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GPU Comparison
AMD Radeon HD 6870 vs NVIDIA GeForce GT 620 OEM
AMD Radeon HD 6870 vs NVIDIA GeForce GT 620 OEM
VS
AMD Radeon HD 6870
NVIDIA GeForce GT 620 OEM
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 512MB VRAM GeForce GT 620 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870 's Advantages
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (134.4GB/s vs 14.37GB/s)
1072 additional rendering cores
NVIDIA GeForce GT 620 OEM 's Advantages
Released 1 years and 6 months late
Lower TDP (30W vs 151W)
Score
Benchmark
FP32 (float)
Radeon HD 6870
+1192%
2.016 TFLOPS
GeForce GT 620 OEM
0.156 TFLOPS
Radeon HD 6870
VS
GeForce GT 620 OEM
Graphics Card
Oct 2010
Release Date
Apr 2012
Northern Islands
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1050 MHz
Memory Clock
898 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
134.4GB/s
Bandwidth
14.37GB/s
Render Config
-
SM Count
1
14
Compute Units
-
1120
Shading Units
48
56
TMUs
8
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
128 KB
Theoretical Performance
28.80 GPixel/s
Pixel Rate
1.620 GPixel/s
50.40 GTexel/s
Texture Rate
6.480 GTexel/s
-
FP16 (half)
-
2.016 TFLOPS
FP32 (float)
155.5 GFLOPS
-
FP64 (double)
12.96 GFLOPS
Graphics Processor
Barts
GPU Name
GF119
Barts XT (215-0798000)
GPU Variant
-
TeraScale 2
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.7 billion
Transistors
0.292 billion
255 mm²
Die Size
79 mm²
Board Design
151W
TDP
30W
450 W
Suggested PSU
200 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
2x 6-pin
Power Connectors
None
Graphics Features
11.2 (11_0)
DirectX
12 (11_0)
4.4
OpenGL
4.6
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
2.1
5.0
Shader Model
5.1
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