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GPU Comparison
AMD Radeon 550X 640SP vs NVIDIA GeForce 8400 GS PCI
AMD Radeon 550X 640SP vs NVIDIA GeForce 8400 GS PCI
VS
AMD Radeon 550X 640SP
NVIDIA GeForce 8400 GS PCI
We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 512MB VRAM GeForce 8400 GS PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon 550X 640SP 's Advantages
Released 10 years and 4 months late
Boost Clock1071MHz
Larger VRAM bandwidth (48.00GB/s vs 5.328GB/s)
632 additional rendering cores
NVIDIA GeForce 8400 GS PCI 's Advantages
Lower TDP (25W vs 50W)
Score
Benchmark
FP32 (float)
Radeon 550X 640SP
+6131%
1.371 TFLOPS
GeForce 8400 GS PCI
0.022 TFLOPS
Radeon 550X 640SP
VS
GeForce 8400 GS PCI
Graphics Card
Apr 2018
Release Date
Dec 2007
Polaris
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCI
Clock Speeds
1019 MHz
Base Clock
-
1071 MHz
Boost Clock
-
1500 MHz
Memory Clock
333 MHz
Memory
4GB
Memory Size
512MB
GDDR5
Memory Type
DDR2
64bit
Memory Bus
64bit
48.00GB/s
Bandwidth
5.328GB/s
Render Config
-
SM Count
1
10
Compute Units
-
640
Shading Units
8
40
TMUs
4
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
16 KB
Theoretical Performance
17.14 GPixel/s
Pixel Rate
2.268 GPixel/s
42.84 GTexel/s
Texture Rate
2.268 GTexel/s
1371 GFLOPS
FP16 (half)
-
1371 GFLOPS
FP32 (float)
22.40 GFLOPS
85.68 GFLOPS
FP64 (double)
-
Graphics Processor
Lexa
GPU Name
G98
Lexa PRO (215-0904018)
GPU Variant
G98-400-U2
GCN 4.0
Architecture
Tesla
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
65 nm
2.2 billion
Transistors
0.21 billion
103 mm²
Die Size
86 mm²
Board Design
50W
TDP
25W
250 W
Suggested PSU
200 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
1x S-Video 1x DMS-59
None
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
2.1
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.1
6.4
Shader Model
4.0
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