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GPU Comparison
AMD Radeon RX 6900 XTX vs ATI Radeon HD 5450
AMD Radeon RX 6900 XTX vs ATI Radeon HD 5450
VS
AMD Radeon RX 6900 XTX
ATI Radeon HD 5450
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 512MB VRAM Radeon HD 5450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6900 XTX 's Advantages
Boost Clock2435MHz
Larger VRAM bandwidth (576.0GB/s vs 6.400GB/s)
5040 additional rendering cores
ATI Radeon HD 5450 's Advantages
Lower TDP (19W vs 330W)
Score
Benchmark
FP32 (float)
Radeon RX 6900 XTX
+23871%
24.93 TFLOPS
Radeon HD 5450
0.104 TFLOPS
Radeon RX 6900 XTX
VS
Radeon HD 5450
Graphics Card
Unknown
Release Date
Feb 2010
Navi II
Generation
Evergreen
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
2075 MHz
Base Clock
-
2435 MHz
Boost Clock
-
2250 MHz
Memory Clock
400 MHz
Memory
16GB
Memory Size
512MB
GDDR6
Memory Type
DDR2
256bit
Memory Bus
64bit
576.0GB/s
Bandwidth
6.400GB/s
Render Config
-
SM Count
-
80
Compute Units
2
5120
Shading Units
80
320
TMUs
8
128
ROPs
4
-
Tensor Cores
-
80
RT Cores
-
128 KB per Array
L1 Cache
8 KB (per CU)
4 MB
L2 Cache
128 KB
Theoretical Performance
311.7 GPixel/s
Pixel Rate
2.600 GPixel/s
779.2 GTexel/s
Texture Rate
5.200 GTexel/s
49.87 TFLOPS
FP16 (half)
-
24.93 TFLOPS
FP32 (float)
104.0 GFLOPS
1.558 TFLOPS
FP64 (double)
-
Graphics Processor
Navi 21
GPU Name
Cedar
Navi 21 XTXH (215-121000247)
GPU Variant
Cedar PRO
RDNA 2.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
7 nm
Process Size
40 nm
26.8 billion
Transistors
0.292 billion
520 mm²
Die Size
59 mm²
Board Design
330W
TDP
19W
700 W
Suggested PSU
200 W
1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
2x 8-pin
Power Connectors
None
Graphics Features
12 Ultimate (12_2)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.3
Vulkan
N/A
-
CUDA
-
6.5
Shader Model
5.0
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