Radeon HD 6750M Mac vs 6490M Mac |
Released April, 2011
AMD Radeon HD 6750M Mac
- 598 MHz
- 512 MB GDDR5
by Shaikh-Rafia (Jan, 2014)The very much famous Michael Kukielka has released his Apple Mac Pro benchmark video.
VS
Released May, 2011
AMD Radeon HD 6490M Mac
- 750 MHz
- 256 MB GDDR5
by Trace-Hagan (May, 2013)The range is powered by Kepler from bottom to top and brings great performance to mobile platforms.
Cast your vote Do you agree or disagree with GPUBoss?
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Differences What are the advantages of each
| |||||||
| Higher memory bandwidth | 50.8 GB/s | vs | 25.41 GB/s | Around 2x higher memory bandwidth | |||
|---|---|---|---|---|---|---|---|
| Better floating-point performance | 574.1 GFLOPS | vs | 240 GFLOPS | Around 2.5x better floating-point performance | |||
| More shading units | 480 | vs | 160 | Three times as many shading units | |||
| Slightly higher texture rate | 14.35 GTexel/s | vs | 6 GTexel/s | Around 2.5x higher texture rate | |||
| Wider memory bus | 128 bit | vs | 64 bit | 2x wider memory bus | |||
| More texture mapping units | 24 | vs | 8 | Three times as many texture mapping units | |||
| More compute units | 6 | vs | 2 | Three times as many compute units | |||
| Slightly more render output processors | 8 | vs | 4 | Twice as many render output processors | |||
| |||||||
| Higher clock speed | 750 MHz | vs | 598 MHz | More than 25% higher clock speed | |||
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Features Key features of the Radeon HD 6750M Mac vs 6490M 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 6750M Mac | vs | 6490M Mac |
|---|---|---|---|
| GPU brand | AMD | AMD | |
| GPU name | Whistler | Seymour | |
| Market | Laptop | Laptop | |
| Clock speed | 598 MHz | 750 MHz | |
| Is dual GPU | No | No | |
| Reference card | None | None | |
raw performance | |||
| Shading units | 480 | 160 | |
| Texture mapping units | 24 | 8 | |
| Render output processors | 8 | 4 | |
| Compute units | 6 | 2 | |
| Pixel rate | 4.78 GPixel/s | 3 GPixel/s | |
| Texture rate | 14.35 GTexel/s | 6 GTexel/s | |
| Floating-point performance | 574.1 GFLOPS | 240 GFLOPS | |
memory | Radeon HD 6750M Mac | vs | 6490M Mac |
|---|---|---|---|
| Memory clock speed | 794 MHz | 794 MHz | |
| Effective memory clock speed | 3,176 MHz | 3,176 MHz | |
| Memory bus | 128 bit | 64 bit | |
| Memory | 512 MB | 256 MB | |
| Memory type | GDDR5 | GDDR5 | |
| Memory bandwidth | 50.8 GB/s | 25.41 GB/s |
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