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GPU Comparison
AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce GT 420 OEM
AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce GT 420 OEM
VS
AMD Radeon HD 6870 1600SP Edition
NVIDIA GeForce GT 420 OEM
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 1024MB VRAM GeForce GT 420 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870 1600SP Edition 's Advantages
Released 2 years and 4 months late
Larger VRAM bandwidth (134.4GB/s vs 28.80GB/s)
1552 additional rendering cores
NVIDIA GeForce GT 420 OEM 's Advantages
Lower TDP (50W vs 175W)
Score
Benchmark
FP32 (float)
Radeon HD 6870 1600SP Edition
+1929%
2.72 TFLOPS
GeForce GT 420 OEM
0.134 TFLOPS
Radeon HD 6870 1600SP Edition
VS
GeForce GT 420 OEM
Graphics Card
Jan 2013
Release Date
Sep 2010
Northern Islands
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1050 MHz
Memory Clock
900 MHz
Memory
1024MB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
134.4GB/s
Bandwidth
28.80GB/s
Render Config
-
SM Count
1
20
Compute Units
-
1600
Shading Units
48
80
TMUs
4
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
256 KB
Theoretical Performance
27.20 GPixel/s
Pixel Rate
1.400 GPixel/s
68.00 GTexel/s
Texture Rate
2.800 GTexel/s
-
FP16 (half)
-
2.720 TFLOPS
FP32 (float)
134.4 GFLOPS
544.0 GFLOPS
FP64 (double)
11.20 GFLOPS
Graphics Processor
Cypress
GPU Name
GF108
Cypress XT (215-0735033)
GPU Variant
GF108-200-A1
TeraScale 2
Architecture
Fermi
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
2.154 billion
Transistors
0.585 billion
334 mm²
Die Size
116 mm²
Board Design
175W
TDP
50W
450 W
Suggested PSU
250 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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