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GPU Comparison
AMD Radeon HD 7950 vs AMD Radeon HD 6770 Green Edition
AMD Radeon HD 7950 vs AMD Radeon HD 6770 Green Edition
VS
AMD Radeon HD 7950
AMD Radeon HD 6770 Green Edition
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 and 2GB VRAM Radeon HD 6770 Green Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7950 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (240.0GB/s vs 21.34GB/s)
1072 additional rendering cores
AMD Radeon HD 6770 Green Edition 's Advantages
Released 1 years and 3 months late
Lower TDP (86W vs 200W)
Score
Benchmark
FP32 (float)
Radeon HD 7950
+184%
2.867 TFLOPS
Radeon HD 6770 Green Edition
1.008 TFLOPS
Radeon HD 7950
VS
Radeon HD 6770 Green Edition
Graphics Card
Jan 2012
Release Date
Apr 2013
Southern Islands
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1250 MHz
Memory Clock
667 MHz
Memory
3GB
Memory Size
2GB
GDDR5
Memory Type
GDDR3
384bit
Memory Bus
128bit
240.0GB/s
Bandwidth
21.34GB/s
Render Config
-
SM Count
-
28
Compute Units
9
1792
Shading Units
720
112
TMUs
36
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
768 KB
L2 Cache
256 KB
Theoretical Performance
25.60 GPixel/s
Pixel Rate
11.20 GPixel/s
89.60 GTexel/s
Texture Rate
25.20 GTexel/s
-
FP16 (half)
-
2.867 TFLOPS
FP32 (float)
1008 GFLOPS
716.8 GFLOPS
FP64 (double)
-
Graphics Processor
Tahiti
GPU Name
Juniper
Tahiti PRO (215-0821056)
GPU Variant
Juniper LE (215-0754009)
GCN 1.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
4.313 billion
Transistors
1.04 billion
352 mm²
Die Size
166 mm²
Board Design
200W
TDP
86W
550 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
2x 6-pin
Power Connectors
-
Graphics Features
12 (11_1)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
1.2
OpenCL
1.2
1.2
Vulkan
N/A
-
CUDA
-
5.1
Shader Model
5.0
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