Mobility Radeon HD 4850 X2 vs GeForce GTS 450 |
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Differences What are the advantages of each
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| Is dual GPU | Yes | vs | No | About half of graphics cards are dual GPU | |||
|---|---|---|---|---|---|---|---|
| Significantly higher memory bandwidth | 179.2 GB/s | vs | 22.4 GB/s | 8x higher memory bandwidth | |||
| Higher effective memory clock speed | 2,800 MHz | vs | 1,400 MHz | 2x higher effective memory clock speed | |||
| Significantly more shading units | 1,600 | vs | 144 | 1456 more shading units | |||
| Better floating-point performance | 1,600 GFLOPS | vs | 451 GFLOPS | More than 3.5x better floating-point performance | |||
| Slightly more memory | 2,048 MB | vs | 1,024 MB | 2x more memory | |||
| More texture mapping units | 80 | vs | 24 | 56 more texture mapping units | |||
| Higher pixel rate | 16 GPixel/s | vs | 4.7 GPixel/s | Around 3.5x higher pixel rate | |||
| More render output processors | 32 | vs | 16 | Twice as many render output processors | |||
| Wider memory bus | 512 bit | vs | 128 bit | 4x wider memory bus | |||
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| Higher clock speed | 783 MHz | vs | 500 MHz | More than 55% higher clock speed | |||
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Features Key features of the Mobility Radeon HD 4850 X2 vs GeForce GTS 450
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 | Mobility Radeon HD 4850 X2 | vs | GeForce GTS 450 |
|---|---|---|---|
| GPU brand | ATI | Nvidia | |
| GPU name | M98 | GF116 | |
| Market | Laptop | Desktop | |
| Clock speed | 500 MHz | 783 MHz | |
| Is dual GPU | Yes | No | |
| Reference card | None | None | |
raw performance | |||
| Shading units | 1,600 | 144 | |
| Texture mapping units | 80 | 24 | |
| Render output processors | 32 | 16 | |
| Pixel rate | 16 GPixel/s | 4.7 GPixel/s | |
| Texture rate | 40 GTexel/s | 18.79 GTexel/s | |
| Floating-point performance | 1,600 GFLOPS | 451 GFLOPS | |
memory | Mobility Radeon HD 4850 X2 | vs | GeForce GTS 450 |
|---|---|---|---|
| Memory clock speed | 700 MHz | 700 MHz | |
| Effective memory clock speed | 2,800 MHz | 1,400 MHz | |
| Memory bus | 512 bit | 128 bit | |
| Memory | 2,048 MB | 1,024 MB | |
| Memory type | GDDR5 | DDR3 | |
| Memory bandwidth | 179.2 GB/s | 22.4 GB/s |
