Home GPU Comparison AMD Radeon HD 6970 vs AMD Radeon R9 280X2

AMD Radeon HD 6970 vs AMD Radeon R9 280X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 and 3GB VRAM Radeon R9 280X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970 's Advantages
Lower TDP (250W vs 375W)
AMD Radeon R9 280X2 's Advantages
Boost Clock1000MHz
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (288.0GB/s vs 176.0GB/s)
512 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 6970
2.703 TFLOPS
Radeon R9 280X2 +51%
4.096 TFLOPS
VS

Graphics Card

Dec 2010
Release Date
Unknown
Northern Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
950 MHz
-
Boost Clock
1000 MHz
1375 MHz
Memory Clock
1500 MHz

Memory

2GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
384bit
176.0GB/s
Bandwidth
288.0GB/s

Render Config

24
Compute Units
32
-
-
-
1536
Shading Units
2048
96
TMUs
128
32
ROPs
32
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
768 KB
-
-
-

Theoretical Performance

28.16 GPixel/s
Pixel Rate
32.00 GPixel/s
84.48 GTexel/s
Texture Rate
128.0 GTexel/s
-
-
-
2.703 TFLOPS
FP32 (float)
4.096 TFLOPS
675.8 GFLOPS
FP64 (double)
1024 GFLOPS

Board Design

250W
TDP
375W
600 W
Suggested PSU
750 W
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
6x mini-DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
3x 8-pin

Graphics Processor

Cayman
GPU Name
Tahiti
Cayman XT (215-0807007)
GPU Variant
Tahiti XTL (215-0821065)
TeraScale 3
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
2.64 billion
Transistors
4.313 billion
389 mm²
Die Size
352 mm²

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
-
-
-
5.0
Shader Model
5.1

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