Graphics 655 by 182% in Passmark.

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

Benchmark coverage: 14%

R9 270X 6560
+231%

Iris Plus Graphics 655 1983

Radeon R9 270X outperforms Iris Plus Graphics 655 by 231% in 3DMark Fire Strike Graphics.

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD	65−70 +183%	23 −183%
1440p	45−50 +200%	15 −200%
4K	45−50 +200%	15 −200%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

20−22

no data

Full HD
Medium Preset

Assassin's Creed Odyssey	24−27	no data
Assassin's Creed Valhalla	20−22	no data
Battlefield 5	40−45	no data
Call of Duty: Modern Warfare	24−27	no data
Cyberpunk 2077	20−22	no data
Far Cry 5	30−33	no data
Far Cry New Dawn	35−40	no data
Forza Horizon 4	60−65	no data
Hitman 3	24−27	no data
Horizon Zero Dawn	50−55	no data
Metro Exodus	40−45	no data
Red Dead Redemption 2	35−40	no data
Shadow of the Tomb Raider	35−40	no data
Watch Dogs: Legion	40−45	no data

Full HD
High Preset

Assassin's Creed Odyssey	24−27	no data
Assassin's Creed Valhalla	20−22	no data
Battlefield 5	40−45	no data
Call of Duty: Modern Warfare	24−27	no data
Cyberpunk 2077	20−22	no data
Far Cry 5	30−33	no data
Far Cry New Dawn	35−40	no data
Forza Horizon 4	60−65	no data
Hitman 3	24−27	no data
Horizon Zero Dawn	50−55	no data
Metro Exodus	40−45	no data
Red Dead Redemption 2	35−40	no data
Shadow of the Tomb Raider	35−40	no data
The Witcher 3: Wild Hunt	24−27	no data
Watch Dogs: Legion	40−45	no data

Full HD
Ultra Preset

Assassin's Creed Odyssey	24−27	no data
Assassin's Creed Valhalla	20−22	no data
Call of Duty: Modern Warfare	24−27	no data
Cyberpunk 2077	20−22	no data
Far Cry 5	30−33	no data
Forza Horizon 4	60−65	no data
Horizon Zero Dawn	50−55	no data
Shadow of the Tomb Raider	35−40	no data
The Witcher 3: Wild Hunt	24−27	no data
Watch Dogs: Legion	40−45	no data

Full HD
Epic Preset

Red Dead Redemption 2

35−40

no data

1440p
High Preset

Battlefield 5	24−27	no data
Far Cry New Dawn	21−24	no data

1440p
Ultra Preset

Assassin's Creed Odyssey	12−14	no data
Assassin's Creed Valhalla	9−10 +350%	2−3 −350%
Call of Duty: Modern Warfare	14−16	no data
Cyberpunk 2077	6−7	no data
Far Cry 5	20−22	no data
Forza Horizon 4	24−27	no data
Hitman 3	16−18	no data
Horizon Zero Dawn	24−27	no data
Metro Exodus	21−24	no data
Shadow of the Tomb Raider	21−24 +250%	6−7 −250%
The Witcher 3: Wild Hunt	12−14	no data
Watch Dogs: Legion	7−8	no data

1440p
Epic Preset

Red Dead Redemption 2

21−24

no data

4K
High Preset

Battlefield 5	12−14	no data
Far Cry New Dawn	9−10	no data
Hitman 3	9−10	no data
Horizon Zero Dawn	12−14	no data
Shadow of the Tomb Raider	7−8	no data
The Witcher 3: Wild Hunt	10−12 +267%	3−4 −267%

4K
Ultra Preset

Assassin's Creed Odyssey	7−8	no data
Assassin's Creed Valhalla	6−7	no data
Call of Duty: Modern Warfare	6−7	no data
Cyberpunk 2077	2−3	no data
Far Cry 5	7−8	no data
Forza Horizon 4	16−18	no data
Horizon Zero Dawn	12−14	no data
Metro Exodus	12−14	no data
Watch Dogs: Legion	5−6	no data