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GPU Comparison
NVIDIA GeForce 8400 GS Rev. 3 vs AMD Radeon HD 7950 Mac Edition
NVIDIA GeForce 8400 GS Rev. 3 vs AMD Radeon HD 7950 Mac Edition
VS
NVIDIA GeForce 8400 GS Rev. 3
AMD Radeon HD 7950 Mac Edition
We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS Rev. 3 and 3GB VRAM Radeon HD 7950 Mac Edition 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 200W)
AMD Radeon HD 7950 Mac Edition 's Advantages
Released 2 years and 8 months late
Larger VRAM bandwidth (240.0GB/s vs 6.400GB/s)
1784 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 8400 GS Rev. 3
0.02 TFLOPS
Radeon HD 7950 Mac Edition
+14235%
2.867 TFLOPS
GeForce 8400 GS Rev. 3
VS
Radeon HD 7950 Mac Edition
Graphics Card
Jul 2010
Release Date
Mar 2013
GeForce 8
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
400 MHz
Memory Clock
1250 MHz
Memory
512MB
Memory Size
3GB
DDR2
Memory Type
GDDR5
64bit
Memory Bus
384bit
6.400GB/s
Bandwidth
240.0GB/s
Render Config
1
SM Count
-
-
Compute Units
28
8
Shading Units
1792
4
TMUs
112
4
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
-
L1 Cache
16 KB (per CU)
32 KB
L2 Cache
768 KB
Theoretical Performance
2.080 GPixel/s
Pixel Rate
25.60 GPixel/s
2.080 GTexel/s
Texture Rate
89.60 GTexel/s
-
FP16 (half)
-
19.68 GFLOPS
FP32 (float)
2.867 TFLOPS
-
FP64 (double)
716.8 GFLOPS
Graphics Processor
GT218
GPU Name
Tahiti
8400GS-225-B1
GPU Variant
Tahiti PRO (215-0821056)
Tesla 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.26 billion
Transistors
4.313 billion
57 mm²
Die Size
352 mm²
Board Design
25W
TDP
200W
200 W
Suggested PSU
550 W
1x DVI 1x VGA 1x S-Video
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
None
Power Connectors
2x 6-pin
Graphics Features
11.1 (10_1)
DirectX
12 (11_1)
3.3
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
1.2
CUDA
-
4.1
Shader Model
5.1
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