Radeon RX 6800 XT vs Radeon HD 3450 X2
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 512MB VRAM Radeon HD 3450 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6800 XT 's Advantages
Released 12 years and 10 months late
Boost Clock2250MHz
More VRAM (16GB vs 512GB)
Larger VRAM bandwidth (512.0GB/s vs 8.000GB/s)
4568 additional rendering cores
Radeon HD 3450 X2 's Advantages
Lower TDP (50W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 6800 XT
+43108%
20740
Radeon HD 3450 X2
48
Graphics Card
Oct 2020
Release Date
Dec 2007
Navi II
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1825 MHz
Base Clock
-
2250 MHz
Boost Clock
-
2000 MHz
Memory Clock
500 MHz
Memory
16GB
Memory Size
512MB
GDDR6
Memory Type
DDR2
256bit
Memory Bus
64bit
512.0GB/s
Bandwidth
8.000GB/s
Render Config
72
Compute Units
2
4608
Shading Units
40
288
TMUs
4
128
ROPs
4
72
RT Cores
-
128 KB per Array
L1 Cache
-
4 MB
L2 Cache
64 KB
128 MB
L3 Cache
-
Theoretical Performance
288.0 GPixel/s
Pixel Rate
2.400 GPixel/s
648.0 GTexel/s
Texture Rate
2.400 GTexel/s
41.47 TFLOPS
FP16 (half)
-
20.74 TFLOPS
FP32 (float)
48.00 GFLOPS
1296 GFLOPS
FP64 (double)
-
Board Design
300W
TDP
50W
700 W
Suggested PSU
250 W
1x HDMI 2.1
2x DisplayPort 1.4a
1x USB Type-C
Outputs
2x DMS-59
2x 8-pin
Power Connectors
None
Graphics Processor
Navi 21
GPU Name
RV620
Navi 21 XT
(215-121000177)
GPU Variant
RV620 LE
RDNA 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
7 nm
Process Size
55 nm
26.8 billion
Transistors
0.181 billion
520 mm²
Die Size
67 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
2.1
OpenCL
N/A
1.3
Vulkan
N/A
6.5
Shader Model
4.1
