GeForce RTX 5090 D vs GT 640 Rev. 2
Aggregate performance score
We've compared GeForce GT 640 Rev. 2 and GeForce RTX 5090 D, covering specs and all relevant benchmarks.
RTX 5090 D outperforms GT 640 Rev. 2 by a whopping 2967% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 741 | 1 |
| Place by popularity | not in top-100 | 99 |
| Cost-effectiveness evaluation | 0.19 | no data |
| Power efficiency | 4.94 | 12.90 |
| Architecture | Kepler 2.0 (2013−2015) | Blackwell 2.0 (2025) |
| GPU code name | GK208 | GB202 |
| Market segment | Desktop | Desktop |
| Release date | 29 May 2013 (11 years ago) | 30 January 2025 (less than a year ago) |
| 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.
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 | 21760 |
| Core clock speed | 1046 MHz | 2017 MHz |
| Boost clock speed | no data | 2407 MHz |
| Number of transistors | 915 million | 92,200 million |
| Manufacturing process technology | 28 nm | 5 nm |
| Power consumption (TDP) | 49 Watt | 575 Watt |
| Texture fill rate | 33.47 | 1,637 |
| Floating-point processing power | 0.8033 TFLOPS | 104.8 TFLOPS |
| ROPs | 8 | 176 |
| TMUs | 32 | 680 |
| Tensor Cores | no data | 680 |
| Ray Tracing Cores | no data | 170 |
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 | 304 mm |
| Width | 1-slot | 2-slot |
| Supplementary power connectors | None | 1x 16-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 | GDDR5 | GDDR7 |
| Maximum RAM amount | 1 GB | 32 GB |
| Memory bus width | 64 Bit | 512 Bit |
| Memory clock speed | 1252 MHz | 1750 MHz |
| Memory bandwidth | 40.06 GB/s | 1.79 TB/s |
| 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 | 1x HDMI 2.1b, 3x DisplayPort 2.1b |
| HDMI | + | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 Ultimate (12_2) |
| Shader Model | 5.1 | 6.8 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.1.126 | 1.4 |
| CUDA | 3.5 | 10.1 |
| DLSS | - | + |
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 3.26 | 100.00 |
| Recency | 29 May 2013 | 30 January 2025 |
| Maximum RAM amount | 1 GB | 32 GB |
| Chip lithography | 28 nm | 5 nm |
| Power consumption (TDP) | 49 Watt | 575 Watt |
GT 640 Rev. 2 has 1073.5% lower power consumption.
RTX 5090 D, on the other hand, has a 2967.5% higher aggregate performance score, an age advantage of 11 years, a 3100% higher maximum VRAM amount, and a 460% more advanced lithography process.
The GeForce RTX 5090 D is our recommended choice as it beats the GeForce GT 640 Rev. 2 in performance tests.
Other comparisons
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