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GPU Comparison
NVIDIA GeForce 8400 GS Rev. 3 vs AMD Radeon HD 6870 X2
NVIDIA GeForce 8400 GS Rev. 3 vs AMD Radeon HD 6870 X2
VS
NVIDIA GeForce 8400 GS Rev. 3
AMD Radeon HD 6870 X2
We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS Rev. 3 and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce 8400 GS Rev. 3 's Advantages
Lower TDP (25W vs 300W)
AMD Radeon HD 6870 X2 's Advantages
Released 1 years late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (134.4GB/s vs 6.400GB/s)
1112 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 8400 GS Rev. 3
0.02 TFLOPS
Radeon HD 6870 X2
+9980%
2.016 TFLOPS
GeForce 8400 GS Rev. 3
VS
Radeon HD 6870 X2
Graphics Card
Jul 2010
Release Date
Jul 2011
GeForce 8
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
400 MHz
Memory Clock
1050 MHz
Memory
512MB
Memory Size
1024MB
DDR2
Memory Type
GDDR5
64bit
Memory Bus
256bit
6.400GB/s
Bandwidth
134.4GB/s
Render Config
1
SM Count
-
-
Compute Units
14
8
Shading Units
1120
4
TMUs
56
4
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
-
L1 Cache
8 KB (per CU)
32 KB
L2 Cache
512 KB
Theoretical Performance
2.080 GPixel/s
Pixel Rate
28.80 GPixel/s
2.080 GTexel/s
Texture Rate
50.40 GTexel/s
-
FP16 (half)
-
19.68 GFLOPS
FP32 (float)
2.016 TFLOPS
-
FP64 (double)
-
Graphics Processor
GT218
GPU Name
Barts
8400GS-225-B1
GPU Variant
Barts XT (215-0798000)
Tesla 2.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
0.26 billion
Transistors
1.7 billion
57 mm²
Die Size
255 mm²
Board Design
25W
TDP
300W
200 W
Suggested PSU
700 W
1x DVI 1x VGA 1x S-Video
Outputs
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
None
Power Connectors
-
Graphics Features
11.1 (10_1)
DirectX
11.2 (11_0)
3.3
OpenGL
4.4
1.1
OpenCL
1.2
N/A
Vulkan
N/A
1.2
CUDA
-
4.1
Shader Model
5.0
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