AMD Radeon HD 6990 vs AMD Radeon HD 6250
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 512MB VRAM Radeon HD 6250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6990 's Advantages
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (160.0GB/s vs 8.000GB/s)
1456 additional rendering cores
AMD Radeon HD 6250 's Advantages
Lower TDP (19W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 6990
+2351%
2.55 TFLOPS
Radeon HD 6250
0.104 TFLOPS
Graphics Card
Mar 2011
Release Date
Jan 2011
Northern Islands
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
500 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
64bit
160.0GB/s
Bandwidth
8.000GB/s
Render Config
24
Compute Units
2
-
-
-
1536
Shading Units
80
96
TMUs
8
32
ROPs
4
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
26.56 GPixel/s
Pixel Rate
2.600 GPixel/s
79.68 GTexel/s
Texture Rate
5.200 GTexel/s
-
-
-
2.550 TFLOPS
FP32 (float)
104.0 GFLOPS
637.4 GFLOPS
FP64 (double)
-
Board Design
375W
TDP
19W
750 W
Suggested PSU
200 W
1x DVI
4x mini-DisplayPort 1.2
Outputs
1x DVI
1x HDMI 1.3a
2x 8-pin
Power Connectors
None
Graphics Processor
Antilles
GPU Name
Cedar
Antilles XT
(215-0807027)
GPU Variant
Cedar PRO
TeraScale 3
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
2.64 billion
Transistors
0.292 billion
389 mm²
Die Size
59 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
