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GPU Comparison
AMD Radeon HD 8870 OEM vs NVIDIA GeForce 8400
AMD Radeon HD 8870 OEM vs NVIDIA GeForce 8400
VS
AMD Radeon HD 8870 OEM
NVIDIA GeForce 8400
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 256MB VRAM GeForce 8400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 8870 OEM 's Advantages
Released 5 years and 1 months late
Larger VRAM bandwidth (153.6GB/s vs 8.000GB/s)
1272 additional rendering cores
NVIDIA GeForce 8400 's Advantages
Lower TDP (25W vs 175W)
Score
Benchmark
FP32 (float)
Radeon HD 8870 OEM
+12090%
2.56 TFLOPS
GeForce 8400
0.021 TFLOPS
Radeon HD 8870 OEM
VS
GeForce 8400
Graphics Card
Jan 2013
Release Date
Dec 2007
Sea Islands
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1200 MHz
Memory Clock
500 MHz
Memory
2GB
Memory Size
256MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
64bit
153.6GB/s
Bandwidth
8.000GB/s
Render Config
-
SM Count
1
20
Compute Units
-
1280
Shading Units
8
80
TMUs
4
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
16 KB
Theoretical Performance
32.00 GPixel/s
Pixel Rate
2.160 GPixel/s
80.00 GTexel/s
Texture Rate
2.160 GTexel/s
-
FP16 (half)
-
2.560 TFLOPS
FP32 (float)
20.80 GFLOPS
160.0 GFLOPS
FP64 (double)
-
Graphics Processor
Pitcairn
GPU Name
G98
Pitcairn XT (215-0828047)
GPU Variant
-
GCN 1.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
65 nm
2.8 billion
Transistors
0.21 billion
212 mm²
Die Size
86 mm²
Board Design
175W
TDP
25W
450 W
Suggested PSU
200 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x VGA 1x S-Video
2x 6-pin
Power Connectors
None
Graphics Features
12 (11_1)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.1
5.1
Shader Model
4.0
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9
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