AMD Radeon R9 280X2 vs NVIDIA GeForce GT 620
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X2 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 R9 280X2 's Advantages
Boost Clock1000MHz
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (288.0GB/s vs 14.40GB/s)
1952 additional rendering cores
NVIDIA GeForce GT 620 's Advantages
Lower TDP (49W vs 375W)
Score
Benchmark
FP32 (float)
Radeon R9 280X2
+1422%
4.096 TFLOPS
GeForce GT 620
0.269 TFLOPS
Graphics Card
Unknown
Release Date
May 2012
Volcanic Islands
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
950 MHz
Base Clock
-
1000 MHz
Boost Clock
-
1500 MHz
Memory Clock
900 MHz
Memory
3GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
384bit
Memory Bus
64bit
288.0GB/s
Bandwidth
14.40GB/s
Render Config
32
Compute Units
-
-
SM Count
2
2048
Shading Units
96
128
TMUs
16
32
ROPs
4
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
64 KB (per SM)
768 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
32.00 GPixel/s
Pixel Rate
2.800 GPixel/s
128.0 GTexel/s
Texture Rate
11.20 GTexel/s
-
-
-
4.096 TFLOPS
FP32 (float)
268.8 GFLOPS
1024 GFLOPS
FP64 (double)
22.40 GFLOPS
Board Design
375W
TDP
49W
750 W
Suggested PSU
200 W
6x mini-DisplayPort 1.2
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
3x 8-pin
Power Connectors
None
Graphics Processor
Tahiti
GPU Name
GF108
Tahiti XTL
(215-0821065)
GPU Variant
GF108-100-KB-A1
GCN 1.0
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
4.313 billion
Transistors
0.585 billion
352 mm²
Die Size
116 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
2.1
5.1
Shader Model
5.1
