A800 PCIe 40 GB vs GeForce 6800 Ultra
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1280 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 0.30 | no data |
| Architecture | Curie (2003−2013) | Ampere (2020−2024) |
| GPU code name | NV45 | GA100 |
| Market segment | Desktop | Workstation |
| Release date | 26 July 2004 (20 years ago) | 8 November 2022 (2 years ago) |
| Launch price (MSRP) | $499 | 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 | no data | 6912 |
| Core clock speed | 425 MHz | 765 MHz |
| Boost clock speed | no data | 1410 MHz |
| Number of transistors | 222 million | 54,200 million |
| Manufacturing process technology | 130 nm | 7 nm |
| Power consumption (TDP) | 81 Watt | 250 Watt |
| Texture fill rate | 6.800 | 609.1 |
| Floating-point processing power | no data | 19.49 TFLOPS |
| ROPs | 16 | 160 |
| TMUs | 16 | 432 |
| Tensor Cores | no data | 432 |
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 1.0 x16 | PCIe 4.0 x16 |
| Length | 197 mm | 267 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 6-pin | 8-pin EPS |
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 | HBM2e |
| Maximum RAM amount | 256 MB | 40 GB |
| Memory bus width | 256 Bit | 5120 Bit |
| Memory clock speed | 550 MHz | 1215 MHz |
| Memory bandwidth | 35.2 GB/s | 1,555 GB/s |
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 | No outputs |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 9.0c (9_3) | N/A |
| Shader Model | 3.0 | N/A |
| OpenGL | 2.1 | N/A |
| OpenCL | N/A | 3.0 |
| Vulkan | N/A | N/A |
| CUDA | - | 8.0 |
Pros & cons summary
| Recency | 26 July 2004 | 8 November 2022 |
| Maximum RAM amount | 256 MB | 40 GB |
| Chip lithography | 130 nm | 7 nm |
| Power consumption (TDP) | 81 Watt | 250 Watt |
6800 Ultra has 208.6% lower power consumption.
A800 PCIe 40 GB, on the other hand, has an age advantage of 18 years, a 15900% higher maximum VRAM amount, and a 1757.1% more advanced lithography process.
We couldn't decide between GeForce 6800 Ultra and A800 PCIe 40 GB. We've got no test results to judge.
Be aware that GeForce 6800 Ultra is a desktop card while A800 PCIe 40 GB is a workstation 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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