Home GPU Comparison AMD Radeon HD 6770 vs AMD Radeon HD 8670 OEM

AMD Radeon HD 6770 vs AMD Radeon HD 8670 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 2GB VRAM Radeon HD 8670 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770 's Advantages
Larger VRAM bandwidth (76.80GB/s vs 73.60GB/s)
416 additional rendering cores
AMD Radeon HD 8670 OEM 's Advantages
Released 2 years late
Boost Clock1050MHz
More VRAM (2GB vs 1024GB)
Lower TDP (75W vs 108W)

Score

Benchmark

FP32 (float)
Radeon HD 6770 +68%
1.36 TFLOPS
Radeon HD 8670 OEM
0.806 TFLOPS
VS

Graphics Card

Jan 2011
Release Date
Jan 2013
Northern Islands
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8

Clock Speeds

-
Base Clock
1000 MHz
-
Boost Clock
1050 MHz
1200 MHz
Memory Clock
1150 MHz

Memory

1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
76.80GB/s
Bandwidth
73.60GB/s

Render Config

10
Compute Units
6
-
-
-
800
Shading Units
384
40
TMUs
24
16
ROPs
8
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

13.60 GPixel/s
Pixel Rate
8.400 GPixel/s
34.00 GTexel/s
Texture Rate
25.20 GTexel/s
-
-
-
1360 GFLOPS
FP32 (float)
806.4 GFLOPS
-
FP64 (double)
50.40 GFLOPS

Board Design

108W
TDP
75W
300 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
1x DVI 1x HDMI 1.4a 1x VGA
1x 6-pin
Power Connectors
None

Graphics Processor

Juniper
GPU Name
Oland
Juniper XT (215-0754013)
GPU Variant
Oland XT (215-0837000)
TeraScale 2
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
1.04 billion
Transistors
0.95 billion
166 mm²
Die Size
77 mm²

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
-
-
-
5.0
Shader Model
5.1

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