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GPU Comparison
AMD Radeon HD 6870 X2 vs AMD Radeon R7 250E
AMD Radeon HD 6870 X2 vs AMD Radeon R7 250E
VS
AMD Radeon HD 6870 X2
AMD Radeon R7 250E
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 1024MB VRAM Radeon R7 250E to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870 X2 's Advantages
Larger VRAM bandwidth (134.4GB/s vs 72.00GB/s)
608 additional rendering cores
AMD Radeon R7 250E 's Advantages
Released 2 years and 5 months late
Lower TDP (55W vs 300W)
Score
Benchmark
FP32 (float)
Radeon HD 6870 X2
+146%
2.016 TFLOPS
Radeon R7 250E
0.819 TFLOPS
Radeon HD 6870 X2
VS
Radeon R7 250E
Graphics Card
Jul 2011
Release Date
Dec 2013
Northern Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1050 MHz
Memory Clock
1125 MHz
Memory
1024MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
134.4GB/s
Bandwidth
72.00GB/s
Render Config
-
SM Count
-
14
Compute Units
8
1120
Shading Units
512
56
TMUs
32
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB
Theoretical Performance
28.80 GPixel/s
Pixel Rate
12.80 GPixel/s
50.40 GTexel/s
Texture Rate
25.60 GTexel/s
-
FP16 (half)
-
2.016 TFLOPS
FP32 (float)
819.2 GFLOPS
-
FP64 (double)
51.20 GFLOPS
Graphics Processor
Barts
GPU Name
Cape Verde
Barts XT (215-0798000)
GPU Variant
Cape Verde PRO
TeraScale 2
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
1.7 billion
Transistors
1.5 billion
255 mm²
Die Size
123 mm²
Board Design
300W
TDP
55W
700 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
-
Power Connectors
None
Graphics Features
11.2 (11_0)
DirectX
12 (11_1)
4.4
OpenGL
4.6
1.2
OpenCL
1.2
N/A
Vulkan
1.2
-
CUDA
-
5.0
Shader Model
5.1
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