GeForce 8800 GTS 640 vs UHD Graphics 620
Primary Details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 772 | not rated |
| Place by popularity | 18 | not in top-100 |
| Cost-Effectiveness Evaluation | 0.75 | no data |
| Architecture | Gen. 9.5 (2017) | Tesla (2006−2010) |
| GPU code name | Kaby-Lake-Refresh GT2 | G80 |
| Market segment | Laptop | Desktop |
| Release date | 1 September 2017 (6 years ago) | 8 November 2006 (17 years ago) |
| Launch price (MSRP) | no data | $449 |
| Current price | $706 | $254 (0.6x MSRP) |
Cost-Effectiveness Evaluation
Performance to price ratio. The higher, the better.
Detailed Specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 24 | 96 |
| Core clock speed | 300 MHz | 513 MHz |
| Boost clock speed | 1150 MHz | no data |
| Number of transistors | 189 million | 681 million |
| Manufacturing process technology | 14 nm | 90 nm |
| Power consumption (TDP) | 15 Watt | 143 Watt |
| Texture fill rate | 27.60 | 24.62 |
| Floating-point performance | no data | 228.1 gflops |
Form Factor & Compatibility
Information on UHD Graphics 620 and GeForce 8800 GTS 640 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Interface | PCIe 3.0 x1 | PCIe 1.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 1x 6-pin |
| Memory type | LPDDR3/DDR4 | GDDR3 |
| Maximum RAM amount | 32 GB | 640 MB |
| Memory bus width | System Shared | 320 Bit |
| Memory clock speed | System Shared | 1584 MHz |
| Memory bandwidth | no data | 63.36 GB/s |
| Shared memory | + | no data |
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 | No outputs | 2x DVI, 1x S-Video |
Supported Technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| Quick Sync | + | no data |
API Compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 11.1 (10_0) |
| Shader Model | 6.4 | 4.0 |
| OpenGL | 4.6 | 3.3 |
| OpenCL | 2.1 | 1.1 |
| Vulkan | 1.1.103 | N/A |
| CUDA | no data | + |
Pros & Cons Summary
| Recency | 1 September 2017 | 8 November 2006 |
| Maximum RAM amount | 32 GB | 640 MB |
| Chip lithography | 14 nm | 90 nm |
| Power consumption (TDP) | 15 Watt | 143 Watt |
We couldn't decide between UHD Graphics 620 and GeForce 8800 GTS 640. We've got no test results to judge.
Be aware that UHD Graphics 620 is a notebook card while GeForce 8800 GTS 640 is a desktop one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with Similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
