Radeon R7 240 vs Radeon R9 255 OEM
We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 240 and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R7 240 's Advantages
Lower TDP (30W vs 65W)
Radeon R9 255 OEM 's Advantages
Boost Clock has increased by 19% (930MHz vs 780MHz)
Larger VRAM bandwidth (73.60GB/s vs 28.80GB/s)
192 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R7 240
499
Radeon R9 255 OEM
+90%
952
Graphics Card
Oct 2013
Release Date
Dec 2013
Volcanic Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
730 MHz
Base Clock
900 MHz
780 MHz
Boost Clock
930 MHz
900 MHz
Memory Clock
1150 MHz
Memory
2GB
Memory Size
2GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
128bit
28.80GB/s
Bandwidth
73.60GB/s
Render Config
5
Compute Units
8
320
Shading Units
512
20
TMUs
32
8
ROPs
16
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
Theoretical Performance
6.240 GPixel/s
Pixel Rate
14.88 GPixel/s
15.60 GTexel/s
Texture Rate
29.76 GTexel/s
499.2 GFLOPS
FP32 (float)
952.3 GFLOPS
-
FP64 (double)
59.52 GFLOPS
Board Design
30W
TDP
65W
200 W
Suggested PSU
250 W
1x DVI
1x HDMI 1.4a
1x VGA
Outputs
No outputs
None
Power Connectors
1x 6-pin
Graphics Processor
Oland
GPU Name
Cape Verde
Oland PRO
(215-0837015)
GPU Variant
Cape Verde PRX
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.95 billion
Transistors
1.5 billion
77 mm²
Die Size
123 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
5.1
Shader Model
5.1
