Radeon HD 6510 vs Radeon HD 7870 GHz Edition
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6510 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
Radeon HD 6510 Advantages
Lower TDP (39W vs 175W)
Radeon HD 7870 GHz Edition Advantages
Released 10 months late
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (153.6GB/s vs 16.00GB/s)
880 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 6510
520
Radeon HD 7870 GHz Edition
+392%
2560
Graphics Card
May 2011
Release Date
Mar 2012
Northern Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
500 MHz
Memory Clock
1200 MHz
Memory
1024MB
Memory Size
2GB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
16.00GB/s
Bandwidth
153.6GB/s
Render Config
5
Compute Units
20
400
Shading Units
1280
20
TMUs
80
8
ROPs
32
8 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
Theoretical Performance
5.200 GPixel/s
Pixel Rate
32.00 GPixel/s
13.00 GTexel/s
Texture Rate
80.00 GTexel/s
520.0 GFLOPS
FP32 (float)
2.560 TFLOPS
-
FP64 (double)
160.0 GFLOPS
Board Design
39W
TDP
175W
200 W
Suggested PSU
450 W
1x DVI
1x HDMI 1.3a
1x VGA
1x HDMI 1.3a
1x VGA
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
1x HDMI 1.4a
2x mini-DisplayPort 1.2
None
Power Connectors
2x 6-pin
Graphics Processor
Redwood
GPU Name
Pitcairn
Redwood PRO
(215-0757004)
(215-0757004)
GPU Variant
Pitcairn XT
(215-0828047)
(215-0828047)
TeraScale 2
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.627 billion
Transistors
2.8 billion
104 mm²
Die Size
212 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
