GeForce GTX 970 vs GeForce GT 620
We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 970 and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 970 's Advantages
Released 2 years and 4 months late
Boost Clock1178MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (224.4GB/s vs 14.40GB/s)
1568 additional rendering cores
GeForce GT 620 's Advantages
Lower TDP (49W vs 148W)
Score
Benchmark
FP32 (float)
GeForce GTX 970
+1357%
3920
GeForce GT 620
269
3DMark Time Spy
GeForce GTX 970
+3820%
3646
GeForce GT 620
93
3DMark Time Spy Extreme
GeForce GTX 970
+2960%
1683
GeForce GT 620
55
Graphics Card
Sep 2014
Release Date
May 2012
GeForce 900
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1050 MHz
Base Clock
-
1178 MHz
Boost Clock
-
1753 MHz
Memory Clock
900 MHz
Memory
4GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
224.4GB/s
Bandwidth
14.40GB/s
Render Config
-
SM Count
2
1664
Shading Units
96
104
TMUs
16
56
ROPs
4
48 KB (per SMM)
L1 Cache
64 KB (per SM)
2 MB
L2 Cache
128 KB
Theoretical Performance
65.97 GPixel/s
Pixel Rate
2.800 GPixel/s
122.5 GTexel/s
Texture Rate
11.20 GTexel/s
3.920 TFLOPS
FP32 (float)
268.8 GFLOPS
122.5 GFLOPS
FP64 (double)
22.40 GFLOPS
Board Design
148W
TDP
49W
300 W
Suggested PSU
200 W
1x DVI
1x HDMI 2.0
3x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
2x 6-pin
Power Connectors
None
Graphics Processor
GM204
GPU Name
GF108
GM204-200-A1
GPU Variant
GF108-100-KB-A1
Maxwell 2.0
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
5.2 billion
Transistors
0.585 billion
398 mm²
Die Size
116 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.3
Vulkan
N/A
5.2
CUDA
2.1
6.4
Shader Model
5.1
