Tesla K20s vs GeForce 8800 Ultra
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1022 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.02 | no data |
| Power efficiency | 0.70 | no data |
| Architecture | Tesla (2006−2010) | Kepler (2012−2018) |
| GPU code name | G80 | GK110 |
| Market segment | Desktop | Workstation |
| Release date | 2 May 2007 (19 years ago) | 18 February 2013 (13 years ago) |
| Launch price (MSRP) | $829 | $3,199 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
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 | 612 | 2496 |
| Core clock speed | 612 MHz | 575 MHz |
| Number of transistors | 681 million | 7,080 million |
| Manufacturing process technology | 90 nm | 28 nm |
| Power consumption (TDP) | 171 Watt | 225 Watt |
| Texture fill rate | 39.17 | 119.6 |
| Floating-point processing power | 0.3871 TFLOPS | 2.87 TFLOPS |
| ROPs | 24 | 40 |
| TMUs | 32 | 208 |
| L1 Cache | no data | 208 KB |
| L2 Cache | 96 KB | 1280 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).
| Interface | PCIe 1.0 x16 | PCIe 2.0 x16 |
| Length | 270 mm | 267 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 2x 6-pin | no data |
| SLI options | + | - |
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 | 512 MB | 5 GB |
| Memory bus width | 384 Bit | 320 Bit |
| Memory clock speed | 1080 MHz | 1300 MHz |
| Memory bandwidth | 103.7 GB/s | 208.0 GB/s |
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 | 2x DVI, 1x S-Video | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.1 (10_0) | 12 (11_0) |
| Shader Model | 4.0 | 5.1 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.1 | 1.2 |
| Vulkan | N/A | 1.1.126 |
| CUDA | + | 3.5 |
Pros & cons summary
| Recency | 2 May 2007 | 18 February 2013 |
| Maximum RAM amount | 512 MB | 5 GB |
| Chip lithography | 90 nm | 28 nm |
| Power consumption (TDP) | 171 Watt | 225 Watt |
8800 Ultra has 32% lower power consumption.
Tesla K20s, on the other hand, has an age advantage of 5 years, a 900% higher maximum VRAM amount, and a 221% more advanced lithography process.
We couldn't decide between GeForce 8800 Ultra and Tesla K20s. We've got no test results to judge.
Be aware that GeForce 8800 Ultra is a desktop graphics card while Tesla K20s is a workstation one.
Other comparisons
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