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GPU Comparison
AMD Radeon R9 285X vs AMD Radeon HD 6450
AMD Radeon R9 285X vs AMD Radeon HD 6450
VS
AMD Radeon R9 285X
AMD Radeon HD 6450
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 285X 's Advantages
Larger VRAM bandwidth (264.0GB/s vs 25.60GB/s)
1888 additional rendering cores
AMD Radeon HD 6450 's Advantages
Lower TDP (18W vs 200W)
Score
Benchmark
FP32 (float)
Radeon R9 285X
+1952%
4.104 TFLOPS
Radeon HD 6450
0.2 TFLOPS
Radeon R9 285X
VS
Radeon HD 6450
Graphics Card
Unknown
Release Date
Apr 2011
Volcanic Islands
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1375 MHz
Memory Clock
800 MHz
Memory
3GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
64bit
264.0GB/s
Bandwidth
25.60GB/s
Render Config
-
SM Count
-
32
Compute Units
2
2048
Shading Units
160
128
TMUs
8
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
768 KB
L2 Cache
128 KB
Theoretical Performance
32.06 GPixel/s
Pixel Rate
2.500 GPixel/s
128.3 GTexel/s
Texture Rate
5.000 GTexel/s
-
FP16 (half)
-
4.104 TFLOPS
FP32 (float)
200.0 GFLOPS
-
FP64 (double)
-
Graphics Processor
Tonga
GPU Name
Caicos
Tonga XT (215-0851313)
GPU Variant
Caicos PRO
GCN 3.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
5 billion
Transistors
0.37 billion
366 mm²
Die Size
67 mm²
Board Design
200W
TDP
18W
550 W
Suggested PSU
200 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.0
OpenCL
1.2
1.2
Vulkan
N/A
-
CUDA
-
6.3
Shader Model
5.0
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