AMD Radeon HD 8990 OEM vs NVIDIA GRID K520
GPU Specs Compare
Graphics Card
Release Date
Apr 2013
Jul 2013
Generation
Sea Islands
GRID
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
950 MHz
-
Boost Clock
1000 MHz
-
Memory Clock
1500 MHz
1250 MHz
Memory
Memory Size
3GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
256bit
Bandwidth
288.0GB/s
160.0GB/s
Render Config
Compute Units
32
-
Shading Units
2048
1536
TMUs
128
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
768 KB
512 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
23.84 GPixel/s
Texture Rate
128.0 GTexel/s
95.36 GTexel/s
FP32 (float)
4.096 TFLOPS
2.289 TFLOPS
FP64 (double)
1024 GFLOPS
95.36 GFLOPS
Graphics Processor
GPU Name
Malta
GK104
GPU Variant
Malta XT(215-0849026)
-
Architecture
GCN 1.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
4.313 billion
3.54 billion
Die Size
365 mm²
294 mm²
Board Design
TDP
375W
225W
Suggested PSU
750 W
550 W
Outputs
1x DVI4x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 8-pin
1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.1
Shader Model
5.1
5.1
CUDA
-
3.0