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by hassan-mujtaba (Jun, 2013)net got hold of two of the new graphic cards featuring the latest GK208 core which has new Cuda 3.5 capabilities but is only suited for the low end budget audience.
by hassan-mujtaba (Jun, 2013)Alot of speculation built up around the new card that whether they would power the high-end or low-end lineup of next generation cards and it looks like the GK208 was just a low end chip with high-end compute capabilities of the GK 110 core that would end up in the new GT 640 and GT 630 graphic cards.
Benchmarks Real world tests of the GeForce GT 640 Rebrand
3DMark 11 Graphics Industry standard benchmark that tests DirectX 11 GPU performance
3DMark Vantage Graphics Industry standard benchmark that tests DirectX 10 GPU performance
3DMark06 Industry standard benchmark that tests DirectX 9 GPU performance
CLBenchmark Raytrace Measures compute performance using OpenCL to do raytracing
In The News From around the web
| 29 Jun |
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net got hold of two of the new graphic cards featuring the latest GK208 core which has new Cuda 3.5 capabilities but is only suited for the low end budget audience.
Core clock is maintained at 1046 MHz while the 2 GB GDDR5 memory runs across a 64-bit memory interface at frequency of 5000 MHz.
| 25 Apr |
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On a positive note however, this launch means that retail GK107 desktop cards – particularly a retail version of the GDDR5 + GK107 based GT 640 – can’t be too far away; we’d speculate a few months at the most.
As with the laptop market we’ve reached a point where it’s nearly impossible to tell which video card a product actually uses based on computer specs alone, and that’s worrisome.
Specifications Full list of technical specs
gpu
| GPU brand | Nvidia |
|---|---|
| GPU name | GF116 |
| Market | Desktop |
| Clock speed | 720 MHz |
| Is dual GPU | No |
| Reference card | Nvidia GeForce GT 640 Rebrand GeForce GT 640 OEM Rebrand 720 MHz 1.5 GB |
raw performance
| Shading units | 144 |
|---|---|
| Texture mapping units | 24 |
| Render output processors | 24 |
| Pixel rate | 4.32 GPixel/s |
| Texture rate | 17.28 GTexel/s |
| Floating-point performance | 414.7 GFLOPS |
memory
| Memory clock speed | 800 MHz |
|---|---|
| Effective memory clock speed | 1,600 MHz |
| Memory bus | 192 bit |
| Memory | 3,072 MB |
| Memory type | DDR3 |
| Memory bandwidth | 38.4 GB/s |
noise and power
| TDP | 75W |
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Competitors
 | Sapphire Radeon R9 270X
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 | Generic Radeon R9 280X
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 | Nvidia GeForce 840M
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 | AMD Radeon R7 260X
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 | Nvidia GeForce GT 1030
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 | Nvidia GeForce GT 630 PCIe x8
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Other GeForce GT 640 Rebrands
 | Nvidia GeForce GT 640 Rebrand GeForce GT 640 OEM Rebrand
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