AMD Radeon HD 7990 vs AMD P30PH
GPU Specs Compare
Graphics Card
Release Date
Apr 2013
Unknown
Generation
Southern Islands
Mining GPUs
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
950 MHz
1120 MHz
Boost Clock
1000 MHz
1206 MHz
Memory Clock
1500 MHz
2100 MHz
Memory
Memory Size
3GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
256bit
Bandwidth
288.0GB/s
268.8GB/s
Render Config
Compute Units
32
32
Shading Units
2048
2048
TMUs
128
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
2 MB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
38.59 GPixel/s
Texture Rate
128.0 GTexel/s
154.4 GTexel/s
FP32 (float)
4.096 TFLOPS
4.940 TFLOPS
FP64 (double)
1024 GFLOPS
308.7 GFLOPS
FP16 (half)
-
4.940 TFLOPS
Graphics Processor
GPU Name
Malta
Polaris 20
GPU Variant
Malta XT(215-0849026)
-
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
4.313 billion
5.7 billion
Die Size
365 mm²
232 mm²
Board Design
TDP
375W
180W
Suggested PSU
750 W
450 W
Outputs
1x DVI4x mini-DisplayPort 1.2
1x HDMI 2.0b
Power Connectors
2x 8-pin
2x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.3
Shader Model
5.1
6.7