GeForce 6800 Ultra vs Iris Plus Graphics 655
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 643 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.94 | no data |
| Architecture | Gen. 9.5 Kaby Lake (2015−2017) | Curie (2003−2013) |
| GPU code name | Kaby Lake GT3e | NV45 |
| Market segment | Laptop | Desktop |
| Release date | 1 September 2017 (6 years ago) | 26 July 2004 (19 years ago) |
| Launch price (MSRP) | no data | $499 |
| Current price | $999 | $300 (0.6x MSRP) |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
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 | 48 | no data |
| Core clock speed | 300 MHz | 425 MHz |
| Boost clock speed | 1200 MHz | no data |
| Number of transistors | 189 million | 222 million |
| Manufacturing process technology | 14 nm | 130 nm |
| Power consumption (TDP) | 15 Watt | 81 Watt |
| Texture fill rate | 50.40 | 6.800 |
Form factor & compatibility
Information on Iris Plus Graphics 655 and GeForce 6800 Ultra 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.
| Interface | PCIe 3.0 x1 | PCIe 1.0 x16 |
| Length | no data | 197 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 1x 6-pin |
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/DDR4 | GDDR3 |
| Maximum RAM amount | System Shared | 256 MB |
| Memory bus width | System Shared | 256 Bit |
| Memory clock speed | System Shared | 1100 MHz |
| Memory bandwidth | no data | 35.2 GB/s |
| Shared memory | + | no data |
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 | 2x DVI, 1x S-Video |
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 (12_1) | 9.0c (9_3) |
| Shader Model | 6.4 | 3.0 |
| OpenGL | 4.6 | 2.1 |
| OpenCL | 2.1 | N/A |
| Vulkan | 1.1.103 | N/A |
Synthetic benchmark performance
Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.
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%
Iris Plus Graphics 655 outperforms GeForce 6800 Ultra by 1160% in Passmark.
Pros & cons summary
| Recency | 1 September 2017 | 26 July 2004 |
| Maximum RAM amount | System Shared | 256 MB |
| Chip lithography | 14 nm | 130 nm |
| Power consumption (TDP) | 15 Watt | 81 Watt |
We couldn't decide between Iris Plus Graphics 655 and GeForce 6800 Ultra. We've got no test results to judge.
Be aware that Iris Plus Graphics 655 is a notebook card while GeForce 6800 Ultra is a desktop one.
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.
