GeForce GTX 680 Mac Edition vs Radeon HD 7870 XT
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 680 Mac Edition and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 680 Mac Edition 's Advantages
Boost Clock has increased by 9% (1058MHz vs 975MHz)
Larger VRAM bandwidth (192.3GB/s vs 192.0GB/s)
Radeon HD 7870 XT 's Advantages
Lower TDP (185W vs 195W)
Score
Benchmark
FP32 (float)
GeForce GTX 680 Mac Edition
+8%
3250
Radeon HD 7870 XT
2995
Graphics Card
Apr 2013
Release Date
Nov 2012
GeForce 600
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1006 MHz
Base Clock
925 MHz
1058 MHz
Boost Clock
975 MHz
1502 MHz
Memory Clock
1500 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
192.3GB/s
Bandwidth
192.0GB/s
Render Config
-
Compute Units
24
1536
Shading Units
1536
128
TMUs
96
32
ROPs
32
16 KB (per SMX)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
512 KB
Theoretical Performance
33.86 GPixel/s
Pixel Rate
31.20 GPixel/s
135.4 GTexel/s
Texture Rate
93.60 GTexel/s
3.250 TFLOPS
FP32 (float)
2.995 TFLOPS
135.4 GFLOPS
FP64 (double)
748.8 GFLOPS
Board Design
195W
TDP
185W
450 W
Suggested PSU
450 W
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
2x 6-pin
Graphics Processor
GK104
GPU Name
Tahiti
GK104-400-A2
GPU Variant
Tahiti LE
(215-0821122)
Kepler
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
3.54 billion
Transistors
4.313 billion
294 mm²
Die Size
352 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
1.2
1.1
Vulkan
1.2
3.0
CUDA
-
5.1
Shader Model
5.1
