Radeon R9 255 

Released December, 2013
  • 900 MHz
  • 2 GB GDDR5

The GPU core clock is maintained at 1000 MHz and the boost clock is configured at 1050 MHz.
by hassan-mujtaba (Oct, 2013)
In order to support the ability for NVIDIA’s Kepler architecture to launch additional workloads a new Grid Management Unit was built that handles the incoming workloads from the host system as well as the algorithmically created workloads and balances accordingly.
by Ryan-Shrout (May, 2012)

GPUBoss Review Our evaluation of the Radeon R9 255 among Desktop GPUs

Gaming

Radeon R9 255
n.d.
Battlefield 3, Battlefield 4, Bioshock Infinite and 21 more

Graphics

Radeon R9 255
6.5
T-Rex, Manhattan, Cloud Gate Factor, Sky Diver Factor and 1 more

Computing

Radeon R9 255
n.d.
Face Detection, Ocean Surface Simulation and 3 more

Performance per Watt

Radeon R9 255
8.4
Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more

Value

Radeon R9 255
n.d.
Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more

Noise and Power

Radeon R9 255
9.6
TDP, Idle Power Consumption, Load Power Consumption and 2 more

7

Overall Score

Radeon R9 255
7.0

Benchmarks Real world tests of the Radeon R9 255

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Radeon R9 255
1,722

Fire Strike Factor Data courtesy FutureMark

Radeon R9 255
18.94

Sky Diver Factor Data courtesy FutureMark

Radeon R9 255
187.91

Cloud Gate Factor Data courtesy FutureMark

Radeon R9 255
12.28

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

Radeon R9 255
1,044

In The News From around the web

We expect to see official details of the R9 300-series of products of which there have been many leaks as well as the final details of the AMD Fury and Fury X products based on the new Fiji GPU.
The experience was smooth though of course there were no indications of frame rate, etc. while it was going on.
7
Feb

AMD R9 300-Series Possibly Coming Soon

by Scott Michaud |
www.pcper.com
The current rumors claim that Fiji XT will have 4096 graphics cores that are fed by a high-bandwidth, stacked memory architecture, which is supposedly rated at 640 GB/s (versus 224 GB/s of the GeForce GTX 980).
That said, they also have cache and other methods to reduce this dependency, but let's just say that, if you offer a graphics vendor a free, order-of-magnitude speed-up in memory bandwidth - you will have friend, and possibly one for life.
29
Sep

AMD Releases Catalyst 14.9 Drivers

by Jarred Walton |
www.anandtech.com
There's no mention made of any of the upcoming games, so it looks like we'll mostly be looking for hotfixes to address any issues with yet-to-be-released games.
The drivers are available at the usual place, and support is specifically listed for the R9/R7/R5 series of desktop and mobile GPUs, along with the earlier HD 5000/6000/7000/8000 series of desktop and mobile GPUs. APU support is also included for the R7/R6/R5/R3 products and all APUs with HD 6000D/G or newer graphics (which basically means all of AMD's APUs). In other words, if you have a Direct3D 11 enabled GPU from AMD, the drivers should be available (though there are likely mobile).

Specifications Full list of technical specs

gpu

GPU brand AMD
GPU name Cape Verde
Market Desktop
Clock speed 900 MHz
Turbo clock speed 930 MHz
Is dual GPU No
Reference card None

raw performance

Shading units 512
Texture mapping units 32
Render output processors 16
Compute units 8
Pixel rate 14.88 GPixel/s
Texture rate 29.76 GTexel/s
Floating-point performance 952.3 GFLOPS

memory

Memory clock speed 1,150 MHz
Effective memory clock speed 4,600 MHz
Memory bus 128 bit
Memory 2,048 MB
Memory type GDDR5
Memory bandwidth 73.6 GB/s

noise and power

TDP 65W
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