B100 vs GeForce GT 640 Rev. 2
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 769 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.19 | no data |
| Power efficiency | 5.03 | no data |
| Architecture | Kepler 2.0 (2013−2015) | Blackwell (2024−2025) |
| GPU code name | GK208 | GB102 |
| Market segment | Desktop | Workstation |
| Release date | 29 May 2013 (12 years ago) | November 2024 (recently) |
| Launch price (MSRP) | $89 | no data |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
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 | 384 | 16896 ×2 |
| Core clock speed | 1046 MHz | 1665 MHz |
| Boost clock speed | no data | 1837 MHz |
| Number of transistors | 915 million | 104,000 million |
| Manufacturing process technology | 28 nm | 5 nm |
| Power consumption (TDP) | 49 Watt | 1000 Watt |
| Texture fill rate | 33.47 | 969.9 ×2 |
| Floating-point processing power | 0.8033 TFLOPS | 62.08 TFLOPS ×2 |
| ROPs | 8 | 24 ×2 |
| TMUs | 32 | 528 ×2 |
| Tensor Cores | no data | 528 ×2 |
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 2.0 x8 | PCIe 5.0 x16 |
| Length | 145 mm | no data |
| Width | 1-slot | SXM Module |
| 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 | GDDR5 | HBM3e |
| Maximum RAM amount | 1 GB | 96 GB ×2 |
| Memory bus width | 64 Bit | 4096 Bit ×2 |
| Memory clock speed | 1252 MHz | 2000 MHz |
| Memory bandwidth | 40.06 GB/s | 4.1 TB/s ×2 |
| Resizable BAR | - | + |
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 | 1x DVI, 1x HDMI, 1x VGA | No outputs |
| HDMI | + | - |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | N/A |
| Shader Model | 5.1 | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.1.126 | N/A |
| CUDA | 3.5 | 10.1 |
| DLSS | - | + |
Pros & cons summary
| Maximum RAM amount | 1 GB | 96 GB |
| Chip lithography | 28 nm | 5 nm |
| Power consumption (TDP) | 49 Watt | 1000 Watt |
GT 640 Rev. 2 has 1940.8% lower power consumption.
B100, on the other hand, has a 9500% higher maximum VRAM amount, and a 460% more advanced lithography process.
We couldn't decide between GeForce GT 640 Rev. 2 and B100. We've got no test results to judge.
Be aware that GeForce GT 640 Rev. 2 is a desktop graphics card while B100 is a workstation one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
