AMD Radeon HD 7790 vs AMD Radeon R9 M290X
GPU Specs Compare
Graphics Card
Release Date
Mar 2013
Jan 2014
Generation
Southern Islands
Gem System
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1500 MHz
1200 MHz
Base Clock
-
850 MHz
Boost Clock
-
900 MHz
Memory
Memory Size
1024MB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
256bit
Bandwidth
96.00GB/s
153.6GB/s
Render Config
Compute Units
14
20
Shading Units
896
1280
TMUs
56
80
ROPs
16
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
512 KB
Theoretical Performance
Pixel Rate
16.00 GPixel/s
28.80 GPixel/s
Texture Rate
56.00 GTexel/s
72.00 GTexel/s
FP32 (float)
1.792 TFLOPS
2.304 TFLOPS
FP64 (double)
112.0 GFLOPS
144.0 GFLOPS
Graphics Processor
GPU Name
Bonaire
Neptune
GPU Variant
Bonaire XT(215-0839039)
Neptune XT(216-0847000)
Architecture
GCN 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.08 billion
2.8 billion
Die Size
160 mm²
212 mm²
Board Design
TDP
85W
100W
Suggested PSU
250 W
-
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Power Connectors
1x 6-pin
None
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.0
2.1 (1.2)
Vulkan
1.2
1.2.170
Shader Model
6.3
6.5 (5.1)
📊 Benchmark
3DMark Time Spy
1,307
-
3DMark Time Spy Extreme
409
-