Intel Iris Plus Graphics 640
The Intel Iris Plus Graphics 640 (GT3e) is a processor graphics card for Kaby Lake models announced in January 2017. As the successor to the Intel Iris Graphics 540 (Skylake), the Iris Plus Graphics 640 is used for 15-Watt ULV models and is equipped with 64 MB eDRAM cache. There should not be any big changes compared to the Iris Graphics 540.
The so called GT3e version of the Kaby Lake GPU still has 48 Execution Units (EUs), which can reach up to 1050 MHz depending on the model. Besides eDRAM cache, the Iris 640 can also access the system memory (2x 64 Bit DDR3L-1600/LPDDR3-1866/DDR4-2400) via processor interface.
Compared to the Iris Plus 650 from the 28-Watt models, the Iris 640 only has a slightly lower maximum clock as well as the lower TDP, so the utilization of the Turbo Boost potential should be worse.
Performance
The exact performance of the Iris Plus Graphics 640 depends on the CPU model, because maximum clock as well as the size of the L3 cache can differ a bit. The system memory (DDR3/DDR4) will influence the performance as well.
The fastest chips are high-clocked Core i7 models like the Core i7-7660U. Depending on the game, the Iris Plus 640 will probably be similar to the previous model somewhere between a dedicated GeForce 920M and GeForce 940M and is usually limited to low settings in modern games.
Features
The reworked video engine now fully supports hardware decoding of H.265/HEVC videos. Contrary to Skylake, however, Kaby Lake can now also decode H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The video output is possible via DP 1.2/eDP 1.3 (up to 3840 x 2160 @60 Hz), whereas HDMI is also supported in the older 1.4a standard. An HDMI 2.0 output can be added via converter from DisplayPort. The GPU can drive up to three displays simultaneously.
Power Consumption
The Iris Plus Graphics 640 is used for 15-Watt ULV processor and therefore thin notebooks and Ultrabooks.
| Manufacturer | Intel |
| Gen. 9.5 Series | |
| Codename | Kaby Lake GT3e |
| Architecture | Gen. 9.5 Kaby Lake |
| Pipelines | 48 - unified |
| Core Speed | 300 - 1050 (Boost) MHz |
| Memory Bus Width | 64/128 Bit |
| Memory Type | DDR3/DDR4 |
| Max. Amount of Memory | 64 MB |
| Shared Memory | yes |
| DirectX | DirectX 12_1 |
| technology | 14 nm |
| Features | QuickSync |
| Date of Announcement | 03.01.2017 |
Benchmarks
3DMark - Time Spy Score 2560x1440
min: 467 avg: 500 median: 494.5 (3%) max: 543 Points
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Intel Iris Plus Graphics 640
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3DMark - Time Spy Graphics 2560x1440
min: 413 avg: 443 median: 437 (3%) max: 483 Points
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Intel Iris Plus Graphics 640
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3DMark - Ice Storm Unlimited Graphics Score 1280x720 offscreen
min: 142163 avg: 147298 median: 145481 (27%) max: 154251 Points
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NVIDIA GeForce GTX 460 768MB -10%
Intel Iris Plus Graphics 640
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3DMark - Cloud Gate Standard Score 1280x720
min: 7558 avg: 8025 median: 8067 (12%) max: 8711 Points
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Intel Iris Plus Graphics 640
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3DMark - Cloud Gate Standard Graphics 1280x720
min: 10486 avg: 11119 median: 11248 (6%) max: 11495 Points
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Intel Iris Plus Graphics 640
ATI Radeon HD 4850 1%
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3DMark - Fire Strike Score 1920x1080
min: 1236 avg: 1349 median: 1310 (4%) max: 1509 Points
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Intel Iris Plus Graphics 640
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3DMark - Fire Strike Graphics 1920x1080
min: 1315 avg: 1411 median: 1393.5 (3%) max: 1541 Points
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Intel Iris Plus Graphics 640
NVIDIA GeForce GTS 450 9%
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3DMark 11 - Performance 1280x720
min: 2136 avg: 2440 median: 2561 (7%) max: 2664 points
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Intel Iris Plus Graphics 640
NVIDIA GeForce GTX 550 Ti 1%
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3DMark 11 - Performance GPU 1280x720
min: 1980 avg: 2275 median: 2379 (5%) max: 2493 points
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NVIDIA GeForce GTX 550 Ti 0%
Intel Iris Plus Graphics 640
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3DMark 06 Standard 1280x1024 +min: 13164 avg: 14118 median: 14117.5 (29%) max: 15071 Points
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Intel Iris Plus Graphics 640
ATI Radeon HD 4850 0%
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Unigine Valley 1.0 - Extreme HD DirectX 1920x1080
6.5 fps (4%)
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Intel Iris Plus Graphics 640
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Cinebench R10 Shading 32Bit +Cinebench R10 - Shading 32Bit
min: 8824 avg: 9678 median: 9703 (49%) max: 10506 Points
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Intel Iris Plus Graphics 640
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Cinebench R11.5 OpenGL 64Bit +Cinebench R11.5 - OpenGL 64Bit
46.1 Points (26%)
Intel Iris Plus Graphics 640
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Cinebench R15
OpenGL 64Bit +Cinebench R15 - OpenGL 64Bit
min: 41.32 avg: 54 median: 56.2 (23%) max: 62.34 Points
Intel Iris Plus Graphics 640
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Ref. Match 64Bit +Cinebench R15 - Ref. Match 64Bit
min: 97.8 avg: 98.2 median: 97.8 (98%) max: 99.3 Points
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Intel Iris Plus Graphics 640
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GFXBench (DX / GLBenchmark) 2.7
T-Rex HD Offscreen C24Z16 1920x1080 +GFXBench (DX / GLBenchmark) 2.7 - T-Rex HD Offscreen C24Z16 1920x1080
171 fps (1%)
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Intel Iris Plus Graphics 640
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T-Rex HD Onscreen C24Z16 +GFXBench (DX / GLBenchmark) 2.7 - T-Rex HD Onscreen C24Z16
59.8 fps (2%)
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Intel Iris Plus Graphics 640
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GFXBench 3.0 - Manhattan Offscreen OGL off screen
31.2 fps (5%)
Intel Iris Plus Graphics 640
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GFXBench 3.0 - Manhattan Onscreen OGL on screen
77 fps (21%)
Intel Iris Plus Graphics 640
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GFXBench - Car Chase Offscreen off screen
40.7 fps (9%)
Intel Iris Plus Graphics 640
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GFXBench - Car Chase Onscreen on screen
15.6 fps (6%)
Intel Iris Plus Graphics 640
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LuxMark v2.0 64Bit - Room GPUs-only
min: 315 avg: 325 median: 325 (6%) max: 335 Samples/s
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Intel Iris Plus Graphics 640
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LuxMark v2.0 64Bit - Sala GPUs-only
min: 748 avg: 779 median: 778.5 (7%) max: 809 Samples/s
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Intel Iris Plus Graphics 640
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ComputeMark v2.1 - Normal, Score 1024x600
min: 1575 avg: 1677 median: 1677 (6%) max: 1779 Points
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Intel Iris Plus Graphics 640
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Power Consumption - FurMark 1.19 GPU Stress Test - Power Consumption (external Monitor) 1280x720 *
min: 30.8 avg: 33.6 median: 31.5 (7%) max: 38.5 Watt
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Intel Iris Plus Graphics 640
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Power Consumption - The Witcher 3 Power Consumption (external Monitor) ultra 1920x1080 *
min: 28 avg: 33.5 median: 33.5 (7%) max: 38.9 Watt
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Intel Iris Plus Graphics 640
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Power Consumption - Witcher 3 ultra - Power Consumption *
min: 31.7 avg: 34.9 median: 34.9 (8%) max: 38.1 Watt
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Intel Iris Plus Graphics 640
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Clock Speed - GPU Clock Witcher 3 ultra
min: 748 avg: 823 median: 823 (43%) max: 898 MHz
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Intel Iris Plus Graphics 640
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Clock Speed - GPU Clock Speed Furmark 1.19 GPU Stress Test 1280x720
min: 570 avg: 634 median: 634 (36%) max: 698 MHz
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Intel Iris Plus Graphics 640
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- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
Game Benchmarks
The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailed information on the benchmark results, click on the fps number.
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Intel Iris Plus Graphics 640
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» The benchmarks indicate that the game is not playable in the tested settings.
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Intel Iris Plus Graphics 640
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» The benchmarks indicate that the game is not playable in the tested settings.
Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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» With all tested laptops playable in detail settings med..
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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» With most tested laptops playable in detail settings low.
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Intel Iris Plus Graphics 640
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» The benchmarks indicate that the game is not playable in the tested settings.
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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» With all tested laptops playable in detail settings high.
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Intel Iris Plus Graphics 640
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» The benchmarks indicate that the game is not playable in the tested settings.
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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» With most tested laptops playable in detail settings med..
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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» With all tested laptops playable in detail settings low.
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Intel Iris Plus Graphics 640
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» The benchmarks indicate that the game is not playable in the tested settings.
Intel Iris Plus Graphics 640
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» The benchmarks indicate that the game is not playable in the tested settings.
...
Intel Iris Plus Graphics 640
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» The benchmarks indicate that the game is not playable in the tested settings.
...
Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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» The benchmarks indicate that the game is not playable in the tested settings.
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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» With all tested laptops playable in detail settings low.
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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» With all tested laptops playable in detail settings med..
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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...
Intel Iris Plus Graphics 640
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» The benchmarks indicate that the game is not playable in the tested settings.
...
Intel Iris Plus Graphics 640
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» The benchmarks indicate that the game is not playable in the tested settings.
Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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Intel Iris Plus Graphics 640
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» With most tested laptops playable in detail settings med..
Intel Iris Plus Graphics 640
...
» The benchmarks indicate that the game is not playable in the tested settings.
...
Intel Iris Plus Graphics 640
...
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Intel Iris Plus Graphics 640
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