Home GPU Comparison AMD Radeon RX 7800 vs AMD Radeon HD 8450 OEM

AMD Radeon RX 7800 vs AMD Radeon HD 8450 OEM

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 and 1024MB VRAM Radeon HD 8450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 's Advantages
Released 10 years late
Boost Clock2800MHz
More VRAM (16GB vs 1024GB)
Larger VRAM bandwidth (576.0GB/s vs 10.67GB/s)
3680 additional rendering cores
AMD Radeon HD 8450 OEM 's Advantages
Lower TDP (18W vs 300W)

Score

Benchmark

FP32 (float)
Radeon RX 7800 +18560%
37.32 TFLOPS
Radeon HD 8450 OEM
0.2 TFLOPS
VS

Graphics Card

Jan 2023
Release Date
Jan 2013
Navi III
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

1800 MHz
Base Clock
-
2800 MHz
Boost Clock
-
2250 MHz
Memory Clock
667 MHz

Memory

16GB
Memory Size
1024MB
GDDR6
Memory Type
DDR3
256bit
Memory Bus
64bit
576.0GB/s
Bandwidth
10.67GB/s

Render Config

60
Compute Units
2
-
-
-
3840
Shading Units
160
240
TMUs
8
128
ROPs
4
-
-
-
60
RT Cores
-
128 KB per Array
L1 Cache
8 KB (per CU)
4 MB
L2 Cache
128 KB
64 MB
L3 Cache
-

Theoretical Performance

358.4 GPixel/s
Pixel Rate
2.500 GPixel/s
672.0 GTexel/s
Texture Rate
5.000 GTexel/s
86.02 TFLOPS
FP16 (half)
-
43.01 TFLOPS
FP32 (float)
200.0 GFLOPS
1344 GFLOPS
FP64 (double)
-

Board Design

300W
TDP
18W
700 W
Suggested PSU
200 W
1x HDMI 2.1a 3x DisplayPort 2.1
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
2x 8-pin
Power Connectors
None

Graphics Processor

Navi 32
GPU Name
Caicos
Navi 32 XT
GPU Variant
Caicos PRO-L
RDNA 3.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
5 nm
Process Size
40 nm
Unknown
Transistors
0.37 billion
346 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
-
-
-
6.7
Shader Model
5.0

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