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GPU Comparison
AMD Radeon HD 7950 Boost vs AMD Radeon HD 6990
AMD Radeon HD 7950 Boost vs AMD Radeon HD 6990
VS
AMD Radeon HD 7950 Boost
AMD Radeon HD 6990
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Boost and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7950 Boost 's Advantages
Released 1 years and 3 months late
Boost Clock925MHz
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (240.0GB/s vs 160.0GB/s)
256 additional rendering cores
Lower TDP (200W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 7950 Boost
+30%
3.315 TFLOPS
Radeon HD 6990
2.55 TFLOPS
Radeon HD 7950 Boost
VS
Radeon HD 6990
Graphics Card
Jun 2012
Release Date
Mar 2011
Southern Islands
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
850 MHz
Base Clock
-
925 MHz
Boost Clock
-
1250 MHz
Memory Clock
1250 MHz
Memory
3GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
256bit
240.0GB/s
Bandwidth
160.0GB/s
Render Config
-
SM Count
-
28
Compute Units
24
1792
Shading Units
1536
112
TMUs
96
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
768 KB
L2 Cache
512 KB
Theoretical Performance
29.60 GPixel/s
Pixel Rate
26.56 GPixel/s
103.6 GTexel/s
Texture Rate
79.68 GTexel/s
-
FP16 (half)
-
3.315 TFLOPS
FP32 (float)
2.550 TFLOPS
828.8 GFLOPS
FP64 (double)
637.4 GFLOPS
Graphics Processor
Tahiti
GPU Name
Antilles
Tahiti PRO2 (215-0821282)
GPU Variant
Antilles XT (215-0807027)
GCN 1.0
Architecture
TeraScale 3
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
4.313 billion
Transistors
2.64 billion
352 mm²
Die Size
389 mm²
Board Design
200W
TDP
375W
550 W
Suggested PSU
750 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 4x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
2x 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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