AMD Radeon R9 280X vs AMD Radeon R7 450 OEM
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X and 2GB VRAM Radeon R7 450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 280X 's Advantages
Boost Clock1000MHz
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (288.0GB/s vs 72.00GB/s)
1536 additional rendering cores
AMD Radeon R7 450 OEM 's Advantages
Released 2 years and 8 months late
Lower TDP (65W vs 250W)
Score
Benchmark
FP32 (float)
Radeon R9 280X
+332%
4.096 TFLOPS
Radeon R7 450 OEM
0.947 TFLOPS
Graphics Card
Oct 2013
Release Date
Jun 2016
Volcanic Islands
Generation
Arctic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
850 MHz
Base Clock
-
1000 MHz
Boost Clock
-
1500 MHz
Memory Clock
1125 MHz
Memory
3GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
128bit
288.0GB/s
Bandwidth
72.00GB/s
Render Config
32
Compute Units
8
-
-
-
2048
Shading Units
512
128
TMUs
32
32
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
32.00 GPixel/s
Pixel Rate
14.80 GPixel/s
128.0 GTexel/s
Texture Rate
29.60 GTexel/s
-
-
-
4.096 TFLOPS
FP32 (float)
947.2 GFLOPS
1024 GFLOPS
FP64 (double)
59.20 GFLOPS
Board Design
250W
TDP
65W
600 W
Suggested PSU
250 W
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
Tahiti
GPU Name
Cape Verde
Tahiti XTL
(215-0821065)
GPU Variant
Cape Verde PRO2
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
4.313 billion
Transistors
1.5 billion
352 mm²
Die Size
123 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
2.1 (1.2)
1.2
Vulkan
1.2.170
-
-
-
5.1
Shader Model
6.5 (5.1)
