AMD Radeon HD 7870 GHz Edition vs AMD Radeon R9 290
GPU Specs Compare
Graphics Card
Release Date
Mar 2012
Nov 2013
Generation
Southern Islands
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1200 MHz
1250 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
512bit
Bandwidth
153.6GB/s
320.0GB/s
Render Config
Compute Units
20
40
Shading Units
1280
2560
TMUs
80
160
ROPs
32
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
60.61 GPixel/s
Texture Rate
80.00 GTexel/s
151.5 GTexel/s
FP32 (float)
2.560 TFLOPS
4.849 TFLOPS
FP64 (double)
160.0 GFLOPS
606.1 GFLOPS
Graphics Processor
GPU Name
Pitcairn
Hawaii
GPU Variant
Pitcairn XT(215-0828047)
Hawaii PRO(215-0852020)
Architecture
GCN 1.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
6.2 billion
Die Size
212 mm²
438 mm²
Board Design
TDP
175W
275W
Suggested PSU
450 W
600 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2
1.2
Shader Model
5.1
6.3
📊 Benchmark
3DMark Time Spy
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3,694