Radeon HD 6870 vs Radeon X1950 GT
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 256MB VRAM Radeon X1950 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 6870 's Advantages
Released 3 years and 9 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (134.4GB/s vs 38.40GB/s)
1120 additional rendering cores
Radeon X1950 GT 's Advantages
Lower TDP (57W vs 151W)
Score
Graphics Card
Oct 2010
Release Date
Jan 2007
Northern Islands
Generation
Radeon R500 PCIe
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
1050 MHz
Memory Clock
600 MHz
Memory
1024MB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
256bit
134.4GB/s
Bandwidth
38.40GB/s
Render Config
14
Compute Units
-
1120
Shading Units
-
56
TMUs
12
32
ROPs
12
8 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
-
Theoretical Performance
28.80 GPixel/s
Pixel Rate
6.000 GPixel/s
50.40 GTexel/s
Texture Rate
6.000 GTexel/s
2.016 TFLOPS
FP32 (float)
-
Board Design
151W
TDP
57W
450 W
Suggested PSU
250 W
2x DVI
1x HDMI 1.3a
2x mini-DisplayPort 1.1
Outputs
2x DVI
1x S-Video
2x 6-pin
Power Connectors
1x 6-pin
Graphics Processor
Barts
GPU Name
RV570
Barts XT
(215-0798000)
GPU Variant
RV570 XL
TeraScale 2
Architecture
R500
TSMC
Foundry
TSMC
40 nm
Process Size
80 nm
1.7 billion
Transistors
0.33 billion
255 mm²
Die Size
230 mm²
Graphics Features
11.2 (11_0)
DirectX
9.0c (9_3)
4.4
OpenGL
2.1 (full)
3.0 (partial)
1.2
OpenCL
N/A
N/A
Vulkan
N/A
5.0
Shader Model
3.0
