AMD Radeon RX 8800 XT vs NVIDIA GeForce GT 620
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 8800 XT and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 8800 XT 's Advantages
Boost Clock2430MHz
More VRAM (16GB vs 1024GB)
Larger VRAM bandwidth (624.1GB/s vs 14.40GB/s)
4000 additional rendering cores
NVIDIA GeForce GT 620 's Advantages
Lower TDP (49W vs 220W)
Score
Benchmark
FP32 (float)
Radeon RX 8800 XT
+7301%
19.91 TFLOPS
GeForce GT 620
0.269 TFLOPS
Graphics Card
Unknown
Release Date
May 2012
Navi IV(RX 8000)
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1295 MHz
Base Clock
-
2430 MHz
Boost Clock
-
2438 MHz
Memory Clock
900 MHz
Memory
16GB
Memory Size
1024MB
GDDR6
Memory Type
DDR3
256bit
Memory Bus
64bit
624.1GB/s
Bandwidth
14.40GB/s
Render Config
64
Compute Units
-
-
SM Count
2
4096
Shading Units
96
256
TMUs
16
96
ROPs
4
-
-
-
64
RT Cores
-
128 KB per Array
L1 Cache
64 KB (per SM)
4 MB
L2 Cache
128 KB
64 MB
L3 Cache
-
Theoretical Performance
233.3 GPixel/s
Pixel Rate
2.800 GPixel/s
622.1 GTexel/s
Texture Rate
11.20 GTexel/s
39.81 TFLOPS
FP16 (half)
-
19.91 TFLOPS
FP32 (float)
268.8 GFLOPS
622.1 GFLOPS
FP64 (double)
22.40 GFLOPS
Board Design
220W
TDP
49W
550 W
Suggested PSU
200 W
1x HDMI 2.1a3x DisplayPort 2.1
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
2x 8-pin
Power Connectors
None
Graphics Processor
Navi 48
GPU Name
GF108
Navi 48 XT
GPU Variant
GF108-100-KB-A1
RDNA 4.0
Architecture
Fermi
TSMC
Foundry
TSMC
4 nm
Process Size
40 nm
Unknown
Transistors
0.585 billion
Unknown
Die Size
116 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.2
OpenCL
1.1
1.3
Vulkan
N/A
-
CUDA
2.1
6.8
Shader Model
5.1
