Radeon HD 6990 vs GeForce 8600 GTS
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 256MB VRAM GeForce 8600 GTS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 6990 's Advantages
Released 3 years and 11 months late
More VRAM (2GB vs 256GB)
Larger VRAM bandwidth (160.0GB/s vs 32.00GB/s)
1504 additional rendering cores
GeForce 8600 GTS 's Advantages
Lower TDP (60W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 6990
+2641%
2550
GeForce 8600 GTS
93
Graphics Card
Mar 2011
Release Date
Apr 2007
Northern Islands
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
1250 MHz
Memory Clock
1000 MHz
Memory
2GB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
160.0GB/s
Bandwidth
32.00GB/s
Render Config
24
Compute Units
-
-
SM Count
4
1536
Shading Units
32
96
TMUs
16
32
ROPs
8
8 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
32 KB
Theoretical Performance
26.56 GPixel/s
Pixel Rate
5.400 GPixel/s
79.68 GTexel/s
Texture Rate
10.80 GTexel/s
2.550 TFLOPS
FP32 (float)
92.80 GFLOPS
637.4 GFLOPS
FP64 (double)
-
Board Design
375W
TDP
60W
750 W
Suggested PSU
250 W
1x DVI
4x mini-DisplayPort 1.2
Outputs
2x DVI
1x S-Video
2x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
Antilles
GPU Name
G84
Antilles XT
(215-0807027)
GPU Variant
G84-400-A2
TeraScale 3
Architecture
Tesla
TSMC
Foundry
TSMC
40 nm
Process Size
80 nm
2.64 billion
Transistors
0.289 billion
389 mm²
Die Size
169 mm²
Graphics Features
11.2 (11_0)
DirectX
11.1 (10_0)
4.4
OpenGL
3.3
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
1.1
5.0
Shader Model
4.0
