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GPU Comparison
AMD Radeon HD 6870 X2 vs AMD Radeon HD 6790
AMD Radeon HD 6870 X2 vs AMD Radeon HD 6790
VS
AMD Radeon HD 6870 X2
AMD Radeon HD 6790
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 1024MB VRAM Radeon HD 6790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870 X2 's Advantages
320 additional rendering cores
AMD Radeon HD 6790 's Advantages
Lower TDP (150W vs 300W)
Score
Benchmark
FP32 (float)
Radeon HD 6870 X2
+50%
2.016 TFLOPS
Radeon HD 6790
1.344 TFLOPS
Radeon HD 6870 X2
VS
Radeon HD 6790
Graphics Card
Jul 2011
Release Date
Apr 2011
Northern Islands
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1050 MHz
Memory Clock
1050 MHz
Memory
1024MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
134.4GB/s
Bandwidth
134.4GB/s
Render Config
-
SM Count
-
14
Compute Units
10
1120
Shading Units
800
56
TMUs
40
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
512 KB
Theoretical Performance
28.80 GPixel/s
Pixel Rate
13.44 GPixel/s
50.40 GTexel/s
Texture Rate
33.60 GTexel/s
-
FP16 (half)
-
2.016 TFLOPS
FP32 (float)
1344 GFLOPS
-
FP64 (double)
-
Graphics Processor
Barts
GPU Name
Barts
Barts XT (215-0798000)
GPU Variant
Barts LE (215-0798002)
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.7 billion
Transistors
1.7 billion
255 mm²
Die Size
255 mm²
Board Design
300W
TDP
150W
700 W
Suggested PSU
450 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
-
Power Connectors
2x 6-pin
Graphics Features
11.2 (11_0)
DirectX
11.2 (11_0)
4.4
OpenGL
4.4
1.2
OpenCL
1.2
N/A
Vulkan
N/A
-
CUDA
-
5.0
Shader Model
5.0
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