Radeon RX 6800 XT vs GeForce GT 620
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6800 XT 's Advantages
Released 8 years and 5 months late
Boost Clock2250MHz
More VRAM (16GB vs 1024GB)
Larger VRAM bandwidth (512.0GB/s vs 14.40GB/s)
4512 additional rendering cores
GeForce GT 620 's Advantages
Lower TDP (49W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 6800 XT
+7610%
20740
GeForce GT 620
269
3DMark Time Spy
Radeon RX 6800 XT
+20683%
19329
GeForce GT 620
93
3DMark Time Spy Extreme
Radeon RX 6800 XT
+16836%
9315
GeForce GT 620
55
Graphics Card
Oct 2020
Release Date
May 2012
Navi II
Generation
GeForce 600
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
900 MHz
Memory
16GB
Memory Size
1024MB
GDDR6
Memory Type
DDR3
256bit
Memory Bus
64bit
512.0GB/s
Bandwidth
14.40GB/s
Render Config
72
Compute Units
-
-
SM Count
2
4608
Shading Units
96
288
TMUs
16
128
ROPs
4
72
RT Cores
-
128 KB per Array
L1 Cache
64 KB (per SM)
4 MB
L2 Cache
128 KB
128 MB
L3 Cache
-
Theoretical Performance
288.0 GPixel/s
Pixel Rate
2.800 GPixel/s
648.0 GTexel/s
Texture Rate
11.20 GTexel/s
41.47 TFLOPS
FP16 (half)
-
20.74 TFLOPS
FP32 (float)
268.8 GFLOPS
1296 GFLOPS
FP64 (double)
22.40 GFLOPS
Board Design
300W
TDP
49W
700 W
Suggested PSU
200 W
1x HDMI 2.1
2x DisplayPort 1.4a
1x USB Type-C
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
2x 8-pin
Power Connectors
None
Graphics Processor
Navi 21
GPU Name
GF108
Navi 21 XT
(215-121000177)
GPU Variant
GF108-100-KB-A1
RDNA 2.0
Architecture
Fermi
TSMC
Foundry
TSMC
7 nm
Process Size
40 nm
26.8 billion
Transistors
0.585 billion
520 mm²
Die Size
116 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1
OpenCL
1.1
1.3
Vulkan
N/A
-
CUDA
2.1
6.5
Shader Model
5.1