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GPU Comparison
AMD Radeon RX 7900 XT vs AMD Radeon HD 7450 OEM
AMD Radeon RX 7900 XT vs AMD Radeon HD 7450 OEM
VS
AMD Radeon RX 7900 XT
AMD Radeon HD 7450 OEM
We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 512MB VRAM Radeon HD 7450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 7900 XT 's Advantages
Released 10 years and 10 months late
Boost Clock2394MHz
Larger VRAM bandwidth (800.0GB/s vs 8.528GB/s)
5216 additional rendering cores
AMD Radeon HD 7450 OEM 's Advantages
Lower TDP (18W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 7900 XT
+25640%
51.48 TFLOPS
Radeon HD 7450 OEM
0.2 TFLOPS
Radeon RX 7900 XT
VS
Radeon HD 7450 OEM
Graphics Card
Nov 2022
Release Date
Jan 2012
Navi III
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1387 MHz
Base Clock
-
2394 MHz
Boost Clock
-
2500 MHz
Memory Clock
533 MHz
Memory
20GB
Memory Size
512MB
GDDR6
Memory Type
GDDR3
320bit
Memory Bus
64bit
800.0GB/s
Bandwidth
8.528GB/s
Render Config
-
SM Count
-
84
Compute Units
2
5376
Shading Units
160
336
TMUs
8
192
ROPs
4
-
Tensor Cores
-
84
RT Cores
-
256 KB per Array
L1 Cache
8 KB (per CU)
6 MB
L2 Cache
128 KB
Theoretical Performance
459.6 GPixel/s
Pixel Rate
2.500 GPixel/s
804.4 GTexel/s
Texture Rate
5.000 GTexel/s
103.0 TFLOPS
FP16 (half)
-
51.48 TFLOPS
FP32 (float)
200.0 GFLOPS
1.609 TFLOPS
FP64 (double)
-
Graphics Processor
Navi 31
GPU Name
Caicos
Navi 31 XT (215-145000156)
GPU Variant
Caimour
RDNA 3.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
5 nm
Process Size
40 nm
57.7 billion
Transistors
0.37 billion
529 mm²
Die Size
67 mm²
Board Design
300W
TDP
18W
700 W
Suggested PSU
200 W
1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C
Outputs
1x DVI 1x HDMI 1.3a
2x 8-pin
Power Connectors
None
Graphics Features
12 Ultimate (12_2)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.2
OpenCL
1.2
1.3
Vulkan
N/A
-
CUDA
-
6.7
Shader Model
5.0
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