AMD Radeon HD 6990 vs NVIDIA GRID M6 8Q
GPU Specs Compare
Graphics Card
Release Date
Mar 2011
Aug 2015
Generation
Northern Islands
GRID
Type
Desktop
Professional
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
1253 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
160.4GB/s
Render Config
Compute Units
24
-
Shading Units
1536
1536
TMUs
96
96
ROPs
32
64
L1 Cache
8 KB (per CU)
48 KB (per SMM)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
26.56 GPixel/s
46.21 GPixel/s
Texture Rate
79.68 GTexel/s
69.31 GTexel/s
FP32 (float)
2.550 TFLOPS
2.218 TFLOPS
FP64 (double)
637.4 GFLOPS
69.31 GFLOPS
Graphics Processor
GPU Name
Antilles
GM204
GPU Variant
Antilles XT(215-0807027)
GM204-995-A1
Architecture
TeraScale 3
Maxwell 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
2.64 billion
5.2 billion
Die Size
389 mm²
398 mm²
Board Design
TDP
375W
100W
Suggested PSU
750 W
300 W
Outputs
1x DVI4x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.3
Shader Model
5.0
6.4
CUDA
-
5.2