AMD Radeon HD 6990 vs NVIDIA GeForce GTX 460 OEM
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 1024MB VRAM GeForce GTX 460 OEM 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 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 108.8GB/s)
1200 additional rendering cores
NVIDIA GeForce GTX 460 OEM 's Advantages
Lower TDP (150W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 6990
+191%
2.55 TFLOPS
GeForce GTX 460 OEM
0.874 TFLOPS
Graphics Card
Mar 2011
Release Date
Oct 2010
Northern Islands
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
850 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
160.0GB/s
Bandwidth
108.8GB/s
Render Config
24
Compute Units
-
-
SM Count
7
1536
Shading Units
336
96
TMUs
56
32
ROPs
32
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
26.56 GPixel/s
Pixel Rate
9.100 GPixel/s
79.68 GTexel/s
Texture Rate
36.40 GTexel/s
-
-
-
2.550 TFLOPS
FP32 (float)
873.6 GFLOPS
637.4 GFLOPS
FP64 (double)
72.80 GFLOPS
Board Design
375W
TDP
150W
750 W
Suggested PSU
450 W
1x DVI
4x mini-DisplayPort 1.2
Outputs
2x DVI
1x mini-HDMI 1.3a
2x 8-pin
Power Connectors
2x 6-pin
Graphics Processor
Antilles
GPU Name
GF104
Antilles XT
(215-0807027)
GPU Variant
GF104-325-A1
TeraScale 3
Architecture
Fermi
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
2.64 billion
Transistors
1.95 billion
389 mm²
Die Size
332 mm²
Graphics Features
11.2 (11_0)
DirectX
12 (11_0)
4.4
OpenGL
4.6
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
2.1
5.0
Shader Model
5.1
