Radeon RX 7900 XT vs Radeon HD 3450 AGP
We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 512MB VRAM Radeon HD 3450 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 7900 XT 's Advantages
Released 14 years and 10 months late
Boost Clock2394MHz
More VRAM (20GB vs 512GB)
Larger VRAM bandwidth (800.0GB/s vs 8.000GB/s)
5336 additional rendering cores
Radeon HD 3450 AGP 's Advantages
Lower TDP (25W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 7900 XT
+107150%
51480
Radeon HD 3450 AGP
48
Graphics Card
Nov 2022
Release Date
Jan 2008
Navi III
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
AGP 8x
Clock Speeds
1387 MHz
Base Clock
-
2394 MHz
Boost Clock
-
2500 MHz
Memory Clock
500 MHz
Memory
20GB
Memory Size
512MB
GDDR6
Memory Type
DDR2
320bit
Memory Bus
64bit
800.0GB/s
Bandwidth
8.000GB/s
Render Config
84
Compute Units
2
5376
Shading Units
40
336
TMUs
4
192
ROPs
4
84
RT Cores
-
256 KB per Array
L1 Cache
-
6 MB
L2 Cache
64 KB
80 MB
L3 Cache
-
Theoretical Performance
459.6 GPixel/s
Pixel Rate
2.400 GPixel/s
804.4 GTexel/s
Texture Rate
2.400 GTexel/s
103.0 TFLOPS
FP16 (half)
-
51.48 TFLOPS
FP32 (float)
48.00 GFLOPS
1.609 TFLOPS
FP64 (double)
-
Board Design
300W
TDP
25W
700 W
Suggested PSU
200 W
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
Outputs
2x DVI
2x 8-pin
Power Connectors
1x Molex
Graphics Processor
Navi 31
GPU Name
RV620
Navi 31 XT
(215-145000156)
GPU Variant
RV620 LE
RDNA 3.0
Architecture
TeraScale
TSMC
Foundry
TSMC
5 nm
Process Size
55 nm
57.7 billion
Transistors
0.181 billion
529 mm²
Die Size
67 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
2.2
OpenCL
N/A
1.3
Vulkan
N/A
6.7
Shader Model
4.1
