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GPU Comparison
AMD Radeon HD 7720 OEM vs AMD Radeon HD 7870 GHz Edition
AMD Radeon HD 7720 OEM vs AMD Radeon HD 7870 GHz Edition
VS
AMD Radeon HD 7720 OEM
AMD Radeon HD 7870 GHz Edition
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7720 OEM and 2GB VRAM Radeon HD 7870 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7720 OEM 's Advantages
Released 1 years late
Lower TDP (150W vs 175W)
AMD Radeon HD 7870 GHz Edition 's Advantages
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (153.6GB/s vs 134.4GB/s)
480 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 7720 OEM
1.344 TFLOPS
Radeon HD 7870 GHz Edition
+90%
2.56 TFLOPS
Radeon HD 7720 OEM
VS
Radeon HD 7870 GHz Edition
Graphics Card
Mar 2013
Release Date
Mar 2012
Southern Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1050 MHz
Memory Clock
1200 MHz
Memory
1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
134.4GB/s
Bandwidth
153.6GB/s
Render Config
-
SM Count
-
10
Compute Units
20
800
Shading Units
1280
40
TMUs
80
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
512 KB
Theoretical Performance
26.88 GPixel/s
Pixel Rate
32.00 GPixel/s
33.60 GTexel/s
Texture Rate
80.00 GTexel/s
-
FP16 (half)
-
1344 GFLOPS
FP32 (float)
2.560 TFLOPS
-
FP64 (double)
160.0 GFLOPS
Graphics Processor
Barts
GPU Name
Pitcairn
Barts LE (215-0798002)
GPU Variant
Pitcairn XT (215-0828047)
TeraScale 2
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
1.7 billion
Transistors
2.8 billion
255 mm²
Die Size
212 mm²
Board Design
150W
TDP
175W
450 W
Suggested PSU
450 W
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
-
Power Connectors
2x 6-pin
Graphics Features
11.2 (11_0)
DirectX
12 (11_1)
4.4
OpenGL
4.6
1.2
OpenCL
1.2
N/A
Vulkan
1.2
-
CUDA
-
5.0
Shader Model
5.1
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