Iris Plus Graphics 645 vs Radeon HD 8790M

Place in performance ranking	693	652
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.33	no data
Architecture	GCN (2011−2017)	Gen. 9.5 Coffee Lake (2019)
GPU code name	Mars XTX	Kaby Lake GT3e
Market segment	Laptop	Laptop
Release date	16 November 2012 (11 years ago)	10 July 2019 (4 years ago)
Current price	$460	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	384	48
Core clock speed	850 MHz	300 MHz
Boost clock speed	900 MHz	1150 MHz
Number of transistors	950 million	no data
Manufacturing process technology	28 nm	14 nm
Power consumption (TDP)	unknown	15 Watt
Texture fill rate	21.60	50.40
Floating-point performance	691.2 gflops	no data

Form factor & compatibility

Information on Radeon HD 8790M and Iris Plus Graphics 645 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	no data
Interface	MXM-A (3.0)	PCIe 3.0 x1
Supplementary power connectors	None	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	2 GB	System Shared
Memory bus width	128 Bit	System Shared
Memory clock speed	4500 MHz	System Shared
Memory bandwidth	64 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

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

DirectX	12 (11_1)	12 (12_1)
Shader Model	5.1	6.4
OpenGL	4.6	4.6
OpenCL	1.2	2.1
Vulkan	1.2.131	1.1.103

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.

HD 8790M 3.37

Iris Plus Graphics 645 3.98
+18.1%

Iris Plus Graphics 645 outperforms Radeon HD 8790M by 18% based on our aggregated 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%

HD 8790M 1305

Iris Plus Graphics 645 1727
+32.3%

Iris Plus Graphics 645 outperforms Radeon HD 8790M by 32% in Passmark.

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

Benchmark coverage: 17%

HD 8790M 2187

Iris Plus Graphics 645 2985
+36.5%

Iris Plus Graphics 645 outperforms Radeon HD 8790M by 37% in 3DMark 11 Performance GPU.

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%

HD 8790M 1727

Iris Plus Graphics 645 1893
+9.6%

Iris Plus Graphics 645 outperforms Radeon HD 8790M by 10% 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

28
+7.7%

−7.7%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

6−7

−16.7%

7−8
+16.7%

Full HD
Medium Preset

Assassin's Creed Odyssey	5−6 −40%	7−8 +40%
Assassin's Creed Valhalla	1−2 −100%	2−3 +100%
Battlefield 5	8−9 −37.5%	10−12 +37.5%
Call of Duty: Modern Warfare	12−14 −7.7%	14−16 +7.7%
Cyberpunk 2077	6−7 −16.7%	7−8 +16.7%
Far Cry 5	6−7 −16.7%	7−8 +16.7%
Far Cry New Dawn	6−7 −33.3%	8−9 +33.3%
Forza Horizon 4	9−10 −33.3%	12−14 +33.3%
Hitman 3	7−8 −14.3%	8−9 +14.3%
Horizon Zero Dawn	6−7 −16.7%	7−8 +16.7%
Red Dead Redemption 2	7−8 −14.3%	8−9 +14.3%
Shadow of the Tomb Raider	10−11 −10%	10−12 +10%
Watch Dogs: Legion	3−4 −33.3%	4−5 +33.3%

Full HD
High Preset

Assassin's Creed Odyssey	5−6 −40%	7−8 +40%
Assassin's Creed Valhalla	1−2 −100%	2−3 +100%
Battlefield 5	8−9 −37.5%	10−12 +37.5%
Call of Duty: Modern Warfare	12−14 −7.7%	14−16 +7.7%
Cyberpunk 2077	6−7 −16.7%	7−8 +16.7%
Far Cry 5	6−7 −16.7%	7−8 +16.7%
Far Cry New Dawn	6−7 −33.3%	8−9 +33.3%
Forza Horizon 4	9−10 −33.3%	12−14 +33.3%
Hitman 3	7−8 −14.3%	8−9 +14.3%
Horizon Zero Dawn	6−7 −16.7%	7−8 +16.7%
Metro Exodus	5−6 +0%	5−6 +0%
Red Dead Redemption 2	7−8 −14.3%	8−9 +14.3%
Shadow of the Tomb Raider	10−11 −10%	10−12 +10%
The Witcher 3: Wild Hunt	8−9 −12.5%	9−10 +12.5%
Watch Dogs: Legion	3−4 −33.3%	4−5 +33.3%

Full HD
Ultra Preset

Assassin's Creed Odyssey	5−6 −40%	7−8 +40%
Assassin's Creed Valhalla	1−2 −100%	2−3 +100%
Battlefield 5	8−9 −37.5%	10−12 +37.5%
Cyberpunk 2077	6−7 −16.7%	7−8 +16.7%
Far Cry 5	6−7 −16.7%	7−8 +16.7%
Far Cry New Dawn	6−7 −33.3%	8−9 +33.3%
Forza Horizon 4	9−10 −33.3%	12−14 +33.3%
The Witcher 3: Wild Hunt	8−9 −12.5%	9−10 +12.5%
Watch Dogs: Legion	3−4 −33.3%	4−5 +33.3%

1440p
High Preset

Call of Duty: Modern Warfare	6−7 +0%	6−7 +0%
Hitman 3	6−7 −16.7%	7−8 +16.7%
Horizon Zero Dawn	10−11 +0%	10−11 +0%
Metro Exodus	1−2 −100%	2−3 +100%
Red Dead Redemption 2	2−3 +0%	2−3 +0%
Shadow of the Tomb Raider	7−8 +0%	7−8 +0%

1440p
Ultra Preset

Assassin's Creed Odyssey	1−2 −100%	2−3 +100%
Cyberpunk 2077	2−3 +0%	2−3 +0%
Far Cry 5	5−6 −20%	6−7 +20%
Far Cry New Dawn	0−1	2−3
Forza Horizon 4	2−3 −100%	4−5 +100%
The Witcher 3: Wild Hunt	3−4 −33.3%	4−5 +33.3%

4K
High Preset

Call of Duty: Modern Warfare	3−4 +0%	3−4 +0%
Hitman 3	3−4 −33.3%	4−5 +33.3%
Horizon Zero Dawn	7−8 +0%	7−8 +0%
Red Dead Redemption 2	1−2 −100%	2−3 +100%
Shadow of the Tomb Raider	0−1	1−2

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −100%	2−3 +100%
Assassin's Creed Valhalla	1−2 +0%	1−2 +0%
Cyberpunk 2077	0−1	0−1
Far Cry 5	4−5 +0%	4−5 +0%
Far Cry New Dawn	6−7 +0%	6−7 +0%