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GPU Comparison
NVIDIA GeForce GTX 680 Mac Edition vs AMD Radeon HD 6990
NVIDIA GeForce GTX 680 Mac Edition vs AMD Radeon HD 6990
VS
NVIDIA GeForce GTX 680 Mac Edition
AMD Radeon HD 6990
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 680 Mac Edition and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Released 2 years and 1 months late
Boost Clock1058MHz
Larger VRAM bandwidth (192.3GB/s vs 160.0GB/s)
Lower TDP (195W vs 375W)
Score
Benchmark
FP32 (float)
GeForce GTX 680 Mac Edition
+27%
3.25 TFLOPS
Radeon HD 6990
2.55 TFLOPS
GeForce GTX 680 Mac Edition
VS
Radeon HD 6990
Graphics Card
Apr 2013
Release Date
Mar 2011
GeForce 600
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1006 MHz
Base Clock
-
1058 MHz
Boost Clock
-
1502 MHz
Memory Clock
1250 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
192.3GB/s
Bandwidth
160.0GB/s
Render Config
-
Compute Units
24
-
-
-
1536
Shading Units
1536
128
TMUs
96
32
ROPs
32
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
33.86 GPixel/s
Pixel Rate
26.56 GPixel/s
135.4 GTexel/s
Texture Rate
79.68 GTexel/s
-
-
-
3.250 TFLOPS
FP32 (float)
2.550 TFLOPS
135.4 GFLOPS
FP64 (double)
637.4 GFLOPS
Board Design
195W
TDP
375W
450 W
Suggested PSU
750 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 4x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
2x 8-pin
Graphics Processor
GK104
GPU Name
Antilles
GK104-400-A2
GPU Variant
Antilles XT (215-0807027)
Kepler
Architecture
TeraScale 3
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
3.54 billion
Transistors
2.64 billion
294 mm²
Die Size
389 mm²
Graphics Features
12 (11_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
3.0
OpenCL
1.2
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
5.0
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