AMD Radeon HD 7790 vs AMD Radeon R9 290
GPU · Specs Compare
Graphics Card
Release Date
Mar 2013
Nov 2013
Generation
Southern Islands
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1500 MHz
1250 MHz
Memory
Memory Size
1024MB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
512bit
Bandwidth
96.00GB/s
320.0GB/s
Render Config
Compute Units
14
40
Shading Units
896
2560
TMUs
56
160
ROPs
16
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
1024 KB
Theoretical Performance
Pixel Rate
16.00 GPixel/s
60.61 GPixel/s
Texture Rate
56.00 GTexel/s
151.5 GTexel/s
FP32 (float)
1.792 TFLOPS
4.849 TFLOPS
FP64 (double)
112.0 GFLOPS
606.1 GFLOPS
Graphics Processor
GPU Name
Bonaire
Hawaii
GPU Variant
Bonaire XT(215-0839039)
Hawaii PRO(215-0852020)
Architecture
GCN 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.08 billion
6.2 billion
Die Size
160 mm²
438 mm²
Board Design
TDP
85W
275W
Suggested PSU
250 W
600 W
Outputs
1x DVI1x HDMI 1.4a2x mini-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
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.0
2.0
Vulkan
1.2
1.2
Shader Model
6.3
6.3
Benchmark
3DMark Time Spy
1,307
3,694
3DMark Time Spy Extreme
409
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▲ Specs Compare
Data sourced from official specifications and benchmark tests.