GeForce Go 6800 Ultra vs GTX 660 OEM
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 734 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 1.79 | no data |
| Architecture | Kepler (2012−2018) | Curie (2003−2013) |
| GPU code name | GK104 | NV41 |
| Market segment | Desktop | Laptop |
| Release date | 22 August 2012 (12 years ago) | 24 February 2005 (19 years ago) |
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 | 1152 | 17 |
| Core clock speed | 823 MHz | 450 MHz |
| Boost clock speed | 888 MHz | 450 MHz |
| Number of transistors | 3,540 million | 190 million |
| Manufacturing process technology | 28 nm | 130 nm |
| Power consumption (TDP) | 130 Watt | 89 Watt |
| Texture fill rate | 85.25 | 5.400 |
| Floating-point processing power | 2.046 TFLOPS | no data |
| ROPs | 32 | 8 |
| TMUs | 96 | 12 |
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).
| Laptop size | no data | large |
| Interface | PCIe 3.0 x16 | PCIe 1.0 x16 |
| Length | 241 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 6-pin | None |
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 | GDDR3 |
| Maximum RAM amount | 2 GB | 256 MB |
| Memory bus width | 256 Bit | 256 Bit |
| Memory clock speed | 1400 MHz | 600 MHz |
| Memory bandwidth | 179.2 GB/s | 38.4 GB/s |
| 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 | Portable Device Dependent |
| HDMI | + | - |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 9.0c (9_3) |
| Shader Model | 5.1 | 3.0 |
| OpenGL | 4.6 | 2.0 (full) 2.1 (partial) |
| OpenCL | 1.2 | N/A |
| Vulkan | 1.1.126 | N/A |
| CUDA | 3.0 | - |
Pros & cons summary
| Recency | 22 August 2012 | 24 February 2005 |
| Maximum RAM amount | 2 GB | 256 MB |
| Chip lithography | 28 nm | 130 nm |
| Power consumption (TDP) | 130 Watt | 89 Watt |
GTX 660 OEM has an age advantage of 7 years, a 700% higher maximum VRAM amount, and a 364.3% more advanced lithography process.
Go 6800 Ultra, on the other hand, has 46.1% lower power consumption.
We couldn't decide between GeForce GTX 660 OEM and GeForce Go 6800 Ultra. We've got no test results to judge.
Be aware that GeForce GTX 660 OEM is a desktop card while GeForce Go 6800 Ultra is a notebook 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
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