GPU Comparison
RADEON
AMD Radeon HD 7970M
CORE STATE
Wimbledon
VRAM
2 GB
CLOCK SPEED
—
TDP
100 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2012
VS
GEFORCE
GRID K2
CORE STATE
GK104
VRAM
4 GB
CLOCK SPEED
—
TDP
225 W
BUS WIDTH
256 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970M
GRID K2
Core Specs
Shading Units
1,280
1,536
+20.0%
Shaders
1,280
1,536
+20.0%
TMUs
80
128
+60.0%
ROPs
32
32
0.0%
Compute Units
20
—
Clocks
GPU Clock
850 MHz
745 MHz
Memory Clock
1200 MHz
4.8 Gbps effective
1250 MHz
5 Gbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
256 bit
Bandwidth
153.6 GB/s
160.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
27.20 GPixel/s
23.84 GPixel/s
Texture Rate
68.00 GTexel/s
95.36 GTexel/s
FP32 (TFLOPS)
2.176 TFLOPS
2.289 TFLOPS
FP64 (TFLOPS)
136.0 GFLOPS (1:16)
95.36 GFLOPS (1:24)
Power
TDP
100 W
225 W
TDP (W)
100
225
+125.0%
Suggested PSU
—
550 W
Power Connectors
None
1x 6-pin + 1x 8-pin
Architecture
Architecture
GCN 1.0
Kepler
GPU Name
Wimbledon
GK104
Generation
London
(HD 7900M)
GRID
(K2)
Process Size
28 nm
28 nm
Transistors
2,800 million
3,540 million
Die Size
212 mm²
294 mm²
Foundry
TSMC
TSMC
Density
13.2M / mm²
12.0M / mm²
API Support
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.175
OpenCL
2.1 (1.2)
3.0
CUDA
—
3.0
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
MXM Module
Dual-slot
Length
—
267 mm
10.5 inches
Outputs
Portable Device Dependent
No outputs
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Other
Launch Price
—
5,199 USD
Production
End-of-life
End-of-life
Predecessor
Vancouver
—
Successor
Solar System
—