Radeon RX 6500 XT vs Radeon HD 6450 OEM
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6500 XT and 512MB VRAM Radeon HD 6450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6500 XT Advantages
Released 10 years and 11 months late
Boost Clock2815MHz
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (143.9GB/s vs 8.528GB/s)
864 additional rendering cores
Radeon HD 6450 OEM Advantages
Lower TDP (18W vs 107W)
Score
Benchmark
FP32 (float)
Radeon RX 6500 XT
+2782%
5765
Radeon HD 6450 OEM
200
Graphics Card
Jan 2022
Release Date
Feb 2011
Navi II
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 4.0 x4
Bus Interface
PCIe 2.0 x16
Clock Speeds
2310 MHz
Base Clock
-
2815 MHz
Boost Clock
-
2248 MHz
Memory Clock
533 MHz
Memory
4GB
Memory Size
512MB
GDDR6
Memory Type
GDDR3
64bit
Memory Bus
64bit
143.9GB/s
Bandwidth
8.528GB/s
Render Config
16
Compute Units
2
1024
Shading Units
160
64
TMUs
8
32
ROPs
4
16
RT Cores
-
128 KB per Array
L1 Cache
8 KB (per CU)
1024 KB
L2 Cache
128 KB
16 MB
L3 Cache
-
Theoretical Performance
90.08 GPixel/s
Pixel Rate
2.500 GPixel/s
180.2 GTexel/s
Texture Rate
5.000 GTexel/s
11.53 TFLOPS
FP16 (half)
-
5.765 TFLOPS
FP32 (float)
200.0 GFLOPS
360.3 GFLOPS
FP64 (double)
-
Board Design
107W
TDP
18W
300 W
Suggested PSU
200 W
1x HDMI 2.1
1x DisplayPort 1.4a
1x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
1x HDMI 1.3a
1x VGA
1x 6-pin
Power Connectors
None
Graphics Processor
Navi 24
GPU Name
Caicos
Navi 24 XT
(215-135000006)
(215-135000006)
GPU Variant
Junbonator
RDNA 2.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
6 nm
Process Size
40 nm
5.4 billion
Transistors
0.37 billion
107 mm²
Die Size
67 mm²
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
6.6
Shader Model
5.0
