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GPU Comparison
AMD Radeon HD 7770 GHz Edition vs AMD Radeon R5 340 OEM
AMD Radeon HD 7770 GHz Edition vs AMD Radeon R5 340 OEM
VS
AMD Radeon HD 7770 GHz Edition
AMD Radeon R5 340 OEM
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 1024MB VRAM Radeon R5 340 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7770 GHz Edition 's Advantages
Larger VRAM bandwidth (72.00GB/s vs 36.80GB/s)
256 additional rendering cores
AMD Radeon R5 340 OEM 's Advantages
Released 3 years and 3 months late
Boost Clock780MHz
Lower TDP (65W vs 80W)
Score
Benchmark
FP32 (float)
Radeon HD 7770 GHz Edition
+113%
1.28 TFLOPS
Radeon R5 340 OEM
0.599 TFLOPS
Radeon HD 7770 GHz Edition
VS
Radeon R5 340 OEM
Graphics Card
Feb 2012
Release Date
May 2015
Southern Islands
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
730 MHz
-
Boost Clock
780 MHz
1125 MHz
Memory Clock
1150 MHz
Memory
1024MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
64bit
72.00GB/s
Bandwidth
36.80GB/s
Render Config
10
Compute Units
6
-
-
-
640
Shading Units
384
40
TMUs
24
16
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
16.00 GPixel/s
Pixel Rate
6.240 GPixel/s
40.00 GTexel/s
Texture Rate
18.72 GTexel/s
-
-
-
1280 GFLOPS
FP32 (float)
599.0 GFLOPS
80.00 GFLOPS
FP64 (double)
37.44 GFLOPS
Board Design
80W
TDP
65W
250 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x DisplayPort 1.2
1x 6-pin
Power Connectors
None
Graphics Processor
Cape Verde
GPU Name
Oland
Cape Verde XT
GPU Variant
Oland PRO (215-0837015)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.5 billion
Transistors
0.95 billion
123 mm²
Die Size
77 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
5.1
Shader Model
5.1
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