Radeon HD 6870 vs Radeon HD 7670 OEM
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 512MB VRAM Radeon HD 7670 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 6870 's Advantages
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (134.4GB/s vs 64.00GB/s)
640 additional rendering cores
Radeon HD 7670 OEM 's Advantages
Released 1 years and 3 months late
Lower TDP (66W vs 151W)
Score
Benchmark
FP32 (float)
Radeon HD 6870
+162%
2016
Radeon HD 7670 OEM
768
Graphics Card
Oct 2010
Release Date
Jan 2012
Northern Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1050 MHz
Memory Clock
1000 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
134.4GB/s
Bandwidth
64.00GB/s
Render Config
14
Compute Units
6
1120
Shading Units
480
56
TMUs
24
32
ROPs
8
8 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
256 KB
Theoretical Performance
28.80 GPixel/s
Pixel Rate
6.400 GPixel/s
50.40 GTexel/s
Texture Rate
19.20 GTexel/s
2.016 TFLOPS
FP32 (float)
768.0 GFLOPS
Board Design
151W
TDP
66W
450 W
Suggested PSU
250 W
2x DVI
1x HDMI 1.3a
2x mini-DisplayPort 1.1
Outputs
1x DVI
1x DisplayPort 1.1
1x VGA
2x 6-pin
Power Connectors
None
Graphics Processor
Barts
GPU Name
Turks
Barts XT
(215-0798000)
GPU Variant
Turks XT
(215-0803000)
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.7 billion
Transistors
0.716 billion
255 mm²
Die Size
118 mm²
Graphics Features
11.2 (11_0)
DirectX
11.2 (11_0)
4.4
OpenGL
4.4
1.2
OpenCL
1.2
N/A
Vulkan
N/A
5.0
Shader Model
5.0
