NVIDIA TITAN X Pascal vs AMD Radeon HD 6990
We compared two Desktop platform GPUs: 12GB VRAM TITAN X Pascal and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA TITAN X Pascal 's Advantages
Released 5 years and 5 months late
Boost Clock1531MHz
More VRAM (12GB vs 2GB)
Larger VRAM bandwidth (480.4GB/s vs 160.0GB/s)
2048 additional rendering cores
Lower TDP (250W vs 375W)
Score
Benchmark
FP32 (float)
TITAN X Pascal
+330%
10.97 TFLOPS
Radeon HD 6990
2.55 TFLOPS
Graphics Card
Aug 2016
Release Date
Mar 2011
GeForce 10
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1417 MHz
Base Clock
-
1531 MHz
Boost Clock
-
1251 MHz
Memory Clock
1250 MHz
Memory
12GB
Memory Size
2GB
GDDR5X
Memory Type
GDDR5
384bit
Memory Bus
256bit
480.4GB/s
Bandwidth
160.0GB/s
Render Config
-
Compute Units
24
28
SM Count
-
3584
Shading Units
1536
224
TMUs
96
96
ROPs
32
-
-
-
-
-
-
48 KB (per SM)
L1 Cache
8 KB (per CU)
3 MB
L2 Cache
512 KB
-
-
-
Theoretical Performance
147.0 GPixel/s
Pixel Rate
26.56 GPixel/s
342.9 GTexel/s
Texture Rate
79.68 GTexel/s
171.5 GFLOPS
FP16 (half)
-
10.97 TFLOPS
FP32 (float)
2.550 TFLOPS
342.9 GFLOPS
FP64 (double)
637.4 GFLOPS
Board Design
250W
TDP
375W
600 W
Suggested PSU
750 W
1x DVI
1x HDMI 2.0
3x DisplayPort 1.4a
Outputs
1x DVI
4x mini-DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
2x 8-pin
Graphics Processor
GP102
GPU Name
Antilles
GP102-400-A1
GPU Variant
Antilles XT
(215-0807027)
Pascal
Architecture
TeraScale 3
TSMC
Foundry
TSMC
16 nm
Process Size
40 nm
11.8 billion
Transistors
2.64 billion
471 mm²
Die Size
389 mm²
Graphics Features
12 (12_1)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
3.0
OpenCL
1.2
1.3
Vulkan
N/A
6.1
CUDA
-
6.4
Shader Model
5.0
