Iris Plus Graphics 640 vs ATI Radeon HD 3870 X2
Aggregate performance score
We've compared Radeon HD 3870 X2 and Iris Plus Graphics 640, covering specs and all relevant benchmarks.
Iris Plus Graphics 640 outperforms ATI HD 3870 X2 by a whopping 111% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 912 | 696 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.04 | no data |
| Power efficiency | 0.77 | 17.82 |
| Architecture | TeraScale (2005−2013) | Generation 9.5 (2016−2020) |
| GPU code name | R680 | Kaby Lake GT3e |
| Market segment | Desktop | Desktop |
| Release date | 26 January 2008 (16 years ago) | 3 January 2017 (7 years ago) |
| Launch price (MSRP) | $449 | no data |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 320 | 384 |
| Core clock speed | 825 MHz | 300 MHz |
| Boost clock speed | no data | 1100 MHz |
| Number of transistors | 666 million | 189 million |
| Manufacturing process technology | 55 nm | 14 nm++ |
| Power consumption (TDP) | 165 Watt | 15 Watt |
| Texture fill rate | 13.20 | 52.80 |
| Floating-point processing power | 0.528 TFLOPS | 0.8448 TFLOPS |
| ROPs | 16 | 6 |
| TMUs | 16 | 48 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 2.0 x16 | Ring Bus |
| Length | 267 mm | no data |
| Width | 2-slot | IGP |
| Supplementary power connectors | 1x 6-pin + 1x 8-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 | GDDR3 | DDR3L/LPDDR3/DDR4 |
| Maximum RAM amount | 512 MB | 32 GB |
| Memory bus width | 256 Bit | System Shared |
| Memory clock speed | 901 MHz | System Shared |
| Memory bandwidth | 57.66 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 S-Video | Portable Device Dependent |
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 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 10.1 (10_1) | 12 (12_1) |
| Shader Model | 4.1 | 6.4 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | N/A | 3.0 |
| Vulkan | N/A | 1.3 |
Synthetic benchmark performance
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark 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.
Passmark
This is the most ubiquitous GPU benchmark. 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.
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 | 9−10
−133%
| 21
+133%
|
Cost per frame, $
| 1080p | 49.89 | no data |
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 7−8
+0%
|
7−8
+0%
|
Full HD
Medium Preset
| Assassin's Creed Odyssey | 10−12
+0%
|
10−12
+0%
|
| Assassin's Creed Valhalla | 3−4
+0%
|
3−4
+0%
|
| Battlefield 5 | 8−9
+0%
|
8−9
+0%
|
| Call of Duty: Modern Warfare | 9−10
+0%
|
9−10
+0%
|
| Cyberpunk 2077 | 7−8
+0%
|
7−8
+0%
|
| Far Cry 5 | 8−9
+0%
|
8−9
+0%
|
| Far Cry New Dawn | 10−12
+0%
|
10−12
+0%
|
| Forza Horizon 4 | 21−24
+0%
|
21−24
+0%
|
| Hitman 3 | 9−10
+0%
|
9−10
+0%
|
| Horizon Zero Dawn | 27−30
+0%
|
27−30
+0%
|
| Metro Exodus | 7−8
+0%
|
7−8
+0%
|
| Red Dead Redemption 2 | 10−11
+0%
|
10−11
+0%
|
| Shadow of the Tomb Raider | 14−16
+0%
|
14−16
+0%
|
| Watch Dogs: Legion | 40−45
+0%
|
40−45
+0%
|
Full HD
High Preset
| Assassin's Creed Odyssey | 10−12
+0%
|
10−12
+0%
|
| Assassin's Creed Valhalla | 3−4
+0%
|
3−4
+0%
|
| Battlefield 5 | 8−9
+0%
|
8−9
+0%
|
| Call of Duty: Modern Warfare | 9−10
+0%
|
9−10
+0%
|
| Cyberpunk 2077 | 7−8
+0%
|
7−8
+0%
|
| Far Cry 5 | 8−9
+0%
|
8−9
+0%
|
| Far Cry New Dawn | 10−12
+0%
|
10−12
+0%
|
| Forza Horizon 4 | 21−24
+0%
|
21−24
+0%
|
| Hitman 3 | 9−10
+0%
|
9−10
+0%
|
| Horizon Zero Dawn | 27−30
+0%
|
27−30
+0%
|
| Metro Exodus | 7−8
+0%
|
7−8
+0%
|
| Red Dead Redemption 2 | 10−11
+0%
|
10−11
+0%
|
| Shadow of the Tomb Raider | 14−16
+0%
|
14−16
+0%
|
| The Witcher 3: Wild Hunt | 16−18
+0%
|
16−18
+0%
|
| Watch Dogs: Legion | 40−45
+0%
|
40−45
+0%
|
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 10−12
+0%
|
10−12
+0%
|
| Assassin's Creed Valhalla | 3−4
+0%
|
3−4
+0%
|
| Call of Duty: Modern Warfare | 9−10
+0%
|
9−10
+0%
|
| Cyberpunk 2077 | 7−8
+0%
|
7−8
+0%
|
| Far Cry 5 | 8−9
+0%
|
8−9
+0%
|
| Forza Horizon 4 | 21−24
+0%
|
21−24
+0%
|
| Hitman 3 | 9−10
+0%
|
9−10
+0%
|
| Horizon Zero Dawn | 27−30
+0%
|
27−30
+0%
|
| Shadow of the Tomb Raider | 14−16
+0%
|
14−16
+0%
|
| The Witcher 3: Wild Hunt | 4
+0%
|
4
+0%
|
| Watch Dogs: Legion | 40−45
+0%
|
40−45
+0%
|
Full HD
Epic Preset
| Red Dead Redemption 2 | 10−11
+0%
|
10−11
+0%
|
1440p
High Preset
| Battlefield 5 | 7−8
+0%
|
7−8
+0%
|
| Far Cry New Dawn | 6−7
+0%
|
6−7
+0%
|
1440p
Ultra Preset
| Assassin's Creed Odyssey | 3−4
+0%
|
3−4
+0%
|
| Call of Duty: Modern Warfare | 3−4
+0%
|
3−4
+0%
|
| Cyberpunk 2077 | 2−3
+0%
|
2−3
+0%
|
| Far Cry 5 | 4−5
+0%
|
4−5
+0%
|
| Forza Horizon 4 | 4−5
+0%
|
4−5
+0%
|
| Hitman 3 | 8−9
+0%
|
8−9
+0%
|
| Horizon Zero Dawn | 9−10
+0%
|
9−10
+0%
|
| The Witcher 3: Wild Hunt | 3−4
+0%
|
3−4
+0%
|
| Watch Dogs: Legion | 24−27
+0%
|
24−27
+0%
|
1440p
Epic Preset
| Red Dead Redemption 2 | 7−8
+0%
|
7−8
+0%
|
4K
High Preset
| Battlefield 5 | 2−3
+0%
|
2−3
+0%
|
| Far Cry New Dawn | 2−3
+0%
|
2−3
+0%
|
| Metro Exodus | 0−1 | 0−1 |
4K
Ultra Preset
| Assassin's Creed Odyssey | 3−4
+0%
|
3−4
+0%
|
| Assassin's Creed Valhalla | 2−3
+0%
|
2−3
+0%
|
| Call of Duty: Modern Warfare | 1−2
+0%
|
1−2
+0%
|
| Cyberpunk 2077 | 0−1 | 0−1 |
| Far Cry 5 | 2−3
+0%
|
2−3
+0%
|
| Forza Horizon 4 | 2−3
+0%
|
2−3
+0%
|
| Watch Dogs: Legion | 1−2
+0%
|
1−2
+0%
|
4K
Epic Preset
| Red Dead Redemption 2 | 5−6
+0%
|
5−6
+0%
|
This is how ATI HD 3870 X2 and Iris Plus Graphics 640 compete in popular games:
- Iris Plus Graphics 640 is 133% faster in 1080p
All in all, in popular games:
- there's a draw in 63 tests (100%)
Pros & cons summary
| Performance score | 1.83 | 3.86 |
| Recency | 26 January 2008 | 3 January 2017 |
| Maximum RAM amount | 512 MB | 32 GB |
| Chip lithography | 55 nm | 14 nm |
| Power consumption (TDP) | 165 Watt | 15 Watt |
Iris Plus Graphics 640 has a 110.9% higher aggregate performance score, an age advantage of 8 years, a 6300% higher maximum VRAM amount, a 292.9% more advanced lithography process, and 1000% lower power consumption.
The Iris Plus Graphics 640 is our recommended choice as it beats the Radeon HD 3870 X2 in performance tests.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
