Radeon HD 6490M Mac vs GeForce GT 650M Mac |
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Differences What are the advantages of each
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| GPUBoss is not aware of any important advantages of the AMD Radeon HD 6490M Mac vs the Nvidia GeForce GT 650M Mac. | |||||||
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| Higher clock speed | 900 MHz | vs | 750 MHz | 20% higher clock speed | |||
|---|---|---|---|---|---|---|---|
| Higher effective memory clock speed | 5,016 MHz | vs | 3,176 MHz | Around 60% higher effective memory clock speed | |||
| Higher memory bandwidth | 80.3 GB/s | vs | 25.41 GB/s | Around 3.2x higher memory bandwidth | |||
| Higher texture rate | 28.8 GTexel/s | vs | 6 GTexel/s | More than 4.8x higher texture rate | |||
| Significantly higher memory clock speed | 1,254 MHz | vs | 794 MHz | Around 60% higher memory clock speed | |||
| Slightly better floating-point performance | 691.2 GFLOPS | vs | 240 GFLOPS | Around 3x better floating-point performance | |||
| More render output processors | 16 | vs | 4 | 12 more render output processors | |||
| More texture mapping units | 32 | vs | 8 | 24 more texture mapping units | |||
| Wider memory bus | 128 bit | vs | 64 bit | 2x wider memory bus | |||
| More shading units | 384 | vs | 160 | 224 more shading units | |||
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Features Key features of the Radeon HD 6490M Mac vs GeForce GT 650M 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 650M Mac |
|---|---|---|---|
| GPU brand | AMD | Nvidia | |
| GPU name | Seymour | GK107 | |
| Market | Laptop | Laptop | |
| Clock speed | 750 MHz | 900 MHz | |
| Is dual GPU | No | No | |
| Reference card | None | None | |
raw performance | |||
| Shading units | 160 | 384 | |
| Texture mapping units | 8 | 32 | |
| Render output processors | 4 | 16 | |
| Pixel rate | 3 GPixel/s | 7.2 GPixel/s | |
| Texture rate | 6 GTexel/s | 28.8 GTexel/s | |
| Floating-point performance | 240 GFLOPS | 691.2 GFLOPS | |
memory | Radeon HD 6490M Mac | vs | GeForce GT 650M Mac |
|---|---|---|---|
| Memory clock speed | 794 MHz | 1,254 MHz | |
| Effective memory clock speed | 3,176 MHz | 5,016 MHz | |
| Memory bus | 64 bit | 128 bit | |
| Memory | 256 MB | 512 MB | |
| Memory type | GDDR5 | GDDR5 | |
| Memory bandwidth | 25.41 GB/s | 80.3 GB/s |
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