AMD R9 M90X VS R9 270X?

[Kyan31]

Who wins overall? Generic AMD R9 M290X 950mhz with boost clock of 1050mhz (Laptop) or Gigabyte Windforce R9 270X at 1150mhz and mantle support (Desktop)? Thank you!

 

[Dicehunter]

Who wins overall? Generic AMD R9 M290X 950mhz with boost clock of 1050mhz (Laptop) or Gigabyte Windforce R9 270X at 1150mhz and mantle support (Desktop)? Thank you!

Tricky question ^_^

 

[funt]

Who wins overall? Generic AMD R9 M290X 950mhz with boost clock of 1050mhz (Laptop) or Gigabyte Windforce R9 270X at 1150mhz and mantle support (Desktop)? Thank you!

According to GPU Boss the 270x is the better card of the two. How reliable that is, I can't say.

Significantly higher clock speed
1,050 MHz vs 850 MHz Around 25% higher clock speed

Significantly higher turbo clock speed
1,100 MHz vs 900 MHz More than 20% higher turbo clock speed

Higher effective memory clock speed
5,600 MHz vs 4,800 MHz More than 15% higher effective memory clock speed

Better floating-point performance
2,688 GFLOPS vs 2,176 GFLOPS Around 25% better floating-point performance

Higher pixel rate
33.6 GPixel/s vs 27.2 GPixel/s Around 25% higher pixel rate

Slightly higher texture rate
84 GTexel/s vs 68 GTexel/s Around 25% higher texture rate

Higher memory clock speed
1,400 MHz vs 1,200 MHz More than 15% higher memory clock speed

 

[alex_123_fra]

The desktop 270x is better. By how much varies depending on the CPU they are paired with and whether running benchmarks or games.

As a ballpark an M290x will score around 7k in 3DMark 11 paired with a Haswell i7. A 270X can score 8.5-10k in the same bench depending on CPU. Graphics score-wise the M290X is at around 7k again while the 270X at 9k-ish.

 

[Meaker]

Both the same chip with the desktop chip having higher clocks.