GeForce 8400 GS PCI Rev. 2 vs Tesla K40st
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | Kepler (2012−2018) | Tesla 2.0 (2007−2013) |
| GPU code name | GK110B | GT218 |
| Market segment | Workstation | Desktop |
| Release date | 22 November 2013 (11 years ago) | 17 April 2007 (18 years ago) |
| Launch price (MSRP) | $7,699 | no data |
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 | 2880 | 16 |
| Core clock speed | 575 MHz | 520 MHz |
| Number of transistors | 7,080 million | 260 million |
| Manufacturing process technology | 28 nm | 40 nm |
| Power consumption (TDP) | 245 Watt | 40 Watt |
| Texture fill rate | 138.0 | 4.160 |
| Floating-point processing power | 3.312 TFLOPS | 0.03936 TFLOPS |
| ROPs | 48 | 4 |
| TMUs | 240 | 8 |
| L1 Cache | 240 KB | no data |
| L2 Cache | 1536 KB | 32 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 3.0 x16 | PCI |
| Length | 267 mm | no data |
| Width | 2-slot | 1-slot |
| Supplementary power connectors | no data | 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 | DDR3 |
| Maximum RAM amount | 12 GB | 512 MB |
| Memory bus width | 384 Bit | 64 Bit |
| Memory clock speed | 1502 MHz | 500 MHz |
| Memory bandwidth | 288.4 GB/s | 8 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 | No outputs | 1x DVI, 1x HDMI, 1x VGA |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_1) | 11.1 (10_1) |
| Shader Model | 5.1 | 4.1 |
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.1.126 | N/A |
| CUDA | 3.5 | 1.2 |
Pros & cons summary
| Recency | 22 November 2013 | 17 April 2007 |
| Maximum RAM amount | 12 GB | 512 MB |
| Chip lithography | 28 nm | 40 nm |
| Power consumption (TDP) | 245 Watt | 40 Watt |
Tesla K40st has an age advantage of 6 years, a 2300% higher maximum VRAM amount, and a 42.9% more advanced lithography process.
8400 GS PCI Rev. 2, on the other hand, has 512.5% lower power consumption.
We couldn't decide between Tesla K40st and GeForce 8400 GS PCI Rev. 2. We've got no test results to judge.
Be aware that Tesla K40st is a workstation graphics card while GeForce 8400 GS PCI Rev. 2 is a desktop one.
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