GeForce GT 645 OEM vs Go 6800
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1439 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 0.43 | no data |
| Architecture | Curie (2003−2013) | Fermi 2.0 (2010−2014) |
| GPU code name | NV41 | GF114 |
| Market segment | Laptop | Desktop |
| Release date | 8 November 2004 (21 years ago) | 24 April 2012 (14 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. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 17 | 288 |
| Core clock speed | 300 MHz | 776 MHz |
| Boost clock speed | 300 MHz | no data |
| Number of transistors | 190 million | 1,950 million |
| Manufacturing process technology | 130 nm | 40 nm |
| Power consumption (TDP) | 45 Watt | 102 Watt |
| Texture fill rate | 3.600 | 37.25 |
| Floating-point processing power | no data | 0.894 TFLOPS |
| ROPs | 8 | 24 |
| TMUs | 12 | 48 |
| L1 Cache | no data | 384 KB |
| L2 Cache | no data | 384 KB |
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 | large | no data |
| Interface | MXM-III | PCIe 2.0 x16 |
| Length | no data | 210 mm |
| Width | no data | 2-slot |
| 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 | GDDR3 | GDDR5 |
| Maximum RAM amount | 256 MB | 1 GB |
| Memory bus width | 256 Bit | 192 Bit |
| Memory clock speed | 550 MHz | 957 MHz |
| Memory bandwidth | 35.2 GB/s | 91.87 GB/s |
| Shared memory | - | - |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | Portable Device Dependent | 2x DVI, 1x mini-HDMI |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 9.0c (9_3) | 12 (11_0) |
| Shader Model | 3.0 | 5.1 |
| OpenGL | 2.0 (full) 2.1 (partial) | 4.6 |
| OpenCL | N/A | 1.1 |
| Vulkan | N/A | N/A |
| CUDA | - | 2.1 |
Pros & cons summary
| Recency | 8 November 2004 | 24 April 2012 |
| Maximum RAM amount | 256 MB | 1 GB |
| Chip lithography | 130 nm | 40 nm |
| Power consumption (TDP) | 45 Watt | 102 Watt |
Go 6800 has 127% lower power consumption.
GT 645 OEM, on the other hand, has an age advantage of 7 years, a 300% higher maximum VRAM amount, and a 225% more advanced lithography process.
We couldn't decide between GeForce Go 6800 and GeForce GT 645 OEM. We've got no test results to judge.
Be aware that GeForce Go 6800 is a notebook graphics card while GeForce GT 645 OEM is a desktop one.
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