GeForce 9800 GTX vs GeForce GT 640M
If you are going to buy a new graphics card and are choosing between GeForce 9800 GTX and GeForce GT 640M, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce 9800 GTX stacks up against GeForce GT 640M, check out specs charts below.
GeForce 9800 GTX
GeForce GT 640M is a Laptop Graphics Card
Note: GeForce GT 640M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GT 640M here:
Main Specs
| GeForce 9800 GTX | GeForce GT 640M | |
| Power consumption (TDP) | 140 Watt | 32 Watt |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Supplementary power connectors | 2x 6-pin | |
| Memory type | GDDR3 | DDR3\GDDR5 |
| Maximum RAM amount | 512 MB | 2 GB |
| Display Connectors | 2x DVI, 1x S-Video | No outputs |
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- GeForce 9800 GTX has 337% more power consumption, than GeForce GT 640M.
- GeForce 9800 GTX is connected by PCIe 2.0 x16, and GeForce GT 640M uses PCIe 3.0 x16 interface.
- GeForce 9800 GTX has 510 GB more memory, than GeForce GT 640M.
- GeForce 9800 GTX is used in Desktops, and GeForce GT 640M - in Laptops.
- GeForce 9800 GTX is build with Tesla architecture, and GeForce GT 640M - with Kepler.
- GeForce 9800 GTX is manufactured by 65 nm process technology, and GeForce GT 640M - by 28 nm process technology.
- Memory clock speed of GeForce GT 640M is 700 MHz higher, than GeForce 9800 GTX.
Game benchmarks
| high / 1080p | 0−1 | 0−1 |
| ultra / 1080p | − | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 1−2 | 10−12 |
| medium / 1080p | 0−1 | 2−3 |
| The average gaming FPS of GeForce GT 640M in Assassin's Creed Odyssey is 1000% more, than GeForce 9800 GTX. | ||
| ultra / 1080p | − | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 0−1 | 12−14 |
| medium / 1080p | − | 4−5 |
| low / 768p | 50−55 | 50−55 |
| high / 1080p | 45−50 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| GeForce 9800 GTX and GeForce GT 640M have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 60−65 | 110−120 |
| medium / 768p | 27−30 | 85−90 |
| ultra / 1080p | 7−8 | 35−40 |
| 4K / 2160p | − | 10−11 |
| high / 768p | 16−18 | 55−60 |
| The average gaming FPS of GeForce GT 640M in Counter-Strike: Global Offensive is 164% more, than GeForce 9800 GTX. | ||
| low / 768p | 70−75 | 70−75 |
| ultra / 1080p | 0−1 | 12−14 |
| medium / 1080p | 45−50 | 45−50 |
| GeForce 9800 GTX and GeForce GT 640M have the same average FPS in Cyberpunk 2077. | ||
| low / 768p | 45−50 | 70−75 |
| medium / 768p | 10−11 | 40−45 |
| ultra / 1080p | 0−1 | 18−20 |
| The average gaming FPS of GeForce GT 640M in Dota 2 is 96% more, than GeForce 9800 GTX. | ||
| high / 1080p | − | 2−3 |
| ultra / 1080p | − | 2−3 |
| 4K / 2160p | − | 0−1 |
| low / 720p | 0−1 | 9−10 |
| medium / 1080p | − | 3−4 |
| ultra / 1080p | − | 5−6 |
| QHD / 1440p | − | 1−2 |
| low / 720p | 21−24 | 45−50 |
| medium / 1080p | 0−1 | 7−8 |
| The average gaming FPS of GeForce GT 640M in Fortnite is 113% more, than GeForce 9800 GTX. | ||
| high / 1080p | 0−1 | 2−3 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 0−1 | 14−16 |
| medium / 1080p | 0−1 | 5−6 |
| low / 768p | 18−20 | 40−45 |
| high / 1080p | 0−1 | 3−4 |
| ultra / 1080p | − | 2−3 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 12−14 | 30−35 |
| The average gaming FPS of GeForce GT 640M in Grand Theft Auto V is 131% more, than GeForce 9800 GTX. | ||
| high / 1080p | − | 1−2 |
| ultra / 1080p | − | 0−1 |
| 4K / 2160p | − | 0−1 |
| low / 720p | 0−1 | 2−3 |
| medium / 1080p | − | 2−3 |
| low / 768p | 75−80 | 85−90 |
| high / 1080p | 27−30 | 55−60 |
| The average gaming FPS of GeForce GT 640M in Minecraft is 35% more, than GeForce 9800 GTX. | ||
| high / 1080p | − | 14−16 |
| ultra / 1080p | − | 12−14 |
| low / 720p | 8−9 | 24−27 |
| medium / 1080p | − | 14−16 |
| The average gaming FPS of GeForce GT 640M in PLAYERUNKNOWN'S BATTLEGROUNDS is 212% more, than GeForce 9800 GTX. | ||
| ultra / 1080p | − | 3−4 |
| QHD / 1440p | − | 0−1 |
| low / 720p | 0−1 | 3−4 |
| low / 768p | 0−1 | 7−8 |
| medium / 768p | − | 6−7 |
| high / 1080p | − | 3−4 |
| 4K / 2160p | − | 0−1 |
| low / 768p | 45−50 | 70−75 |
| medium / 768p | 14−16 | 35−40 |
| ultra / 1080p | 0−1 | 12−14 |
| high / 768p | 12−14 | 27−30 |
| The average gaming FPS of GeForce GT 640M in World of Tanks is 84% more, than GeForce 9800 GTX. | ||
Full Specs
| GeForce 9800 GTX | GeForce GT 640M | |
| Architecture | Tesla | Kepler |
| Code name | G92 | N13P-GS |
| Type | Desktop | Laptop |
| Release date | 28 March 2008 | 22 March 2012 |
| Pipelines | 128 | 384 |
| Core clock speed | 1688 MHz | |
| Boost Clock | 645 MHz | |
| Transistor count | 754 million | 1,270 million |
| Manufacturing process technology | 65 nm | 28 nm |
| Texture fill rate | 43.2 billion/sec | |
| Floating-point performance | 432.1 gflops | 480.0 gflops |
| Length | 10.5" (26.7 cm) | |
| Memory bus width | 256 Bit | 128bit |
| Memory clock speed | 1100 MHz | 1800 - 4000 MHz |
| Memory bandwidth | 70.4 GB/s | |
| Shared memory | - | |
| DirectX | 11.1 (10_0) | 12 API |
| Shader Model | 4.0 | 5.1 |
| OpenGL | 2.1 | 4.5 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | N/A | 1.1.126 |
| CUDA | + | + |
| CUDA cores | 128 | 384 |
| Bus support | PCI-E 2.0 | PCI Express 2.0, PCI Express 3.0 |
| Height | 4.376" (11.1 cm) | |
| SLI options | + | |
| Multi monitor support | + | |
| HDMI | Via Adapter | + |
| HDCP | + | |
| Maximum VGA resolution | 2048x1536 | Up to 2048x1536 |
| Audio input for HDMI | S/PDIF | |
| 3D Blu-Ray | + | |
| Bitcoin / BTC (SHA256) | 18 Mh/s | |
| Laptop size | medium sized | |
| Optimus | + | |
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