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GPU Comparison
AMD Radeon HD 6990 vs AMD Radeon R7 260X
AMD Radeon HD 6990 vs AMD Radeon R7 260X
VS
AMD Radeon HD 6990
AMD Radeon R7 260X
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 2GB VRAM Radeon R7 260X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6990 's Advantages
Larger VRAM bandwidth (160.0GB/s vs 104.0GB/s)
640 additional rendering cores
AMD Radeon R7 260X 's Advantages
Released 2 years and 7 months late
Lower TDP (115W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 6990
+29%
2.55 TFLOPS
Radeon R7 260X
1.971 TFLOPS
Radeon HD 6990
VS
Radeon R7 260X
Graphics Card
Mar 2011
Release Date
Oct 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
-
1250 MHz
Memory Clock
1625 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
160.0GB/s
Bandwidth
104.0GB/s
Render Config
-
SM Count
-
24
Compute Units
14
1536
Shading Units
896
96
TMUs
56
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
26.56 GPixel/s
Pixel Rate
17.60 GPixel/s
79.68 GTexel/s
Texture Rate
61.60 GTexel/s
-
FP16 (half)
-
2.550 TFLOPS
FP32 (float)
1.971 TFLOPS
637.4 GFLOPS
FP64 (double)
123.2 GFLOPS
Graphics Processor
Antilles
GPU Name
Bonaire
Antilles XT (215-0807027)
GPU Variant
Bonaire XTX (215-0839097)
TeraScale 3
Architecture
GCN 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
2.64 billion
Transistors
2.08 billion
389 mm²
Die Size
160 mm²
Board Design
375W
TDP
115W
750 W
Suggested PSU
300 W
1x DVI 4x mini-DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
2x 8-pin
Power Connectors
1x 6-pin
Graphics Features
11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.0
N/A
Vulkan
1.2
-
CUDA
-
5.0
Shader Model
6.3
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