AMD Radeon R9 M290X Mac Edition vs AMD Radeon HD 7950 Boost
GPU · Specs Compare
Graphics Card
Release Date
Nov 2014
Jun 2012
Generation
Crystal System
Southern Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
850 MHz
850 MHz
Boost Clock
975 MHz
925 MHz
Memory Clock
1365 MHz
1250 MHz
Memory
Memory Size
2GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
174.7GB/s
240.0GB/s
Render Config
Compute Units
16
28
Shading Units
1024
1792
TMUs
64
112
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Theoretical Performance
Pixel Rate
31.20 GPixel/s
29.60 GPixel/s
Texture Rate
62.40 GTexel/s
103.6 GTexel/s
FP32 (float)
1.997 TFLOPS
3.315 TFLOPS
FP64 (double)
124.8 GFLOPS
828.8 GFLOPS
Graphics Processor
GPU Name
Pitcairn
Tahiti
GPU Variant
Pitcairn PRO(215-0828062)
Tahiti PRO2(215-0821282)
Architecture
GCN 1.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
4.313 billion
Die Size
212 mm²
352 mm²
Board Design
TDP
80W
200W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
2x 6-pin
Suggested PSU
—
550 W
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
1.2
Vulkan
1.2
1.2
Shader Model
5.1
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.