GeForce 8800 GTS 640 vs GTX 780M
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 453 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 5.62 | no data |
| Architecture | Kepler (2012−2018) | Tesla (2006−2010) |
| GPU code name | GK104 | G80 |
| Market segment | Laptop | Desktop |
| Release date | 11 May 2013 (11 years ago) | 8 November 2006 (18 years ago) |
| Launch price (MSRP) | no data | $449 |
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 | 1536 | 96 |
| Core clock speed | 823 MHz | 513 MHz |
| Boost clock speed | 797 MHz | no data |
| Number of transistors | 3,540 million | 681 million |
| Manufacturing process technology | 28 nm | 90 nm |
| Power consumption (TDP) | 122 Watt | 143 Watt |
| Texture fill rate | 102.0 | 24.62 |
| Floating-point processing power | 2.448 TFLOPS | 0.2281 TFLOPS |
| ROPs | 32 | 20 |
| TMUs | 128 | 24 |
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).
| Laptop size | large | no data |
| Bus support | PCI Express 3.0, PCI Express 2.0 | no data |
| Interface | MXM-B (3.0) | PCIe 1.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | None | 1x 6-pin |
| 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 | GDDR5 | GDDR3 |
| Maximum RAM amount | 4 GB | 640 MB |
| Standard memory configuration | GDDR5 | no data |
| Memory bus width | 256 Bit | 320 Bit |
| Memory clock speed | 2500 MHz | 792 MHz |
| Memory bandwidth | 160.0 GB/s | 63.36 GB/s |
| Shared memory | - | - |
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 |
| eDP 1.2 signal support | Up to 3840x2160 | no data |
| LVDS signal support | Up to 1920x1200 | no data |
| VGA аnalog display support | Up to 2048x1536 | no data |
| DisplayPort Multimode (DP++) support | Up to 3840x2160 | no data |
| HDMI | + | - |
| HDCP content protection | + | - |
| 7.1 channel HD audio on HDMI | + | - |
| TrueHD and DTS-HD audio bitstreaming | + | - |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| Blu-Ray 3D Support | + | - |
| H.264, VC1, MPEG2 1080p video decoder | + | - |
| Optimus | + | - |
| 3D Vision / 3DTV Play | + | - |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 API | 11.1 (10_0) |
| Shader Model | 5.1 | 4.0 |
| OpenGL | 4.5 | 3.3 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | 1.1.126 | N/A |
| CUDA | + | + |
Pros & cons summary
| Recency | 11 May 2013 | 8 November 2006 |
| Maximum RAM amount | 4 GB | 640 MB |
| Chip lithography | 28 nm | 90 nm |
| Power consumption (TDP) | 122 Watt | 143 Watt |
GTX 780M has an age advantage of 6 years, a 540% higher maximum VRAM amount, a 221.4% more advanced lithography process, and 17.2% lower power consumption.
We couldn't decide between GeForce GTX 780M and GeForce 8800 GTS 640. We've got no test results to judge.
Be aware that GeForce GTX 780M 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
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