GPUBoss Review Our evaluation of R9 270X vs R7 250

Gaming

Real world tests using the latest 3D games

crysis: warhead (2013), Crysis: Warhead (2012), Batman: Arkham City and 6 more

Benchmarks

Synthetic tests to measure overall performance

Passmark, 3DMark 11 Graphics, 3DMark Vantage Graphics and 3DMark06

Compute Performance

General computing tests executed on the GPU

Passmark Direct Compute

Noise and Power

How loud and hot does the card run idle and under load

TDP

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Radeon R9 270X

Reasons to consider the
Sapphire Radeon R9 270X

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Significantly better passmark score 4,504 vs 1,393 Around 3.2x better passmark score
Significantly better 3DMark vantage graphics score 28,000 vs 10,708 More than 2.5x better 3DMark vantage graphics score
Higher clock speed 1,100 MHz vs 1,000 MHz 10% higher clock speed
Better 3DMark 11 graphics score 8,520 vs 2,775 More than 3x better 3DMark 11 graphics score
Better 3DMark06 score 23,610 vs 16,215 More than 45% better 3DMark06 score
Better floating-point performance 2,816 GFLOPS vs 768 GFLOPS Around 3.8x better floating-point performance
Higher effective memory clock speed 6,000 MHz vs 4,600 MHz More than 30% higher effective memory clock speed
Significantly higher pixel rate 35.2 GPixel/s vs 8 GPixel/s Around 4.5x higher pixel rate
More memory 2,048 MB vs 1,024 MB 2x more memory
Higher texture rate 88 GTexel/s vs 24 GTexel/s Around 3.8x higher texture rate
Higher turbo clock speed 1,150 MHz vs 1,050 MHz Around 10% higher turbo clock speed
More shading units 1,280 vs 384 896 more shading units
Significantly higher BioShock infinite framerate 55.1 fps vs 20.3 fps Around 2.8x higher BioShock infinite framerate
More render output processors 32 vs 16 Twice as many render output processors
More texture mapping units 80 vs 24 56 more texture mapping units
More compute units 20 vs 6 14 more compute units
Significantly higher memory clock speed 1,500 MHz vs 1,150 MHz More than 30% higher memory clock speed
Better passmark direct compute score 2,370 vs 801 Around 3x better passmark direct compute score
Wider memory bus 256 bit vs 128 bit 2x wider memory bus
Higher crysis 3 framerate 24.5 fps vs 10.6 fps More than 2.2x higher crysis 3 framerate
Front view of Radeon R7 250

Reasons to consider the
Generic Radeon R7 250

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Significantly lower TDP 65W vs 180W 2.8x lower TDP

Benchmarks Real world tests of Radeon R9 270X vs R7 250

Passmark Industry standard benchmark for overall graphics card performance

We don't use 3DMark to draw GPU performance conclusions but it does make for a great optimization target.
Radeon R7 250 | by Anand-Lal-Shimpi (Jun, 2013)

3DMark 11 Graphics Industry standard benchmark that tests DirectX 11 GPU performance

3D Mark 2011 is a nice start to benchmarking as it gives pretty reliable results between runs.
Radeon R7 250 | by Josh-Walrath (Aug, 2013)

3DMark Vantage Graphics Industry standard benchmark that tests DirectX 10 GPU performance

Moving on, we have our 3DMark Vantage texture fillrate test, which does for texels and texture mapping units what the previous test does for ROPs.
Radeon R7 250 | by Anand-Lal-Shimpi (Jun, 2013)

BioShock Infinite 1920 x 1080 - Ultra preset + DX11 (DDOF)

Radeon R9 270X
55.1 fps
Radeon R7 250
20.3 fps
The performance results show that dual graphics does make the Kaveri APU run games at 1080P such as Bioshock Infinite and Tomb Raider which otherwise isn’t possible (atleast on high settings configuration) but that means users would have to spend $59 – $89 more on these graphics cards for a little performance upgrade and even that in a few titles since AMD CrossFire isn’t great on all gaming titles.
Radeon R7 250 | by hassan-mujtaba (Jan, 2014)

Crysis 3 1920 x 1080 - Very High preset + 16xAF + 2xSMAA

Radeon R9 270X
24.5 fps
Radeon R7 250
10.6 fps
Only in a handful of setups can we even run Crysis 3 at its highest (Very High) settings, and the situation isn't too much better for entry-level GPUs at its lowest quality setting.
Radeon R7 250 | by Anand-Lal-Shimpi (Jun, 2013)

Passmark Direct Compute Measures performance of general-purpose computing using Microsoft DirectCompute

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