ATI FirePro V7900 vs AMD Radeon R9 390X
GPU · Specs Compare
Graphics Card
Release Date
May 2011
Jun 2015
Generation
FirePro
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
1500 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
512bit
Bandwidth
160.0GB/s
384.0GB/s
Render Config
Compute Units
20
44
Shading Units
1280
2816
TMUs
80
176
ROPs
32
64
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Theoretical Performance
Pixel Rate
23.20 GPixel/s
67.20 GPixel/s
Texture Rate
58.00 GTexel/s
184.8 GTexel/s
FP32 (float)
1.856 TFLOPS
5.914 TFLOPS
FP64 (double)
464.0 GFLOPS
739.2 GFLOPS
Graphics Processor
GPU Name
Cayman
Grenada
GPU Variant
Cayman PRO GL
Grenada XT(215-0880004)
Architecture
TeraScale 3
GCN 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
2.64 billion
6.2 billion
Die Size
389 mm²
438 mm²
Board Design
TDP
150W
275W
Suggested PSU
450 W
600 W
Outputs
4x DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
OpenCL
1.2
2.0
Vulkan
N/A
1.2
Shader Model
5.0
6.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.