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GPU Comparison
AMD Radeon HD 6970 vs NVIDIA GeForce 8400 GS Rev. 2
AMD Radeon HD 6970 vs NVIDIA GeForce 8400 GS Rev. 2
VS
AMD Radeon HD 6970
NVIDIA GeForce 8400 GS Rev. 2
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 and 512MB VRAM GeForce 8400 GS Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6970 's Advantages
Released 3 years late
Larger VRAM bandwidth (176.0GB/s vs 6.400GB/s)
1528 additional rendering cores
NVIDIA GeForce 8400 GS Rev. 2 's Advantages
Lower TDP (25W vs 250W)
Score
Benchmark
FP32 (float)
Radeon HD 6970
+12186%
2.703 TFLOPS
GeForce 8400 GS Rev. 2
0.022 TFLOPS
Radeon HD 6970
VS
GeForce 8400 GS Rev. 2
Graphics Card
Dec 2010
Release Date
Dec 2007
Northern Islands
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1375 MHz
Memory Clock
400 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
64bit
176.0GB/s
Bandwidth
6.400GB/s
Render Config
-
SM Count
1
24
Compute Units
-
1536
Shading Units
8
96
TMUs
4
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
16 KB
Theoretical Performance
28.16 GPixel/s
Pixel Rate
2.268 GPixel/s
84.48 GTexel/s
Texture Rate
2.268 GTexel/s
-
FP16 (half)
-
2.703 TFLOPS
FP32 (float)
22.40 GFLOPS
675.8 GFLOPS
FP64 (double)
-
Graphics Processor
Cayman
GPU Name
G98
Cayman XT (215-0807007)
GPU Variant
-
TeraScale 3
Architecture
Tesla
TSMC
Foundry
TSMC
40 nm
Process Size
65 nm
2.64 billion
Transistors
0.21 billion
389 mm²
Die Size
86 mm²
Board Design
250W
TDP
25W
600 W
Suggested PSU
200 W
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x VGA 1x S-Video
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Features
11.2 (11_0)
DirectX
11.1 (10_0)
4.4
OpenGL
3.3
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
1.1
5.0
Shader Model
4.0
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