Radeon R9 280 vs Radeon R9 295X2
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 and 4GB VRAM Radeon R9 295X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R9 280 's Advantages
Boost Clock933MHz
Lower TDP (200W vs 500W)
Radeon R9 295X2 's Advantages
More VRAM (4GB vs 3GB)
Larger VRAM bandwidth (320.0GB/s vs 240.0GB/s)
1024 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R9 280
3344
Radeon R9 295X2
+71%
5733
Graphics Card
Mar 2014
Release Date
Apr 2014
Volcanic Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
827 MHz
Base Clock
-
933 MHz
Boost Clock
-
1250 MHz
Memory Clock
1250 MHz
Memory
3GB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
512bit
240.0GB/s
Bandwidth
320.0GB/s
Render Config
28
Compute Units
44
1792
Shading Units
2816
112
TMUs
176
32
ROPs
64
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
1024 KB
Theoretical Performance
29.86 GPixel/s
Pixel Rate
65.15 GPixel/s
104.5 GTexel/s
Texture Rate
179.2 GTexel/s
3.344 TFLOPS
FP32 (float)
5.733 TFLOPS
836.0 GFLOPS
FP64 (double)
716.7 GFLOPS
Board Design
200W
TDP
500W
550 W
Suggested PSU
900 W
1x DVI
2x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x DVI
4x mini-DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
2x 8-pin
Graphics Processor
Tahiti
GPU Name
Vesuvius
Tahiti PRO3
(215-0821330)
GPU Variant
Vesuvius XT
(215-0852022)
GCN 1.0
Architecture
GCN 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
4.313 billion
Transistors
6.2 billion
352 mm²
Die Size
438 mm²
Graphics Features
12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
1.2
OpenCL
2.0
1.2
Vulkan
1.2
5.1
Shader Model
6.3
