Radeon HD 6490M Mac vs GeForce GT 330M Mac |
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Differences What are the advantages of each
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| Higher clock speed | 750 MHz | vs | 500 MHz | 50% higher clock speed | |||
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| Higher effective memory clock speed | 3,176 MHz | vs | 1,580 MHz | More than 2x higher effective memory clock speed | |||
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| Wider memory bus | 128 bit | vs | 64 bit | 2x wider memory bus | |||
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Features Key features of the Radeon HD 6490M Mac vs GeForce GT 330M Mac
memory bandwidth Rate at which data can be read from or stored in onboard memory
pixel rate Number of pixels a graphics card can render to the screen every second
texture rate Speed at which a graphics card can perform texture mapping
floating point performance How fast the gpu can crunch numbers
shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading
texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes
Specifications Full list of technical specs
gpu | Radeon HD 6490M Mac | vs | GeForce GT 330M Mac |
|---|---|---|---|
| GPU brand | AMD | Nvidia | |
| GPU name | Seymour | GT216 | |
| Market | Laptop | Laptop | |
| Clock speed | 750 MHz | 500 MHz | |
| Is dual GPU | No | No | |
| Reference card | None | None | |
raw performance | |||
| Shading units | 160 | 48 | |
| Texture mapping units | 8 | 16 | |
| Render output processors | 4 | 8 | |
| Pixel rate | 3 GPixel/s | 4 GPixel/s | |
| Texture rate | 6 GTexel/s | 8 GTexel/s | |
| Floating-point performance | 240 GFLOPS | 105.6 GFLOPS | |
memory | Radeon HD 6490M Mac | vs | GeForce GT 330M Mac |
|---|---|---|---|
| Memory clock speed | 794 MHz | 790 MHz | |
| Effective memory clock speed | 3,176 MHz | 1,580 MHz | |
| Memory bus | 64 bit | 128 bit | |
| Memory | 256 MB | 512 MB | |
| Memory type | GDDR5 | GDDR3 | |
| Memory bandwidth | 25.41 GB/s | 25.28 GB/s |
