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GPU Comparison
AMD Radeon HD 6770 vs NVIDIA GeForce 8400 GS
AMD Radeon HD 6770 vs NVIDIA GeForce 8400 GS
VS
AMD Radeon HD 6770
NVIDIA GeForce 8400 GS
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 256MB VRAM GeForce 8400 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6770 's Advantages
Released 3 years and 9 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (76.80GB/s vs 6.400GB/s)
784 additional rendering cores
NVIDIA GeForce 8400 GS 's Advantages
Lower TDP (40W vs 108W)
Score
Benchmark
FP32 (float)
Radeon HD 6770
+4589%
1.36 TFLOPS
GeForce 8400 GS
0.029 TFLOPS
Radeon HD 6770
VS
GeForce 8400 GS
Graphics Card
Jan 2011
Release Date
Apr 2007
Northern Islands
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1200 MHz
Memory Clock
400 MHz
Memory
1024MB
Memory Size
256MB
GDDR5
Memory Type
DDR2
128bit
Memory Bus
64bit
76.80GB/s
Bandwidth
6.400GB/s
Render Config
-
SM Count
2
10
Compute Units
-
800
Shading Units
16
40
TMUs
8
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
16 KB
Theoretical Performance
13.60 GPixel/s
Pixel Rate
1.836 GPixel/s
34.00 GTexel/s
Texture Rate
3.672 GTexel/s
-
FP16 (half)
-
1360 GFLOPS
FP32 (float)
29.38 GFLOPS
-
FP64 (double)
-
Graphics Processor
Juniper
GPU Name
G86
Juniper XT (215-0754013)
GPU Variant
G86-213-A2
TeraScale 2
Architecture
Tesla
TSMC
Foundry
TSMC
40 nm
Process Size
80 nm
1.04 billion
Transistors
0.21 billion
166 mm²
Die Size
127 mm²
Board Design
108W
TDP
40W
300 W
Suggested PSU
200 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
1x DVI 1x VGA 1x S-Video
1x 6-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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