FireStream 9250 vs Radeon R9 255 OEM
We compared two Desktop platform GPUs: 1024MB VRAM FireStream 9250 and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
FireStream 9250 's Advantages
288 additional rendering cores
Radeon R9 255 OEM 's Advantages
Released 5 years and 6 months late
Boost Clock930MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (73.60GB/s vs 63.55GB/s)
Lower TDP (65W vs 150W)
Score
Benchmark
FP32 (float)
FireStream 9250
+5%
1000
Radeon R9 255 OEM
952
Graphics Card
Jun 2008
Release Date
Dec 2013
FireStream
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
900 MHz
-
Boost Clock
930 MHz
993 MHz
Memory Clock
1150 MHz
Memory
1024MB
Memory Size
2GB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
128bit
63.55GB/s
Bandwidth
73.60GB/s
Render Config
10
Compute Units
8
800
Shading Units
512
40
TMUs
32
16
ROPs
16
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
Theoretical Performance
10.00 GPixel/s
Pixel Rate
14.88 GPixel/s
25.00 GTexel/s
Texture Rate
29.76 GTexel/s
1000 GFLOPS
FP32 (float)
952.3 GFLOPS
200.0 GFLOPS
FP64 (double)
59.52 GFLOPS
Board Design
150W
TDP
65W
450 W
Suggested PSU
250 W
1x DVI
Outputs
No outputs
1x 6-pin
Power Connectors
1x 6-pin
Graphics Processor
RV770
GPU Name
Cape Verde
RV770 PRO
GPU Variant
Cape Verde PRX
TeraScale
Architecture
GCN 1.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.956 billion
Transistors
1.5 billion
256 mm²
Die Size
123 mm²
Graphics Features
10.1 (10_1)
DirectX
12 (11_1)
3.3
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
4.1
Shader Model
5.1
