GeForce 6800 Ultra vs RTX A40
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 1370 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 0.31 |
| Architecture | Ampere (2020−2025) | Curie (2003−2013) |
| GPU code name | GA102 | NV45 |
| Market segment | Workstation | Desktop |
| Release date | 5 October 2020 (5 years ago) | 26 July 2004 (21 years ago) |
| Launch price (MSRP) | no data | $499 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
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 | 10752 | no data |
| Core clock speed | 1305 MHz | 425 MHz |
| Boost clock speed | 1755 MHz | no data |
| Number of transistors | 28,300 million | 222 million |
| Manufacturing process technology | 8 nm | 130 nm |
| Power consumption (TDP) | 300 Watt | 81 Watt |
| Texture fill rate | 589.7 | 6.800 |
| Floating-point processing power | 37.74 TFLOPS | no data |
| ROPs | 112 | 16 |
| TMUs | 336 | 16 |
| Tensor Cores | 336 | no data |
| Ray Tracing Cores | 84 | no data |
| L1 Cache | 10.5 MB | no data |
| L2 Cache | 6 MB | no data |
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 4.0 x16 | PCIe 1.0 x16 |
| Length | 267 mm | 197 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 8-pin EPS | 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 | GDDR6 | GDDR3 |
| Maximum RAM amount | 48 GB | 256 MB |
| Memory bus width | 384 Bit | 256 Bit |
| Memory clock speed | 1812 MHz | 550 MHz |
| Memory bandwidth | 695.8 GB/s | 35.2 GB/s |
| Resizable BAR | + | - |
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 | 3x DisplayPort | 2x DVI, 1x S-Video |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 9.0c (9_3) |
| Shader Model | 6.5 | 3.0 |
| OpenGL | 4.6 | 2.1 |
| OpenCL | 2.0 | N/A |
| Vulkan | 1.2 | N/A |
| CUDA | 8.6 | - |
| DLSS | + | - |
Pros & cons summary
| Recency | 5 October 2020 | 26 July 2004 |
| Maximum RAM amount | 48 GB | 256 MB |
| Chip lithography | 8 nm | 130 nm |
| Power consumption (TDP) | 300 Watt | 81 Watt |
RTX A40 has an age advantage of 16 years, a 19100% higher maximum VRAM amount, and a 1525% more advanced lithography process.
6800 Ultra, on the other hand, has 270.4% lower power consumption.
We couldn't decide between RTX A40 and GeForce 6800 Ultra. We've got no test results to judge.
Be aware that RTX A40 is a workstation graphics card while GeForce 6800 Ultra is a desktop one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
