Radeon R7 250 OEM vs Radeon HD 7770 GHz Edition
We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 250 OEM and 1024MB VRAM Radeon HD 7770 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R7 250 OEM 's Advantages
Released 1 years and 8 months late
Boost Clock1050MHz
More VRAM (2GB vs 1024GB)
Lower TDP (65W vs 80W)
Radeon HD 7770 GHz Edition 's Advantages
Larger VRAM bandwidth (72.00GB/s vs 32.00GB/s)
256 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R7 250 OEM
806
Radeon HD 7770 GHz Edition
+58%
1280
Graphics Card
Oct 2013
Release Date
Feb 2012
Volcanic Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
1000 MHz
Base Clock
-
1050 MHz
Boost Clock
-
1000 MHz
Memory Clock
1125 MHz
Memory
2GB
Memory Size
1024MB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
128bit
32.00GB/s
Bandwidth
72.00GB/s
Render Config
6
Compute Units
10
384
Shading Units
640
24
TMUs
40
8
ROPs
16
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
Theoretical Performance
8.400 GPixel/s
Pixel Rate
16.00 GPixel/s
25.20 GTexel/s
Texture Rate
40.00 GTexel/s
806.4 GFLOPS
FP32 (float)
1280 GFLOPS
50.40 GFLOPS
FP64 (double)
80.00 GFLOPS
Board Design
65W
TDP
80W
250 W
Suggested PSU
250 W
1x DVI
1x HDMI 1.4a
1x VGA
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
None
Power Connectors
1x 6-pin
Graphics Processor
Oland
GPU Name
Cape Verde
Oland XT
(215-0837000)
GPU Variant
Cape Verde XT
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.95 billion
Transistors
1.5 billion
77 mm²
Die Size
123 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
