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GPU Comparison
AMD Radeon R9 270X vs AMD Radeon HD 6970
AMD Radeon R9 270X vs AMD Radeon HD 6970
VS
AMD Radeon R9 270X
AMD Radeon HD 6970
We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270X and 2GB VRAM Radeon HD 6970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 270X 's Advantages
Released 2 years and 10 months late
Boost Clock1050MHz
Larger VRAM bandwidth (179.2GB/s vs 176.0GB/s)
Lower TDP (180W vs 250W)
AMD Radeon HD 6970 's Advantages
256 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R9 270X
2.688 TFLOPS
Radeon HD 6970
2.703 TFLOPS
Radeon R9 270X
VS
Radeon HD 6970
Graphics Card
Oct 2013
Release Date
Dec 2010
Volcanic Islands
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1000 MHz
Base Clock
-
1050 MHz
Boost Clock
-
1400 MHz
Memory Clock
1375 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
179.2GB/s
Bandwidth
176.0GB/s
Render Config
-
SM Count
-
20
Compute Units
24
1280
Shading Units
1536
80
TMUs
96
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
512 KB
Theoretical Performance
33.60 GPixel/s
Pixel Rate
28.16 GPixel/s
84.00 GTexel/s
Texture Rate
84.48 GTexel/s
-
FP16 (half)
-
2.688 TFLOPS
FP32 (float)
2.703 TFLOPS
168.0 GFLOPS
FP64 (double)
675.8 GFLOPS
Graphics Processor
Curacao
GPU Name
Cayman
Curacao XT (215-0848004)
GPU Variant
Cayman XT (215-0807007)
GCN 1.0
Architecture
TeraScale 3
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
2.8 billion
Transistors
2.64 billion
212 mm²
Die Size
389 mm²
Board Design
180W
TDP
250W
450 W
Suggested PSU
600 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin
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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